feat: update version to 1.4.3 in package.json, package-lock.json, and app-version.ts

- Deleted passkey-related interfaces and types from index.ts and types.ts.
- Removed passkey handling from App component, including related state and functions.
- Cleaned up API calls in auth.ts, removing passkey registration and login functions.
- Updated vault and import formats to eliminate passkey references.
- Removed passkey support checks and UI elements from AuthViews and SettingsPage.
- Cleaned up unused passkey helper functions and constants.
- Adjusted related components and hooks to ensure consistent functionality without passkey support.

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,70 @@
+name: "Bug Report"
+description: "Report a reproducible bug / 反馈可复现问题"
+title: "[Bug] "
+labels: ["bug", "needs-triage"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for reporting. Please provide enough detail so maintainers can reproduce quickly.
+        感谢反馈，请尽量提供可复现信息，方便快速定位。
+
+  - type: checkboxes
+    id: checklist
+    attributes:
+      label: Pre-check / 提交前确认
+      options:
+        - label: I have searched existing issues and did not find a duplicate. / 我已搜索现有 issue，确认不是重复问题。
+          required: true
+        - label: I have read README and Project Wiki / 我已阅读 README 与 项目 Wiki。
+          required: true
+
+  - type: input
+    id: version
+    attributes:
+      label: Version / 版本
+      description: "Which version of NodeWarden are you using? Please provide the exact version or commit hash."
+      placeholder: "1.0.0"
+    validations:
+      required: true
+
+  - type: textarea
+    id: reproduce_steps
+    attributes:
+      label: Steps to Reproduce / 复现步骤
+      placeholder: |
+        1. Start service with ...
+        2. Open ...
+        3. Click ...
+        4. Observe ...
+    validations:
+      required: true
+
+  - type: textarea
+    id: expected
+    attributes:
+      label: Expected Behavior / 预期行为
+    validations:
+      required: true
+
+  - type: textarea
+    id: actual
+    attributes:
+      label: Actual Behavior / 实际行为
+    validations:
+      required: true
+
+  - type: textarea
+    id: logs
+    attributes:
+      label: Logs and Screenshots / 日志与截图
+      description: "Please paste key logs (docker logs / browser console / network errors)."
+      render: shell
+    validations:
+      required: false
+
+  - type: textarea
+    id: extra
+    attributes:
+      label: Additional Context / 补充信息
+      description: "Any workaround, frequency, impact scope, etc."

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,12 @@
+blank_issues_enabled: false
+contact_links:
+  - name: Project Wiki/ 项目文档
+    url: https://github.com/shuaiplus/nodewarden/wiki
+    about: |
+      Please check the documentation for common questions and troubleshooting steps.
+      请先查看文档，常见问题和排查步骤可能已经覆盖了你的问题。
+  - name: Project Discussions / 讨论区
+    url: https://github.com/shuaiplus/nodewarden/discussions
+    about: |
+      For general questions, feature discussions, or if you're not sure which template to use, please post in the Discussions section.
+      如果你有一般性问题、功能讨论，或者不确定使用哪个模板，请在讨论区发帖。

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -0,0 +1,62 @@
+name: "Feature Request"
+description: "Suggest an improvement / 功能建议"
+title: "[Feature] "
+labels: ["enhancement", "needs-triage"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Proposals with clear use-case and expected value are easier to evaluate.
+        说明清晰的使用场景和价值，有助于快速评估。
+
+  - type: checkboxes
+    id: checklist
+    attributes:
+      label: Pre-check / 提交前确认
+      options:
+        - label: I have searched existing issues and this request is not duplicated. / 我已搜索现有 issue，确认不是重复建议。
+          required: true
+
+  - type: textarea
+    id: problem
+    attributes:
+      label: Problem Statement / 现存问题
+      description: "What is difficult or missing today?"
+    validations:
+      required: true
+
+  - type: textarea
+    id: proposal
+    attributes:
+      label: Proposed Solution / 建议方案
+      description: "Describe your expected behavior, UI flow, API changes, etc."
+    validations:
+      required: true
+
+  - type: textarea
+    id: alternatives
+    attributes:
+      label: Alternatives Considered / 备选方案
+      description: "Any alternatives or workarounds you've considered."
+    validations:
+      required: false
+
+  - type: textarea
+    id: impact
+    attributes:
+      label: Expected Impact / 预期价值
+      description: "Who benefits? Any performance/security/maintenance concerns?"
+    validations:
+      required: true
+
+  - type: input
+    id: scope
+    attributes:
+      label: Scope (Optional) / 影响范围（可选）
+      placeholder: "frontend / backend / docs / deployment"
+
+  - type: textarea
+    id: extra
+    attributes:
+      label: Additional Context / 补充信息
+      description: "Mockups, references, related links, etc."

.github/workflows/sync-upstream.yml

@@ -4,6 +4,11 @@ on:
   schedule:
     - cron: "0 3 * * *"
   workflow_dispatch:
+    inputs:
+      target_commit:
+        description: 'Commit hash (leave blank to use latest commit)'
+        required: false
+        type: string
 
 permissions:
   contents: write
@@ -11,9 +16,8 @@ permissions:
 jobs:
   sync:
     runs-on: ubuntu-latest
-
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -22,13 +26,118 @@ jobs:
           git config user.name "github-actions[bot]"
           git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
 
-      - name: Sync main from upstream
+      - name: Add upstream
         run: |
           git remote add upstream https://github.com/shuaiplus/NodeWarden.git || true
-          git fetch upstream
+          git fetch upstream --tags
-          git checkout main
-          git merge upstream/main
 
-      - name: Push synced main
+      - name: Resolve target commit
+        id: resolve
         run: |
+          TRIGGER="${{ github.event_name }}"
+          MANUAL_INPUT="${{ github.event.inputs.target_commit }}"
+
+          if [ "$TRIGGER" = "schedule" ]; then
+            # Auto mode: resolve latest upstream release tag
+            LATEST_TAG=$(curl -s https://api.github.com/repos/shuaiplus/NodeWarden/releases/latest | jq -r .tag_name)
+            if [ "$LATEST_TAG" = "null" ] || [ -z "$LATEST_TAG" ]; then
+              echo "No release found in upstream."
+              exit 1
+            fi
+            TARGET_SHA=$(git rev-list -n 1 "$LATEST_TAG" 2>/dev/null)
+            if [ -z "$TARGET_SHA" ]; then
+              echo "Tag '$LATEST_TAG' not found after fetch."
+              exit 1
+            fi
+            echo "mode=auto" >> $GITHUB_OUTPUT
+            echo "latest_tag=$LATEST_TAG" >> $GITHUB_OUTPUT
+            echo "target_sha=$TARGET_SHA" >> $GITHUB_OUTPUT
+            echo "Auto mode — latest release: $LATEST_TAG ($TARGET_SHA)"
+
+          elif [ -n "$MANUAL_INPUT" ]; then
+            # Manual mode: use provided commit hash or tag
+            TARGET_SHA=$(git rev-parse "$MANUAL_INPUT" 2>/dev/null)
+            if [ -z "$TARGET_SHA" ]; then
+              echo "Cannot resolve '$MANUAL_INPUT' to a commit."
+              exit 1
+            fi
+            echo "mode=manual" >> $GITHUB_OUTPUT
+            echo "target_sha=$TARGET_SHA" >> $GITHUB_OUTPUT
+            echo "Manual mode — target: $MANUAL_INPUT ($TARGET_SHA)"
+
+          else
+            # Manual mode, blank input: use latest commit on upstream/main
+            TARGET_SHA=$(git rev-parse upstream/main)
+            echo "mode=manual" >> $GITHUB_OUTPUT
+            echo "target_sha=$TARGET_SHA" >> $GITHUB_OUTPUT
+            echo "Manual mode — latest commit: $TARGET_SHA"
+          fi
+
+      - name: Check if update is needed
+        id: check
+        run: |
+          TARGET_SHA="${{ steps.resolve.outputs.target_sha }}"
+          MODE="${{ steps.resolve.outputs.mode }}"
+
+          if [ "$MODE" = "manual" ]; then
+            # Manual: skip only if HEAD is exactly this commit
+            CURRENT_SHA=$(git rev-parse HEAD)
+            if [ "$CURRENT_SHA" = "$TARGET_SHA" ]; then
+              echo "Already at $TARGET_SHA — skipping."
+              echo "needs_update=false" >> $GITHUB_OUTPUT
+            else
+              echo "Switching to $TARGET_SHA"
+              echo "needs_update=true" >> $GITHUB_OUTPUT
+            fi
+          else
+            # Auto: skip if target is already in ancestry
+            if git merge-base --is-ancestor "$TARGET_SHA" HEAD 2>/dev/null; then
+              echo "Already up to date with $TARGET_SHA — skipping."
+              echo "needs_update=false" >> $GITHUB_OUTPUT
+            else
+              echo "Update needed — target: $TARGET_SHA"
+              echo "needs_update=true" >> $GITHUB_OUTPUT
+            fi
+          fi
+
+      - name: Apply update
+        if: steps.check.outputs.needs_update == 'true'
+        run: |
+          TARGET_SHA="${{ steps.resolve.outputs.target_sha }}"
+          MODE="${{ steps.resolve.outputs.mode }}"
+          git checkout main
+          if [ "$MODE" = "manual" ]; then
+            # Hard reset allows both upgrade and rollback
+            git reset --hard "$TARGET_SHA"
+          else
+            git merge "$TARGET_SHA" --no-edit
+          fi
+
+      - name: Restore workflow file
+        if: steps.check.outputs.needs_update == 'true'
+        run: |
+          # Always keep our own workflow file, never let upstream overwrite it
+          git checkout HEAD@{1} -- .github/workflows/sync-upstream.yml 2>/dev/null || true
+          if ! git diff --cached --quiet; then
+            git commit -m "chore: restore sync-upstream workflow after sync"
+          fi
+
+      - name: Push
+        if: steps.check.outputs.needs_update == 'true'
+        run: |
+          if [ "${{ steps.resolve.outputs.mode }}" = "manual" ]; then
+            git push origin main --force
+          else
             git push origin main
+          fi
+
+      - name: Summary
+        run: |
+          if [ "${{ steps.check.outputs.needs_update }}" = "true" ]; then
+            echo "### Synced successfully" >> $GITHUB_STEP_SUMMARY
+            echo "- **Mode:** ${{ steps.resolve.outputs.mode }}" >> $GITHUB_STEP_SUMMARY
+            echo "- **Tag:** ${{ steps.resolve.outputs.latest_tag || 'N/A (manual)' }}" >> $GITHUB_STEP_SUMMARY
+            echo "- **Commit:** \`${{ steps.resolve.outputs.target_sha }}\`" >> $GITHUB_STEP_SUMMARY
+          else
+            echo "### Nothing to update" >> $GITHUB_STEP_SUMMARY
+          fi

.gitignore

@@ -40,3 +40,5 @@ npm-debug.log*
 
 tmp/
 .tmp/
+
+nodewarden.wiki/

README.md

@@ -13,6 +13,10 @@
 
 [更新日志](./RELEASE_NOTES.md) | [提交问题](https://github.com/shuaiplus/NodeWarden/issues/new/choose) | [最新发布](https://github.com/shuaiplus/NodeWarden/releases/latest)
 
+[文档首页](./nodewarden.wiki/Home.md) | [快速开始](./nodewarden.wiki/快速开始.md)
+
+[Telegram 频道](https://t.me/NodeWarden_News) | [Telegram 群组](https://t.me/NodeWarden_Official)
+
 English: [`README_EN.md`](./README_EN.md)
 
 > **免责声明**  
@@ -52,19 +56,26 @@ English: [`README_EN.md`](./README_EN.md)
 
 ## 网页部署
 
-
+1. Fork `NodeWarden` 仓库到自己的 GitHub 账号
-1. Fork 本仓库。若本项目对你有帮助，欢迎点个 Star。
+2. 进入  [Cloudflare Workers 创建页面](https://dash.cloudflare.com/?to=/:account/workers-and-pages/create)
-2. 打开 [Workers](https://dash.cloudflare.com/?to=/:account/workers-and-pages/create) ➜ `Continue with GitHub` ➜ 选择你 Fork 后的仓库（`NodeWarden`）➜ 下一步 ➜ （默认使用 R2 存储；若未开通，可用 KV 来代替，将**部署命令**改为 `npm run deploy:kv`）➜ 部署 ➜ 打开生成的链接
+3. 选择 `Continue with GitHub`
-
+4. 选择你刚刚 Fork 的仓库
-   | 储存 | 是否需绑卡 | 单个附件/Send文件上限 | 免费额度 |
+5. 保持默认配置继续部署
-   |---|---|---|---|
+6. 如果你打算用 KV 模式，把部署命令改成 `npm run deploy:kv`
-   | R2 | 需要 | 100 MB（软限制可更改） | 10 GB |
+7. 等部署完成后，打开生成的 Workers 域名
-   | KV | 不需要 | 25 MiB（Cloudflare限制） | 1 GB |
+8. 根据页面提示设置`JWT_SECRET` ，不建议临时乱填。这个值直接关系到令牌签发安全，正式环境至少使用 32 个字符以上的随机字符串。
 
 > [!TIP] 
-> 同步方法（更新仓库）：
+> 默认R2与可选KV的区别：
->- 手动：打开你 Fork 的 GitHub 仓库，看到顶部同步提示后，点击 `Sync fork` ➜ `Update branch`
+>   | 储存 | 是否需绑卡 | 单个附件/Send文件上限 | 免费额度 |
->- 自动：进入你的 Fork 仓库 ➜ `Actions` ➜ `Sync upstream` ➜ `Enable workflow`，会在每天凌晨 3 点自动同步上游。
+>   |---|---|---|---|
+>   | R2 | 需要 | 100 MB（软限制可更改） | 10 GB |
+>   | KV | 不需要 | 25 MiB（Cloudflare限制） | 1 GB |
+
+
+## 更新方法：
+- 手动：打开你 Fork 的 GitHub 仓库，看到顶部同步提示后，点击 `Sync fork` ➜ `Update branch`
+- 自动：进入你的 Fork 仓库 ➜ `Actions` ➜ `Sync upstream` ➜ `Enable workflow`，会在每天凌晨 3 点自动同步上游。
 
 
 

README_EN.md

@@ -5,32 +5,32 @@
 <p align="center">
   A third-party Bitwarden-compatible server running on Cloudflare Workers.
 </p>
-
 [![Powered by Cloudflare](https://img.shields.io/badge/Powered%20by-Cloudflare-F38020?logo=cloudflare&logoColor=white)](https://workers.cloudflare.com/)
 [![License: LGPL-3.0](https://img.shields.io/badge/License-LGPL--3.0-2ea44f)](./LICENSE)
 [![Latest Release](https://img.shields.io/github/v/release/shuaiplus/NodeWarden?display_name=tag)](https://github.com/shuaiplus/NodeWarden/releases/latest)
 [![Sync Upstream](https://github.com/shuaiplus/NodeWarden/actions/workflows/sync-upstream.yml/badge.svg)](https://github.com/shuaiplus/NodeWarden/actions/workflows/sync-upstream.yml)
-
 [Release Notes](./RELEASE_NOTES.md) | [Report an Issue](https://github.com/shuaiplus/NodeWarden/issues/new/choose) | [Latest Release](https://github.com/shuaiplus/NodeWarden/releases/latest)
-
+[Telegram Channel](https://t.me/NodeWarden_News) | [Telegram Group](https://t.me/NodeWarden_Official)
-English: [`README.md`](./README.md)
+中文说明：[`README.md`](./README.md)
 
 > **Disclaimer**
-> This project is for learning and communication purposes only. Please back up your vault regularly.  
+>
+> This project is for learning and discussion purposes only. Please back up your vault regularly.
+>
 > This project is not affiliated with Bitwarden. Please do not report NodeWarden issues to the official Bitwarden team.
 
 ---
 
-## Feature Comparison with Official Bitwarden Server
+## Feature Comparison with the Official Bitwarden Server
 
 | Capability | Bitwarden | NodeWarden | Notes |
 |---|---|---|---|
 | Web Vault | ✅ | ✅ | **Original Web Vault interface** |
-| Full sync `/api/sync` | ✅ | ✅ | Optimized for official clients |
+| Full sync `/api/sync` | ✅ | ✅ | Compatibility optimized for official clients |
 | Attachment upload / download | ✅ | ✅ | Cloudflare R2 or KV |
 | Send | ✅ | ✅ | Supports both text and file Sends |
 | Import / Export | ✅ | ✅ | Supports Bitwarden JSON / CSV / **ZIP import with attachments** |
-| **Cloud Backup Center** | ❌ | ✅ | **Supports scheduled backups with WebDAV / E3** |
+| **Cloud Backup Center** | ❌ | ✅ | **Scheduled backup to WebDAV / E3** |
 | Password hint (web) | ⚠️ Limited | ✅ | **No email required** |
 | TOTP / Steam TOTP | ✅ | ✅ | Includes `steam://` support |
 | Multi-user | ✅ | ✅ | Invite-based registration |
@@ -46,19 +46,20 @@ English: [`README.md`](./README.md)
 - ✅ Mobile app
 - ✅ Browser extension
 - ✅ Linux desktop client
-- ⚠️ macOS desktop client not fully verified
+- ⚠️ macOS desktop client has not been fully verified yet
 
 ---
 
 ## Web Deploy
 
-1. Fork this repository. If this project helps you, please consider giving it a Star.
+1. Fork this repository. If this project helps you, consider giving it a Star.
-2. Open [Workers](https://dash.cloudflare.com/?to=/:account/workers-and-pages/create) -> `Continue with GitHub` -> select your forked repository (`NodeWarden`) -> `Next` -> deploy.  
+2. Open [Workers](https://dash.cloudflare.com/?to=/:account/workers-and-pages/create) -> `Continue with GitHub` -> select your forked repository (`NodeWarden`) -> continue.
-   R2 is used by default. If R2 is unavailable for your account, you can use KV instead by changing the **deploy command** to `npm run deploy:kv`.
+3. R2 is used by default. If R2 is not enabled on your account, you can use KV instead by changing the **deploy command** to `npm run deploy:kv`.
+4. Deploy and open the generated URL.
 
 | Storage | Card required | Single attachment / Send file limit | Free tier |
 |---|---|---|---|
-| R2 | Yes | 100 MB (soft limit, can be adjusted) | 10 GB |
+| R2 | Yes | 100 MB (soft limit, adjustable) | 10 GB |
 | KV | No | 25 MiB (Cloudflare limit) | 1 GB |
 
 > [!TIP]
@@ -71,7 +72,6 @@ English: [`README.md`](./README.md)
 ```powershell
 git clone https://github.com/shuaiplus/NodeWarden.git
 cd NodeWarden
-
 npm install
 npx wrangler login
 
@@ -93,10 +93,10 @@ npm run dev:kv
 - Remote backup supports **WebDAV** and **E3**
 - When `Include attachments` is enabled:
 - the ZIP still contains only `db.json` and `manifest.json`
-  - real attachment files are stored separately under `attachments/`
+- actual attachment files are stored separately under `attachments/`
-  - later backups reuse existing attachments by stable blob name instead of uploading everything again
+- later backups reuse existing attachments by stable blob name instead of re-uploading everything every time
 - During remote restore:
-  - required attachment files are loaded from `attachments/`
+- required attachment files are loaded from `attachments/` on demand
 - missing attachments are skipped safely
 - skipped attachments do not leave broken rows in the restored database
 
@@ -110,7 +110,7 @@ Current supported import sources include:
 - Bitwarden CSV
 - Bitwarden vault + attachments ZIP
 - NodeWarden JSON
-- Multiple browser / password-manager formats visible in the web import selector
+- Multiple browser / password-manager formats available in the web import selector
 
 Current supported export formats include:
 
@@ -130,9 +130,9 @@ LGPL-3.0 License
 
 ## Credits
 
-- [Bitwarden](https://bitwarden.com/) - original design and clients
+- [Bitwarden](https://bitwarden.com/) - Original design and clients
-- [Vaultwarden](https://github.com/dani-garcia/vaultwarden) - server implementation reference
+- [Vaultwarden](https://github.com/dani-garcia/vaultwarden) - Server implementation reference
-- [Cloudflare Workers](https://workers.cloudflare.com/) - serverless platform
+- [Cloudflare Workers](https://workers.cloudflare.com/) - Serverless platform
 
 ---
 

migrations/0001_init.sql

@@ -59,6 +59,7 @@ CREATE TABLE IF NOT EXISTS ciphers (
 CREATE INDEX IF NOT EXISTS idx_ciphers_user_updated ON ciphers(user_id, updated_at);
 CREATE INDEX IF NOT EXISTS idx_ciphers_user_archived ON ciphers(user_id, archived_at);
 CREATE INDEX IF NOT EXISTS idx_ciphers_user_deleted ON ciphers(user_id, deleted_at);
+CREATE INDEX IF NOT EXISTS idx_ciphers_user_deleted_updated ON ciphers(user_id, deleted_at, updated_at);
 
 CREATE TABLE IF NOT EXISTS folders (
   id TEXT PRIMARY KEY,
@@ -106,6 +107,7 @@ CREATE TABLE IF NOT EXISTS sends (
 );
 CREATE INDEX IF NOT EXISTS idx_sends_user_updated ON sends(user_id, updated_at);
 CREATE INDEX IF NOT EXISTS idx_sends_user_deletion ON sends(user_id, deletion_date);
+CREATE INDEX IF NOT EXISTS idx_sends_user_updated_id ON sends(user_id, updated_at, id);
 
 CREATE TABLE IF NOT EXISTS refresh_tokens (
   token TEXT PRIMARY KEY,

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "nodewarden",
-  "version": "1.4.1",
+  "version": "1.4.3",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "nodewarden",
-      "version": "1.4.1",
+      "version": "1.4.3",
       "license": "LGPL-3.0",
       "dependencies": {
         "@dnd-kit/core": "^6.3.1",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "nodewarden",
-  "version": "1.4.1",
+  "version": "1.4.3",
   "description": "Minimal Bitwarden-compatible server running on Cloudflare Workers",
   "author": "shuaiplus",
   "license": "LGPL-3.0",

shared/app-version.ts

@@ -1 +1 @@
-export const APP_VERSION = '1.4.1';
+export const APP_VERSION = '1.4.3';

src/config/limits.ts

@@ -130,6 +130,9 @@
     // Max total items (folders + ciphers) allowed in a single import.
     // 单次导入允许的最大条目数（文件夹 + 密码项合计）。
     importItemLimit: 5000,
+    // Small fixed concurrency for blob/attachment batch cleanup work.
+    // 附件 / blob 批量清理时的保守并发数。
+    attachmentDeleteConcurrency: 4,
   },
   request: {
     // Hard body size limit for JSON API endpoints (bytes). File upload paths are exempt.

src/durable/notifications-hub.ts

@@ -1,3 +1,4 @@
+import { DurableObject } from 'cloudflare:workers';
 import type { Env } from '../types';
 
 const SIGNALR_RECORD_SEPARATOR = 0x1e;
@@ -5,11 +6,12 @@ const SIGNALR_HANDSHAKE_ACK = new Uint8Array([0x7b, 0x7d, SIGNALR_RECORD_SEPARAT
 const SIGNALR_UPDATE_TYPE_SYNC_VAULT = 5;
 const SIGNALR_UPDATE_TYPE_LOG_OUT = 11;
 const SIGNALR_UPDATE_TYPE_DEVICE_STATUS = 12;
-const SIGNALR_PING_INTERVAL_MS = 15_000;
+const SIGNALR_UPDATE_TYPE_BACKUP_RESTORE_PROGRESS = 13;
 
 type HubProtocol = 'json' | 'messagepack';
 
-interface ConnectionState {
+interface WsAttachment {
+  userId: string;
   handshakeComplete: boolean;
   protocol: HubProtocol;
   deviceIdentifier: string | null;
@@ -30,6 +32,12 @@ function encodeUtf8(value: string): Uint8Array {
   return new TextEncoder().encode(value);
 }
 
+function decodeIncomingMessage(data: string | ArrayBuffer | ArrayBufferView): string {
+  if (typeof data === 'string') return data;
+  if (data instanceof ArrayBuffer) return new TextDecoder().decode(new Uint8Array(data));
+  return new TextDecoder().decode(new Uint8Array(data.buffer, data.byteOffset, data.byteLength));
+}
+
 function encodeMsgPackInteger(value: number): Uint8Array {
   const normalized = Math.trunc(value);
   if (normalized >= 0 && normalized <= 0x7f) {
@@ -127,9 +135,8 @@ function frameSignalRBinary(payload: Uint8Array): Uint8Array {
 }
 
 function buildSignalRJsonInvocation(
-  userId: string,
   updateType: number,
-  revisionDate: string,
+  payload: Record<string, unknown>,
   contextId: string | null
 ): string {
   return JSON.stringify({
@@ -139,28 +146,20 @@ function buildSignalRJsonInvocation(
         {
           ContextId: contextId,
           Type: updateType,
-        Payload: {
+          Payload: payload,
-          UserId: userId,
-          Date: revisionDate,
-        },
         },
       ],
     }) + String.fromCharCode(SIGNALR_RECORD_SEPARATOR);
 }
 
-function buildSignalRJsonPing(): string {
-  return JSON.stringify({ type: 6 }) + String.fromCharCode(SIGNALR_RECORD_SEPARATOR);
-}
-
 function buildSignalRMessagePackInvocation(
-  userId: string,
   updateType: number,
-  revisionDate: string,
+  messagePayload: Record<string, unknown>,
   contextId: string | null
 ): Uint8Array {
   // SignalR MessagePack hub protocol uses an array-based invocation shape:
   // [type, headers, invocationId, target, arguments]
-  const payload = encodeMsgPack([
+  const encodedPayload = encodeMsgPack([
     1,
     {},
     null,
@@ -169,34 +168,22 @@ function buildSignalRMessagePackInvocation(
       {
         ContextId: contextId,
         Type: updateType,
-        Payload: {
+        Payload: messagePayload,
-          UserId: userId,
-          Date: new Date(revisionDate),
-        },
       },
     ],
   ]);
-  return frameSignalRBinary(payload);
+  return frameSignalRBinary(encodedPayload);
 }
 
-function buildSignalRMessagePackPing(): Uint8Array {
+export class NotificationsHub extends DurableObject<Env> {
-  return frameSignalRBinary(encodeMsgPack([6]));
+  constructor(ctx: DurableObjectState, env: Env) {
-}
+    super(ctx, env);
-
+    this.ctx.setWebSocketAutoResponse(
-function decodeIncomingMessage(data: string | ArrayBuffer | ArrayBufferView): string {
+      new WebSocketRequestResponsePair(
-  if (typeof data === 'string') return data;
+        JSON.stringify({ type: 6 }) + String.fromCharCode(SIGNALR_RECORD_SEPARATOR),
-  if (data instanceof ArrayBuffer) return new TextDecoder().decode(new Uint8Array(data));
+        JSON.stringify({ type: 6 }) + String.fromCharCode(SIGNALR_RECORD_SEPARATOR)
-  return new TextDecoder().decode(new Uint8Array(data.buffer, data.byteOffset, data.byteLength));
+      )
-}
+    );
-
-export class NotificationsHub {
-  private readonly connections = new Map<WebSocket, ConnectionState>();
-  private userId = '';
-  private pingTimer: ReturnType<typeof setInterval> | null = null;
-
-  constructor(private readonly state: DurableObjectState, private readonly env: Env) {
-    void this.state;
-    void this.env;
   }
 
   async fetch(request: Request): Promise<Response> {
@@ -209,13 +196,20 @@ export class NotificationsHub {
         contextId?: string | null;
         updateType?: number;
         targetDeviceIdentifier?: string | null;
+        payload?: Record<string, unknown> | null;
       } | null;
       const revisionDate = String(body?.revisionDate || '').trim() || new Date().toISOString();
-      this.userId = String(request.headers.get('X-NodeWarden-UserId') || body?.userId || this.userId).trim();
+      const userId = String(request.headers.get('X-NodeWarden-UserId') || body?.userId || '').trim();
       const contextId = String(body?.contextId || '').trim() || null;
       const updateType = Number(body?.updateType || SIGNALR_UPDATE_TYPE_SYNC_VAULT) || SIGNALR_UPDATE_TYPE_SYNC_VAULT;
       const targetDeviceIdentifier = String(body?.targetDeviceIdentifier || '').trim() || null;
-      this.broadcastMessage(updateType, revisionDate, contextId, targetDeviceIdentifier);
+      const payload = body?.payload && typeof body.payload === 'object'
+        ? body.payload
+        : {
+          UserId: userId,
+          Date: revisionDate,
+        };
+      this.broadcastMessage(updateType, payload, contextId, targetDeviceIdentifier);
       return new Response(null, { status: 204 });
     }
 
@@ -238,46 +232,27 @@ export class NotificationsHub {
 
     const requestUserId = String(url.searchParams.get('nw_uid') || '').trim();
     const requestDeviceIdentifier = String(url.searchParams.get('nw_did') || '').trim() || null;
-    if (requestUserId) {
-      this.userId = requestUserId;
-    }
 
-    if (!this.userId) {
+    if (!requestUserId) {
       return new Response('Unauthorized', { status: 401 });
     }
 
     const pair = new WebSocketPair();
     const client = pair[0];
     const server = pair[1];
-    server.accept();
 
-    this.connections.set(server, {
+    const tags: string[] = [];
+    if (requestDeviceIdentifier) {
+      tags.push(`device:${requestDeviceIdentifier}`);
+    }
+    this.ctx.acceptWebSocket(server, tags);
+
+    server.serializeAttachment({
+      userId: requestUserId,
       handshakeComplete: false,
       protocol: 'messagepack',
       deviceIdentifier: requestDeviceIdentifier,
-    });
+    } satisfies WsAttachment);
-    this.ensurePingLoop();
-
-    server.addEventListener('message', (event) => {
-      void this.handleSocketMessage(server, event.data);
-    });
-    server.addEventListener('close', () => {
-      const shouldBroadcast = !!this.connections.get(server)?.handshakeComplete;
-      this.connections.delete(server);
-      this.stopPingLoopIfIdle();
-      if (shouldBroadcast) this.broadcastDeviceStatus();
-    });
-    server.addEventListener('error', () => {
-      const shouldBroadcast = !!this.connections.get(server)?.handshakeComplete;
-      this.connections.delete(server);
-      this.stopPingLoopIfIdle();
-      if (shouldBroadcast) this.broadcastDeviceStatus();
-      try {
-        server.close(1011, 'Socket error');
-      } catch {
-        // ignore close races
-      }
-    });
 
     return new Response(null, {
       status: 101,
@@ -285,21 +260,21 @@ export class NotificationsHub {
     });
   }
 
-  private async handleSocketMessage(socket: WebSocket, rawData: string | ArrayBuffer | ArrayBufferView): Promise<void> {
+  async webSocketMessage(ws: WebSocket, message: string | ArrayBuffer | ArrayBufferView): Promise<void> {
-    const connection = this.connections.get(socket);
+    const attachment = ws.deserializeAttachment() as WsAttachment | null;
-    if (!connection) return;
+    if (!attachment) return;
 
-    if (!connection.handshakeComplete) {
+    if (!attachment.handshakeComplete) {
-      const text = decodeIncomingMessage(rawData);
+      const text = decodeIncomingMessage(message);
       const frames = text.split(String.fromCharCode(SIGNALR_RECORD_SEPARATOR)).filter(Boolean);
       for (const frame of frames) {
         try {
           const handshake = JSON.parse(frame) as { protocol?: string };
-          const protocol = handshake.protocol === 'json' ? 'json' : 'messagepack';
+          attachment.protocol = handshake.protocol === 'json' ? 'json' : 'messagepack';
-          connection.protocol = protocol;
+          attachment.handshakeComplete = true;
-          connection.handshakeComplete = true;
+          ws.serializeAttachment(attachment);
-          socket.send(SIGNALR_HANDSHAKE_ACK);
+          ws.send(SIGNALR_HANDSHAKE_ACK);
-          this.broadcastDeviceStatus();
+          this.broadcastDeviceStatus(attachment.userId);
           return;
         } catch {
           // Ignore malformed pre-handshake payloads.
@@ -307,89 +282,83 @@ export class NotificationsHub {
       }
       return;
     }
-  }
 
-  private ensurePingLoop(): void {
+    if (typeof message !== 'string') {
-    if (this.pingTimer !== null) return;
-    this.pingTimer = setInterval(() => {
-      this.broadcastPing();
-    }, SIGNALR_PING_INTERVAL_MS);
-  }
-
-  private stopPingLoopIfIdle(): void {
-    if (this.connections.size > 0 || this.pingTimer === null) return;
-    clearInterval(this.pingTimer);
-    this.pingTimer = null;
-  }
-
-  private broadcastPing(): void {
-    if (this.connections.size === 0) {
-      this.stopPingLoopIfIdle();
-      return;
-    }
-
-    for (const [socket, connection] of this.connections) {
-      if (!connection.handshakeComplete) continue;
       try {
-        if (connection.protocol === 'json') {
+        ws.send(message);
-          socket.send(buildSignalRJsonPing());
-        } else {
-          socket.send(buildSignalRMessagePackPing());
-        }
       } catch {
-        this.connections.delete(socket);
+        // ignore send errors on echo
-        try {
-          socket.close(1011, 'Ping send failed');
-        } catch {
-          // ignore close races
       }
     }
   }
 
-    this.stopPingLoopIfIdle();
+  async webSocketClose(ws: WebSocket, code: number, reason: string, wasClean: boolean): Promise<void> {
+    const attachment = ws.deserializeAttachment() as WsAttachment | null;
+    const shouldBroadcast = !!attachment?.handshakeComplete;
+    if (shouldBroadcast && attachment?.userId) {
+      this.broadcastDeviceStatus(attachment.userId);
+    }
+  }
+
+  async webSocketError(ws: WebSocket, error: unknown): Promise<void> {
+    const attachment = ws.deserializeAttachment() as WsAttachment | null;
+    const shouldBroadcast = !!attachment?.handshakeComplete;
+    if (shouldBroadcast && attachment?.userId) {
+      this.broadcastDeviceStatus(attachment.userId);
+    }
   }
 
   private getOnlineDeviceIdentifiers(): string[] {
     const out = new Set<string>();
-    for (const connection of this.connections.values()) {
+    for (const ws of this.ctx.getWebSockets()) {
-      if (!connection.handshakeComplete || !connection.deviceIdentifier) continue;
+      const attachment = ws.deserializeAttachment() as WsAttachment | null;
-      out.add(connection.deviceIdentifier);
+      if (!attachment?.handshakeComplete || !attachment.deviceIdentifier) continue;
+      out.add(attachment.deviceIdentifier);
     }
     return Array.from(out);
   }
 
   private broadcastMessage(
     updateType: number,
-    revisionDate: string,
+    payload: Record<string, unknown>,
     contextId: string | null,
     targetDeviceIdentifier: string | null
   ): void {
-    if (!this.userId || this.connections.size === 0) return;
+    const sockets = targetDeviceIdentifier
+      ? this.ctx.getWebSockets(`device:${targetDeviceIdentifier}`)
+      : this.ctx.getWebSockets();
 
-    for (const [socket, connection] of this.connections) {
+    if (sockets.length === 0) return;
-      if (!connection.handshakeComplete) continue;
+
-      if (targetDeviceIdentifier && connection.deviceIdentifier !== targetDeviceIdentifier) continue;
+    for (const ws of sockets) {
+      const attachment = ws.deserializeAttachment() as WsAttachment | null;
+      if (!attachment?.handshakeComplete) continue;
       try {
-        if (connection.protocol === 'json') {
+        if (attachment.protocol === 'json') {
-          socket.send(buildSignalRJsonInvocation(this.userId, updateType, revisionDate, contextId));
+          ws.send(buildSignalRJsonInvocation(updateType, payload, contextId));
         } else {
-          socket.send(buildSignalRMessagePackInvocation(this.userId, updateType, revisionDate, contextId));
+          ws.send(buildSignalRMessagePackInvocation(updateType, payload, contextId));
         }
       } catch {
-        this.connections.delete(socket);
         try {
-          socket.close(1011, 'Notification send failed');
+          ws.close(1011, 'Notification send failed');
         } catch {
           // ignore close races
         }
       }
     }
-
-    this.stopPingLoopIfIdle();
   }
 
-  private broadcastDeviceStatus(): void {
+  private broadcastDeviceStatus(userId: string): void {
-    this.broadcastMessage(SIGNALR_UPDATE_TYPE_DEVICE_STATUS, new Date().toISOString(), null, null);
+    this.broadcastMessage(
+      SIGNALR_UPDATE_TYPE_DEVICE_STATUS,
+      {
+        UserId: userId,
+        Date: new Date().toISOString(),
+      },
+      null,
+      null
+    );
   }
 }
 
@@ -445,9 +414,79 @@ async function notifyUserUpdate(
         contextId: contextId || null,
         updateType,
         targetDeviceIdentifier: targetDeviceIdentifier || null,
+        payload: {
+          UserId: userId,
+          Date: revisionDate,
+        },
       }),
     });
   } catch (error) {
     console.error('Failed to broadcast realtime notification:', error);
   }
 }
+
+export async function notifyUserBackupProgress(
+  env: Env,
+  userId: string,
+  progress: {
+    operation: 'backup-restore' | 'backup-export' | 'backup-remote-run';
+    source?: 'local' | 'remote';
+    step: string;
+    fileName: string;
+    stageTitle?: string;
+    stageDetail?: string;
+    replaceExisting?: boolean;
+    done?: boolean;
+    ok?: boolean;
+    error?: string | null;
+    timestamp?: string;
+  },
+  targetDeviceIdentifier?: string | null
+): Promise<void> {
+  const revisionDate = progress.timestamp || new Date().toISOString();
+  try {
+    const id = env.NOTIFICATIONS_HUB.idFromName(userId);
+    const stub = env.NOTIFICATIONS_HUB.get(id);
+    await stub.fetch('https://notifications/internal/notify', {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+        'X-NodeWarden-UserId': userId,
+      },
+      body: JSON.stringify({
+        revisionDate,
+        contextId: null,
+        updateType: SIGNALR_UPDATE_TYPE_BACKUP_RESTORE_PROGRESS,
+        targetDeviceIdentifier: targetDeviceIdentifier || null,
+        payload: {
+          UserId: userId,
+          Date: revisionDate,
+          ...progress,
+        },
+      }),
+    });
+  } catch (error) {
+    console.error('Failed to broadcast backup progress:', error);
+  }
+}
+
+export async function notifyUserBackupRestoreProgress(
+  env: Env,
+  userId: string,
+  progress: {
+    operation: 'backup-restore';
+    source: 'local' | 'remote';
+    step: string;
+    fileName: string;
+    stageTitle?: string;
+    stageDetail?: string;
+    replaceExisting?: boolean;
+    done?: boolean;
+    ok?: boolean;
+    error?: string | null;
+    timestamp?: string;
+  },
+  targetDeviceIdentifier?: string | null
+): Promise<void> {
+  return notifyUserBackupProgress(env, userId, progress, targetDeviceIdentifier);
+}

src/handlers/accounts.ts

@@ -87,6 +87,7 @@ async function verifyUserSecret(
 
 function toProfile(user: User, env: Env): ProfileResponse {
   void env;
+  const accountKeys = buildAccountKeys(user);
   return {
     id: user.id,
     name: user.name,
@@ -100,7 +101,7 @@ function toProfile(user: User, env: Env): ProfileResponse {
     twoFactorEnabled: !!user.totpSecret,
     key: user.key,
     privateKey: user.privateKey,
-    accountKeys: buildAccountKeys(user),
+    accountKeys,
     securityStamp: user.securityStamp || user.id,
     organizations: [],
     providers: [],

src/handlers/attachments.ts

@@ -10,7 +10,7 @@ import {
   verifyAttachmentUploadToken,
   verifyFileDownloadToken,
 } from '../utils/jwt';
-import { cipherToResponse, shouldOmitPasskeysForResponse } from './ciphers';
+import { cipherToResponse } from './ciphers';
 import { LIMITS } from '../config/limits';
 import { readActingDeviceIdentifier } from '../utils/device';
 import {
@@ -38,6 +38,18 @@ function formatSize(bytes: number): string {
   return `${(bytes / (1024 * 1024 * 1024)).toFixed(2)} GB`;
 }
 
+async function runWithConcurrency<T>(
+  items: T[],
+  concurrency: number,
+  worker: (item: T) => Promise<void>
+): Promise<void> {
+  if (items.length === 0) return;
+  const limit = Math.max(1, concurrency);
+  for (let index = 0; index < items.length; index += limit) {
+    await Promise.all(items.slice(index, index + limit).map(worker));
+  }
+}
+
 async function processAttachmentUpload(
   request: Request,
   env: Env,
@@ -158,9 +170,7 @@ export async function handleCreateAttachment(
     attachmentId: attachmentId,
     url: buildDirectUploadUrl(request, `/api/ciphers/${cipherId}/attachment/${attachmentId}`, uploadToken),
     fileUploadType: 1,
-    cipherResponse: cipherToResponse(updatedCipher!, attachments, {
+    cipherResponse: cipherToResponse(updatedCipher!, attachments),
-      omitFido2Credentials: shouldOmitPasskeysForResponse(request),
-    }),
   });
 }
 
@@ -372,9 +382,7 @@ export async function handleDeleteAttachment(
   const attachments = await storage.getAttachmentsByCipher(cipherId);
 
   return jsonResponse({
-    cipher: cipherToResponse(updatedCipher!, attachments, {
+    cipher: cipherToResponse(updatedCipher!, attachments),
-      omitFido2Credentials: shouldOmitPasskeysForResponse(request),
-    }),
   });
 }
 
@@ -385,10 +393,9 @@ export async function deleteAllAttachmentsForCipher(
 ): Promise<void> {
   const storage = new StorageService(env.DB);
   const attachments = await storage.getAttachmentsByCipher(cipherId);
-
+  await runWithConcurrency(attachments, LIMITS.performance.attachmentDeleteConcurrency, async (attachment) => {
-  for (const attachment of attachments) {
     const path = getAttachmentObjectKey(cipherId, attachment.id);
     await deleteBlobObject(env, path);
     await storage.deleteAttachment(attachment.id);
-  }
+  });
 }

src/handlers/backup.ts

@@ -1,7 +1,12 @@
 import type { Env, User } from '../types';
 import { errorResponse, jsonResponse } from '../utils/response';
 import { generateUUID } from '../utils/uuid';
-import { type BackupArchiveBundle, buildBackupArchive } from '../services/backup-archive';
+import {
+  type BackupArchiveBundle,
+  buildBackupArchive,
+  inspectBackupArchiveFileNameChecksum,
+  verifyBackupArchiveFileNameChecksum,
+} from '../services/backup-archive';
 import {
   type BackupDestinationRecord,
   type BackupSettingsInput,
@@ -17,19 +22,25 @@ import {
   requireBackupDestination,
   saveBackupSettings,
 } from '../services/backup-config';
-import { type BackupImportExecutionResult, importBackupArchiveBytes, importRemoteBackupArchiveBytes } from '../services/backup-import';
 import {
+  type BackupImportExecutionResult,
+  type BackupRestoreProgressReporter,
+  importBackupArchiveBytes,
+  importRemoteBackupArchiveBytes,
+} from '../services/backup-import';
+import {
+  type RemoteBackupTransferSession,
+  createRemoteBackupTransferSession,
   deleteRemoteBackupFile,
   downloadRemoteBackupFile,
   ensureRemoteRestoreCandidate,
   listRemoteBackupEntries,
   pruneRemoteBackupArchives,
-  remoteBackupFileExists,
-  uploadRemoteBackupFile,
   uploadBackupArchive,
 } from '../services/backup-uploader';
 import { StorageService } from '../services/storage';
 import { getBlobObject } from '../services/blob-store';
+import { notifyUserBackupProgress, notifyUserBackupRestoreProgress } from '../durable/notifications-hub';
 
 function isAdmin(user: User): boolean {
   return user.role === 'admin' && user.status === 'active';
@@ -81,13 +92,86 @@ function ensureBackupBlobName(value: string): string {
   return parts.join('/');
 }
 
+const REMOTE_ATTACHMENT_INDEX_PATH = 'attachments/.nodewarden-attachment-index.v1.json';
+
+interface RemoteAttachmentIndexPayload {
+  version: 1;
+  blobs: Record<string, { sizeBytes: number; updatedAt: string }>;
+}
+
+async function loadRemoteAttachmentIndex(session: RemoteBackupTransferSession): Promise<Map<string, number>> {
+  try {
+    const file = await session.download(REMOTE_ATTACHMENT_INDEX_PATH);
+    const payload = JSON.parse(new TextDecoder().decode(file.bytes)) as RemoteAttachmentIndexPayload;
+    if (payload?.version !== 1 || !payload.blobs || typeof payload.blobs !== 'object') {
+      return new Map<string, number>();
+    }
+    return new Map(
+      Object.entries(payload.blobs)
+        .filter(([key, value]) => !!String(key || '').trim() && Number.isFinite(Number(value?.sizeBytes || 0)))
+        .map(([key, value]) => [key, Number(value.sizeBytes || 0)])
+    );
+  } catch (error) {
+    const message = error instanceof Error ? error.message : String(error);
+    const normalized = message.toLowerCase();
+    // Some WebDAV providers return non-standard codes such as 530 when the
+    // attachment index does not exist yet. Treat these "missing file" style
+    // responses as an empty index so first-time incremental backups can proceed.
+    if (
+      normalized.includes('404')
+      || normalized.includes('403')
+      || normalized.includes('530')
+      || normalized.includes('not found')
+      || normalized.includes('file not found')
+      || normalized.includes('does not exist')
+      || normalized.includes('please select a backup file')
+    ) {
+      return new Map<string, number>();
+    }
+    throw error;
+  }
+}
+
+async function saveRemoteAttachmentIndex(
+  session: RemoteBackupTransferSession,
+  index: Map<string, number>
+): Promise<void> {
+  const payload: RemoteAttachmentIndexPayload = {
+    version: 1,
+    blobs: Object.fromEntries(
+      Array.from(index.entries()).map(([blobName, sizeBytes]) => [
+        blobName,
+        {
+          sizeBytes,
+          updatedAt: new Date().toISOString(),
+        },
+      ])
+    ),
+  };
+  const bytes = new TextEncoder().encode(JSON.stringify(payload));
+  await session.putFile(REMOTE_ATTACHMENT_INDEX_PATH, bytes, {
+    contentType: 'application/json; charset=utf-8',
+  });
+}
+
 async function executeConfiguredBackup(
   env: Env,
   storage: StorageService,
   actorUserId: string | null,
   trigger: 'manual' | 'scheduled',
-  destinationId?: string | null
+  destinationId?: string | null,
+  progress?: ((event: {
+    operation: 'backup-remote-run';
+    step: string;
+    fileName: string;
+    stageTitle: string;
+    stageDetail: string;
+    done?: boolean;
+    ok?: boolean;
+    error?: string | null;
+  }) => Promise<void>) | null
 ): Promise<{ fileName: string; fileSize: number; remotePath: string; provider: string }> {
+  const maxArchiveUploadAttempts = 3;
   const currentSettings = await loadBackupSettings(storage, env, 'UTC');
   const destination = requireBackupDestination(currentSettings, destinationId);
 
@@ -99,25 +183,110 @@ async function executeConfiguredBackup(
   await saveBackupSettings(storage, env, currentSettings);
 
   try {
+    await progress?.({
+      operation: 'backup-remote-run',
+      step: 'remote_run_prepare',
+      fileName: '',
+      stageTitle: 'txt_backup_remote_run_progress_prepare_title',
+      stageDetail: 'txt_backup_remote_run_progress_prepare_detail',
+    });
     const archive = await buildBackupArchive(env, now, {
       includeAttachments: destination.includeAttachments,
+      timeZone: destination.schedule.timezone,
+      progress: progress
+        ? async (event) => {
+          if (event.step === 'archive_ready') {
+            return;
+          }
+          await progress({
+            operation: 'backup-remote-run',
+            step: `remote_run_${event.step}`,
+            fileName: event.fileName || '',
+            stageTitle: event.stageTitle,
+            stageDetail: event.stageDetail,
           });
+        }
+        : undefined,
+    });
+    await progress?.({
+      operation: 'backup-remote-run',
+      step: 'remote_run_sync_attachments',
+      fileName: archive.fileName,
+      stageTitle: 'txt_backup_remote_run_progress_sync_attachments_title',
+      stageDetail: destination.includeAttachments
+        ? 'txt_backup_remote_run_progress_sync_attachments_detail'
+        : 'txt_backup_remote_run_progress_sync_attachments_skipped_detail',
+    });
+    const remoteSession = createRemoteBackupTransferSession(destination);
+    const remoteAttachmentIndex = await loadRemoteAttachmentIndex(remoteSession);
+    let attachmentIndexChanged = false;
     for (const attachment of archive.manifest.attachmentBlobs || []) {
+      if (remoteAttachmentIndex.get(attachment.blobName) === attachment.sizeBytes) {
+        continue;
+      }
       const remotePath = `attachments/${attachment.blobName}`;
-      if (await remoteBackupFileExists(destination, remotePath)) continue;
       const object = await getBlobObject(env, attachment.blobName);
       if (!object) {
         throw new Error(`Attachment blob missing for ${attachment.blobName}`);
       }
       const bytes = new Uint8Array(await new Response(object.body).arrayBuffer());
-      await uploadRemoteBackupFile(destination, remotePath, bytes, {
+      await remoteSession.putFile(remotePath, bytes, {
         contentType: object.contentType,
       });
+      remoteAttachmentIndex.set(attachment.blobName, attachment.sizeBytes);
+      attachmentIndexChanged = true;
+    }
+    if (attachmentIndexChanged) {
+      await saveRemoteAttachmentIndex(remoteSession, remoteAttachmentIndex);
+    }
+    let upload: Awaited<ReturnType<typeof uploadBackupArchive>> | null = null;
+    for (let attempt = 1; attempt <= maxArchiveUploadAttempts; attempt++) {
+      await progress?.({
+        operation: 'backup-remote-run',
+        step: 'remote_run_upload_archive',
+        fileName: archive.fileName,
+        stageTitle: 'txt_backup_remote_run_progress_upload_title',
+        stageDetail: 'txt_backup_remote_run_progress_upload_detail',
+      });
+      upload = await remoteSession.uploadArchive(archive.bytes, archive.fileName);
+      try {
+        await progress?.({
+          operation: 'backup-remote-run',
+          step: 'remote_run_verify_archive',
+          fileName: archive.fileName,
+          stageTitle: 'txt_backup_remote_run_progress_verify_title',
+          stageDetail: 'txt_backup_remote_run_progress_verify_detail',
+        });
+        const remoteFile = await remoteSession.download(archive.fileName);
+        const checksumOk = await verifyBackupArchiveFileNameChecksum(remoteFile.bytes, archive.fileName);
+        if (!checksumOk) {
+          throw new Error('Remote backup ZIP checksum verification failed');
+        }
+        if (remoteFile.bytes.byteLength !== archive.bytes.byteLength) {
+          throw new Error('Remote backup ZIP size verification failed');
+        }
+        break;
+      } catch (error) {
+        await remoteSession.deleteFile(archive.fileName).catch(() => undefined);
+        if (attempt === maxArchiveUploadAttempts) {
+          const message = error instanceof Error ? error.message : 'Remote backup ZIP verification failed';
+          throw new Error(`Backup archive upload verification failed after ${maxArchiveUploadAttempts} attempts: ${message}`);
+        }
+      }
+    }
+    if (!upload) {
+      throw new Error('Backup archive upload failed');
     }
-    const upload = await uploadBackupArchive(destination, archive.bytes, archive.fileName);
     let prunedFileCount = 0;
     let pruneErrorMessage: string | null = null;
     try {
+      await progress?.({
+        operation: 'backup-remote-run',
+        step: 'remote_run_cleanup',
+        fileName: archive.fileName,
+        stageTitle: 'txt_backup_remote_run_progress_cleanup_title',
+        stageDetail: 'txt_backup_remote_run_progress_cleanup_detail',
+      });
       prunedFileCount = await pruneRemoteBackupArchives(destination, destination.schedule.retentionCount, archive.fileName);
     } catch (error) {
       pruneErrorMessage = error instanceof Error ? error.message : 'Old backup cleanup failed';
@@ -137,10 +306,21 @@ async function executeConfiguredBackup(
       remotePath: upload.remotePath,
       fileName: archive.fileName,
       fileBytes: archive.bytes.byteLength,
+      uploadVerificationAttempts: maxArchiveUploadAttempts,
       prunedFileCount,
       pruneError: pruneErrorMessage,
     });
 
+    await progress?.({
+      operation: 'backup-remote-run',
+      step: 'remote_run_complete',
+      fileName: archive.fileName,
+      stageTitle: 'txt_backup_remote_run_progress_complete_title',
+      stageDetail: 'txt_backup_remote_run_progress_complete_detail',
+      done: true,
+      ok: true,
+    });
+
     return {
       fileName: archive.fileName,
       fileSize: archive.bytes.byteLength,
@@ -156,6 +336,16 @@ async function executeConfiguredBackup(
       ...getBackupDestinationSummary(destination),
       error: destination.runtime.lastErrorMessage,
     });
+    await progress?.({
+      operation: 'backup-remote-run',
+      step: 'remote_run_failed',
+      fileName: '',
+      stageTitle: 'txt_backup_remote_run_progress_failed_title',
+      stageDetail: 'txt_backup_remote_run_progress_failed_detail',
+      done: true,
+      ok: false,
+      error: destination.runtime.lastErrorMessage,
+    });
     throw error;
   }
 }
@@ -170,13 +360,35 @@ function toImportStatusCode(message: string): number {
 
 async function runImportAndAudit(
   env: Env,
+  request: Request,
   actorUser: User,
   archiveBytes: Uint8Array,
+  fileName: string,
   replaceExisting: boolean,
   metadata: Record<string, unknown>
 ): Promise<BackupImportExecutionResult> {
   const storage = new StorageService(env.DB);
-  const imported = await importBackupArchiveBytes(archiveBytes, env, actorUser.id, replaceExisting);
+  const targetDeviceIdentifier = String(request.headers.get('X-NodeWarden-Acting-Device-Id') || '').trim() || null;
+  const progress: BackupRestoreProgressReporter = async (event) => {
+    await notifyUserBackupRestoreProgress(
+      env,
+      actorUser.id,
+      {
+        operation: 'backup-restore',
+        ...event,
+      },
+      targetDeviceIdentifier
+    );
+  };
+  await progress({
+    source: 'local',
+    step: 'local_upload_received',
+    fileName,
+    stageTitle: 'txt_backup_restore_progress_local_upload_title',
+    stageDetail: 'txt_backup_restore_progress_local_upload_detail',
+    replaceExisting,
+  });
+  const imported = await importBackupArchiveBytes(archiveBytes, env, actorUser.id, replaceExisting, progress, fileName);
   await writeAuditLog(storage, imported.auditActorUserId, 'admin.backup.import', 'backup', null, {
     users: imported.result.imported.users,
     ciphers: imported.result.imported.ciphers,
@@ -309,7 +521,20 @@ export async function handleRunAdminConfiguredBackup(request: Request, env: Env,
       return errorResponse('Backup run payload is invalid', 400);
     }
 
-    const result = await executeConfiguredBackup(env, storage, actorUser.id, 'manual', body?.destinationId || null);
+    const targetDeviceIdentifier = String(request.headers.get('X-NodeWarden-Acting-Device-Id') || '').trim() || null;
+    const progress = async (event: {
+      operation: 'backup-remote-run';
+      step: string;
+      fileName: string;
+      stageTitle: string;
+      stageDetail: string;
+      done?: boolean;
+      ok?: boolean;
+      error?: string | null;
+    }) => {
+      await notifyUserBackupProgress(env, actorUser.id, event, targetDeviceIdentifier);
+    };
+    const result = await executeConfiguredBackup(env, storage, actorUser.id, 'manual', body?.destinationId || null, progress);
     const settings = await loadBackupSettings(storage, env, 'UTC');
     return jsonResponse({
       object: 'backup-run',
@@ -369,6 +594,29 @@ export async function handleDownloadAdminRemoteBackup(request: Request, env: Env
   }
 }
 
+export async function handleInspectAdminRemoteBackup(request: Request, env: Env, actorUser: User): Promise<Response> {
+  if (!isAdmin(actorUser)) return errorResponse('Forbidden', 403);
+
+  const storage = new StorageService(env.DB);
+  try {
+    const settings = await loadBackupSettings(storage, env, 'UTC');
+    const url = new URL(request.url);
+    const path = ensureRemoteRestoreCandidate(url.searchParams.get('path') || '');
+    const destination = requireBackupDestination(settings, url.searchParams.get('destinationId') || null);
+    const remoteFile = await downloadRemoteBackupFile(destination, path);
+    const integrity = await inspectBackupArchiveFileNameChecksum(remoteFile.bytes, remoteFile.fileName || path);
+    return jsonResponse({
+      object: 'backup-remote-integrity',
+      destinationId: destination.id,
+      path,
+      fileName: remoteFile.fileName || path.split('/').pop() || path,
+      integrity,
+    });
+  } catch (error) {
+    return errorResponse(error instanceof Error ? error.message : 'Remote backup integrity inspection failed', 409);
+  }
+}
+
 export async function handleDeleteAdminRemoteBackup(request: Request, env: Env, actorUser: User): Promise<Response> {
   if (!isAdmin(actorUser)) return errorResponse('Forbidden', 403);
 
@@ -392,7 +640,7 @@ export async function handleDeleteAdminRemoteBackup(request: Request, env: Env,
 export async function handleRestoreAdminRemoteBackup(request: Request, env: Env, actorUser: User): Promise<Response> {
   if (!isAdmin(actorUser)) return errorResponse('Forbidden', 403);
 
-  let body: { destinationId?: string; path?: string; replaceExisting?: boolean };
+  let body: { destinationId?: string; path?: string; replaceExisting?: boolean; allowChecksumMismatch?: boolean };
   try {
     body = await request.json<{ destinationId?: string; path?: string; replaceExisting?: boolean }>();
   } catch {
@@ -404,7 +652,39 @@ export async function handleRestoreAdminRemoteBackup(request: Request, env: Env,
     const settings = await loadBackupSettings(storage, env, 'UTC');
     const destination = requireBackupDestination(settings, body.destinationId || null);
     const path = ensureRemoteRestoreCandidate(String(body.path || ''));
+    const targetDeviceIdentifier = String(request.headers.get('X-NodeWarden-Acting-Device-Id') || '').trim() || null;
+    const restoreFileNameFromPath = path.split('/').pop() || path;
+    await notifyUserBackupRestoreProgress(
+      env,
+      actorUser.id,
+      {
+        operation: 'backup-restore',
+        source: 'remote',
+        step: 'remote_fetch_archive',
+        fileName: restoreFileNameFromPath,
+        stageTitle: 'txt_backup_restore_progress_remote_fetch_title',
+        stageDetail: 'txt_backup_restore_progress_remote_fetch_detail',
+        replaceExisting: !!body.replaceExisting,
+      },
+      targetDeviceIdentifier
+    );
     const remoteFile = await downloadRemoteBackupFile(destination, path);
+    const checksumOk = await verifyBackupArchiveFileNameChecksum(remoteFile.bytes, remoteFile.fileName || path);
+    if (!checksumOk && !body.allowChecksumMismatch) {
+      return errorResponse('Remote backup file checksum does not match its filename', 400);
+    }
+    const restoreFileName = remoteFile.fileName || path.split('/').pop() || path;
+    const progress: BackupRestoreProgressReporter = async (event) => {
+      await notifyUserBackupRestoreProgress(
+        env,
+        actorUser.id,
+        {
+          operation: 'backup-restore',
+          ...event,
+        },
+        targetDeviceIdentifier
+      );
+    };
     const imported = await (async () => {
       const storage = new StorageService(env.DB);
       const result = await importRemoteBackupArchiveBytes(
@@ -413,12 +693,13 @@ export async function handleRestoreAdminRemoteBackup(request: Request, env: Env,
         actorUser.id,
         !!body.replaceExisting,
         {
-          hasAttachment: async (blobName) => remoteBackupFileExists(destination, `attachments/${blobName}`),
             loadAttachment: async (blobName) => {
               const file = await downloadRemoteBackupFile(destination, `attachments/${blobName}`).catch(() => null);
               return file?.bytes || null;
             },
-        }
+        },
+        progress,
+        restoreFileName
       );
       await writeAuditLog(storage, result.auditActorUserId, 'admin.backup.import', 'backup', null, {
         users: result.result.imported.users,
@@ -431,6 +712,7 @@ export async function handleRestoreAdminRemoteBackup(request: Request, env: Env,
         remotePath: path,
         bytes: remoteFile.bytes.byteLength,
         trigger: 'remote',
+        checksumMismatchAccepted: !checksumOk,
       });
       return result;
     })();
@@ -445,6 +727,7 @@ export async function handleAdminExportBackup(request: Request, env: Env, actorU
   if (!isAdmin(actorUser)) return errorResponse('Forbidden', 403);
 
   const storage = new StorageService(env.DB);
+  const targetDeviceIdentifier = String(request.headers.get('X-NodeWarden-Acting-Device-Id') || '').trim() || null;
   let body: { includeAttachments?: boolean } | null = null;
   try {
     if ((request.headers.get('Content-Type') || '').includes('application/json')) {
@@ -455,11 +738,49 @@ export async function handleAdminExportBackup(request: Request, env: Env, actorU
   }
   let archive: BackupArchiveBundle;
   try {
+    const progress = async (event: {
+      step: string;
+      fileName?: string;
+      stageTitle: string;
+      stageDetail: string;
+      includeAttachments: boolean;
+    }) => {
+      await notifyUserBackupProgress(
+        env,
+        actorUser.id,
+        {
+          operation: 'backup-export',
+          source: 'local',
+          step: `export_${event.step}`,
+          fileName: event.fileName || '',
+          stageTitle: event.stageTitle,
+          stageDetail: event.stageDetail,
+        },
+        targetDeviceIdentifier
+      );
+    };
     archive = await buildBackupArchive(env, new Date(), {
       includeAttachments: !!body?.includeAttachments,
+      progress,
     });
   } catch (error) {
     const message = error instanceof Error ? error.message : 'Backup export failed';
+    await notifyUserBackupProgress(
+      env,
+      actorUser.id,
+      {
+        operation: 'backup-export',
+        source: 'local',
+        step: 'export_failed',
+        fileName: '',
+        stageTitle: 'txt_backup_export_progress_failed_title',
+        stageDetail: 'txt_backup_export_progress_failed_detail',
+        done: true,
+        ok: false,
+        error: message,
+      },
+      targetDeviceIdentifier
+    );
     return errorResponse(message, message.includes('blob missing') ? 409 : 500);
   }
 
@@ -520,6 +841,7 @@ export async function handleAdminImportBackup(request: Request, env: Env, actorU
   }
 
   const replaceExisting = String(formData.get('replaceExisting') || '').trim() === '1';
+  const allowChecksumMismatch = String(formData.get('allowChecksumMismatch') || '').trim() === '1';
   let archiveBytes: Uint8Array;
   try {
     archiveBytes = new Uint8Array(await (file as { arrayBuffer(): Promise<ArrayBuffer> }).arrayBuffer());
@@ -528,9 +850,15 @@ export async function handleAdminImportBackup(request: Request, env: Env, actorU
   }
 
   try {
-    const imported = await runImportAndAudit(env, actorUser, archiveBytes, replaceExisting, {
+    const fileName = 'name' in file ? String((file as File).name || '') : '';
+    const checksumOk = await verifyBackupArchiveFileNameChecksum(archiveBytes, fileName);
+    if (!checksumOk && !allowChecksumMismatch) {
+      return errorResponse('Backup file checksum does not match its filename', 400);
+    }
+    const imported = await runImportAndAudit(env, request, actorUser, archiveBytes, fileName || 'nodewarden_backup.zip', replaceExisting, {
       trigger: 'local',
       bytes: archiveBytes.byteLength,
+      checksumMismatchAccepted: !checksumOk,
     });
     return jsonResponse(imported.result);
   } catch (error) {

src/handlers/ciphers.ts

@@ -7,6 +7,32 @@ import { deleteAllAttachmentsForCipher } from './attachments';
 import { parsePagination, encodeContinuationToken } from '../utils/pagination';
 import { readActingDeviceIdentifier } from '../utils/device';
 
+function normalizeOptionalId(value: unknown): string | null {
+  if (value == null) return null;
+  const normalized = String(value).trim();
+  return normalized ? normalized : null;
+}
+
+function mergeCipherNestedObject<T>(
+  existingValue: T | null | undefined,
+  incomingValue: unknown
+): T | null {
+  if (incomingValue === undefined) {
+    return (existingValue ?? null) as T | null;
+  }
+  if (incomingValue === null || typeof incomingValue !== 'object' || Array.isArray(incomingValue)) {
+    return incomingValue as T | null;
+  }
+  const existingObject =
+    existingValue && typeof existingValue === 'object' && !Array.isArray(existingValue)
+      ? (existingValue as Record<string, unknown>)
+      : {};
+  return {
+    ...existingObject,
+    ...(incomingValue as Record<string, unknown>),
+  } as T;
+}
+
 async function notifyVaultSyncForRequest(
   request: Request,
   env: Env,
@@ -47,6 +73,7 @@ function syncCipherComputedAliases(cipher: Cipher): Cipher {
 function normalizeCipherForStorage(cipher: Cipher): Cipher {
   cipher.login = normalizeCipherLoginForStorage(cipher.login);
   cipher.sshKey = normalizeCipherSshKeyForCompatibility(cipher.sshKey);
+  cipher.folderId = normalizeOptionalId(cipher.folderId);
   const hasArchivedAt = Object.prototype.hasOwnProperty.call(cipher as object, 'archivedAt');
   cipher.archivedAt = hasArchivedAt
     ? normalizeCipherTimestamp(cipher.archivedAt) ?? null
@@ -54,80 +81,18 @@ function normalizeCipherForStorage(cipher: Cipher): Cipher {
   return syncCipherComputedAliases(cipher);
 }
 
-function looksLikeCipherString(value: unknown): boolean {
-  return /^\d+\.[A-Za-z0-9+/=]+\|[A-Za-z0-9+/=]+(?:\|[A-Za-z0-9+/=]+)?$/.test(String(value || '').trim());
-}
-
-export function shouldOmitPasskeysForResponse(request: Request | null | undefined): boolean {
-  const userAgent = String(request?.headers.get('user-agent') || '').toLowerCase();
-  if (!userAgent) return false;
-
-  // Temporary compatibility fallback:
-  // mobile clients expect official EncString payloads for most FIDO2 fields.
-  // Keep passkeys available everywhere, but suppress only legacy malformed data
-  // for mobile clients so newly-saved credentials can flow through unchanged.
-  return (
-    userAgent.includes('android') ||
-    userAgent.includes('iphone') ||
-    userAgent.includes('ipad') ||
-    userAgent.includes('ios')
-  );
-}
-
 export function normalizeCipherLoginForStorage(login: any): any {
   if (!login || typeof login !== 'object') return login ?? null;
-
   return {
     ...login,
     fido2Credentials: Array.isArray(login.fido2Credentials) ? login.fido2Credentials : null,
   };
 }
 
-export function normalizeCipherLoginForCompatibility(
+export function normalizeCipherLoginForCompatibility(login: any): any {
-  login: any,
-  options?: { omitFido2Credentials?: boolean }
-): any {
   const normalized = normalizeCipherLoginForStorage(login);
   if (!normalized || typeof normalized !== 'object') return normalized ?? null;
-  if (!options?.omitFido2Credentials) return normalized;
+  return normalized;
-
-  const credentials = Array.isArray(normalized.fido2Credentials) ? normalized.fido2Credentials : null;
-  if (!credentials?.length) return normalized;
-
-  const hasMalformedCredential = credentials.some((credential: any) => {
-    if (!credential || typeof credential !== 'object') return true;
-    const requiredEncryptedFields = [
-      credential.credentialId,
-      credential.keyType,
-      credential.keyAlgorithm,
-      credential.keyCurve,
-      credential.keyValue,
-      credential.rpId,
-      credential.counter,
-      credential.discoverable,
-    ];
-    const optionalEncryptedFields = [
-      credential.userHandle,
-      credential.userName,
-      credential.rpName,
-      credential.userDisplayName,
-    ];
-
-    if (requiredEncryptedFields.some((value) => !looksLikeCipherString(value))) {
-      return true;
-    }
-    if (optionalEncryptedFields.some((value) => value != null && !looksLikeCipherString(value))) {
-      return true;
-    }
-    return false;
-  });
-
-  return hasMalformedCredential
-    ? {
-        ...normalized,
-        fido2Credentials: null,
-      }
-    : normalized;
 }
 
 // Android 2026.2.0 requires sshKey.keyFingerprint in sync payloads.
@@ -173,18 +138,18 @@ export function formatAttachments(attachments: Attachment[]): any[] | null {
 // survive a round-trip without code changes.
 export function cipherToResponse(
   cipher: Cipher,
-  attachments: Attachment[] = [],
+  attachments: Attachment[] = []
-  options?: { omitFido2Credentials?: boolean }
 ): CipherResponse {
   // Strip internal-only fields that must not appear in the API response
   const { userId, createdAt, updatedAt, archivedAt, deletedAt, ...passthrough } = cipher;
-  const normalizedLogin = normalizeCipherLoginForCompatibility((passthrough as any).login ?? null, options);
+  const normalizedLogin = normalizeCipherLoginForCompatibility((passthrough as any).login ?? null);
   const normalizedSshKey = normalizeCipherSshKeyForCompatibility((passthrough as any).sshKey ?? null);
 
   return {
     // Pass through ALL stored cipher fields (known + unknown)
     ...passthrough,
     // Server-computed / enforced fields (always override)
+    folderId: normalizeOptionalId(cipher.folderId),
     type: Number(cipher.type) || 1,
     organizationId: null,
     organizationUseTotp: false,
@@ -213,7 +178,6 @@ export async function handleGetCiphers(request: Request, env: Env, userId: strin
   const url = new URL(request.url);
   const includeDeleted = url.searchParams.get('deleted') === 'true';
   const pagination = parsePagination(url);
-  const omitFido2Credentials = shouldOmitPasskeysForResponse(request);
 
   let filteredCiphers: Cipher[];
   let continuationToken: string | null = null;
@@ -234,13 +198,15 @@ export async function handleGetCiphers(request: Request, env: Env, userId: strin
       : ciphers.filter(c => !c.deletedAt);
   }
 
-  const attachmentsByCipher = await storage.getAttachmentsByUserId(userId);
+  const attachmentsByCipher = await storage.getAttachmentsByCipherIds(
+    filteredCiphers.map((cipher) => cipher.id)
+  );
 
-  // Get attachments for all ciphers
+  // Build responses only for the current page to keep pagination cheap.
-  const cipherResponses = [];
+  const cipherResponses: CipherResponse[] = [];
   for (const cipher of filteredCiphers) {
     const attachments = attachmentsByCipher.get(cipher.id) || [];
-    cipherResponses.push(cipherToResponse(cipher, attachments, { omitFido2Credentials }));
+    cipherResponses.push(cipherToResponse(cipher, attachments));
   }
 
   return jsonResponse({
@@ -261,9 +227,7 @@ export async function handleGetCipher(request: Request, env: Env, userId: string
 
   const attachments = await storage.getAttachmentsByCipher(cipher.id);
   return jsonResponse(
-    cipherToResponse(cipher, attachments, {
+    cipherToResponse(cipher, attachments)
-      omitFido2Credentials: shouldOmitPasskeysForResponse(request),
-    })
   );
 }
 
@@ -319,9 +283,7 @@ export async function handleCreateCipher(request: Request, env: Env, userId: str
   await notifyVaultSyncForRequest(request, env, userId, revisionDate);
 
   return jsonResponse(
-    cipherToResponse(cipher, [], {
+    cipherToResponse(cipher, []),
-      omitFido2Credentials: shouldOmitPasskeysForResponse(request),
-    }),
     200
   );
 }
@@ -362,6 +324,11 @@ export async function handleUpdateCipher(request: Request, env: Env, userId: str
     archivedAt: readCipherArchivedAt(cipherData, existingCipher.archivedAt ?? null),
     deletedAt: existingCipher.deletedAt,
   };
+  cipher.login = mergeCipherNestedObject(existingCipher.login, cipherData.login);
+  cipher.card = mergeCipherNestedObject(existingCipher.card, cipherData.card);
+  cipher.identity = mergeCipherNestedObject(existingCipher.identity, cipherData.identity);
+  cipher.secureNote = mergeCipherNestedObject(existingCipher.secureNote, cipherData.secureNote);
+  cipher.sshKey = mergeCipherNestedObject(existingCipher.sshKey, cipherData.sshKey);
 
   // Custom fields deletion compatibility:
   // - Accept both camelCase "fields" and PascalCase "Fields".
@@ -386,9 +353,7 @@ export async function handleUpdateCipher(request: Request, env: Env, userId: str
   await notifyVaultSyncForRequest(request, env, userId, revisionDate);
 
   return jsonResponse(
-    cipherToResponse(cipher, [], {
+    cipherToResponse(cipher, [])
-      omitFido2Credentials: shouldOmitPasskeysForResponse(request),
-    })
   );
 }
 
@@ -410,9 +375,7 @@ export async function handleDeleteCipher(request: Request, env: Env, userId: str
   await notifyVaultSyncForRequest(request, env, userId, revisionDate);
 
   return jsonResponse(
-    cipherToResponse(cipher, [], {
+    cipherToResponse(cipher, [])
-      omitFido2Credentials: shouldOmitPasskeysForResponse(request),
-    })
   );
 }
 
@@ -476,9 +439,7 @@ export async function handleRestoreCipher(request: Request, env: Env, userId: st
   await notifyVaultSyncForRequest(request, env, userId, revisionDate);
 
   return jsonResponse(
-    cipherToResponse(cipher, [], {
+    cipherToResponse(cipher, [])
-      omitFido2Credentials: shouldOmitPasskeysForResponse(request),
-    })
   );
 }
 
@@ -499,11 +460,12 @@ export async function handlePartialUpdateCipher(request: Request, env: Env, user
   }
 
   if (body.folderId !== undefined) {
-    if (body.folderId) {
+    const folderId = normalizeOptionalId(body.folderId);
-      const folderOk = await verifyFolderOwnership(storage, body.folderId, userId);
+    if (folderId) {
+      const folderOk = await verifyFolderOwnership(storage, folderId, userId);
       if (!folderOk) return errorResponse('Folder not found', 404);
     }
-    cipher.folderId = body.folderId;
+    cipher.folderId = folderId;
   }
   if (body.favorite !== undefined) {
     cipher.favorite = body.favorite;
@@ -516,9 +478,7 @@ export async function handlePartialUpdateCipher(request: Request, env: Env, user
   await notifyVaultSyncForRequest(request, env, userId, revisionDate);
 
   return jsonResponse(
-    cipherToResponse(cipher, [], {
+    cipherToResponse(cipher, [])
-      omitFido2Credentials: shouldOmitPasskeysForResponse(request),
-    })
   );
 }
 
@@ -537,12 +497,13 @@ export async function handleBulkMoveCiphers(request: Request, env: Env, userId:
     return errorResponse('ids array is required', 400);
   }
 
-  if (body.folderId) {
+  const folderId = normalizeOptionalId(body.folderId);
-    const folderOk = await verifyFolderOwnership(storage, body.folderId, userId);
+  if (folderId) {
+    const folderOk = await verifyFolderOwnership(storage, folderId, userId);
     if (!folderOk) return errorResponse('Folder not found', 404);
   }
 
-  const revisionDate = await storage.bulkMoveCiphers(body.ids, body.folderId || null, userId);
+  const revisionDate = await storage.bulkMoveCiphers(body.ids, folderId, userId);
   if (revisionDate) {
     await notifyVaultSyncForRequest(request, env, userId, revisionDate);
   }
@@ -558,13 +519,10 @@ async function buildCipherListResponse(
 ): Promise<Response> {
   const ciphers = await storage.getCiphersByIds(ids, userId);
   const attachmentsByCipher = await storage.getAttachmentsByCipherIds(ciphers.map((cipher) => cipher.id));
-  const omitFido2Credentials = shouldOmitPasskeysForResponse(request);
 
   return jsonResponse({
     data: ciphers.map((cipher) =>
-      cipherToResponse(cipher, attachmentsByCipher.get(cipher.id) || [], {
+      cipherToResponse(cipher, attachmentsByCipher.get(cipher.id) || [])
-        omitFido2Credentials,
-      })
     ),
     object: 'list',
     continuationToken: null,
@@ -597,9 +555,7 @@ export async function handleArchiveCipher(request: Request, env: Env, userId: st
 
   const attachments = await storage.getAttachmentsByCipher(cipher.id);
   return jsonResponse(
-    cipherToResponse(cipher, attachments, {
+    cipherToResponse(cipher, attachments)
-      omitFido2Credentials: shouldOmitPasskeysForResponse(request),
-    })
   );
 }
 
@@ -621,9 +577,7 @@ export async function handleUnarchiveCipher(request: Request, env: Env, userId:
 
   const attachments = await storage.getAttachmentsByCipher(cipher.id);
   return jsonResponse(
-    cipherToResponse(cipher, attachments, {
+    cipherToResponse(cipher, attachments)
-      omitFido2Credentials: shouldOmitPasskeysForResponse(request),
-    })
   );
 }
 

src/handlers/identity.ts

@@ -18,6 +18,7 @@ import {
 const TWO_FACTOR_REMEMBER_TTL_MS = 30 * 24 * 60 * 60 * 1000;
 const TWO_FACTOR_PROVIDER_AUTHENTICATOR = 0;
 const TWO_FACTOR_PROVIDER_REMEMBER = 5;
+const WEB_REFRESH_COOKIE = 'nodewarden_web_refresh';
 // Android client (2026.2.x) deserializes TwoFactorProviders2 keys with -1 for recovery code.
 // Keep request parsing backward-compatible with historical provider values (8 / 100).
 const TWO_FACTOR_PROVIDER_RECOVERY_CODE_RESPONSE = '-1';
@@ -31,6 +32,54 @@ function resolveTotpSecret(userSecret: string | null): string | null {
   return null;
 }
 
+function shouldUseWebSession(request: Request): boolean {
+  return String(request.headers.get('X-NodeWarden-Web-Session') || '').trim() === '1';
+}
+
+function parseCookieValue(request: Request, name: string): string | null {
+  const rawCookie = String(request.headers.get('Cookie') || '').trim();
+  if (!rawCookie) return null;
+  for (const part of rawCookie.split(';')) {
+    const [key, ...rest] = part.trim().split('=');
+    if (key !== name) continue;
+    const value = rest.join('=').trim();
+    return value ? decodeURIComponent(value) : null;
+  }
+  return null;
+}
+
+function buildRefreshCookie(request: Request, refreshToken: string, maxAgeSeconds: number): string {
+  const isHttps = new URL(request.url).protocol === 'https:';
+  const parts = [
+    `${WEB_REFRESH_COOKIE}=${encodeURIComponent(refreshToken)}`,
+    'Path=/identity/connect',
+    'HttpOnly',
+    'SameSite=Strict',
+    `Max-Age=${Math.max(0, Math.floor(maxAgeSeconds))}`,
+  ];
+  if (isHttps) parts.push('Secure');
+  return parts.join('; ');
+}
+
+function buildClearedRefreshCookie(request: Request): string {
+  return buildRefreshCookie(request, '', 0);
+}
+
+function withWebRefreshCookie(request: Request, response: Response, refreshToken: string | null): Response {
+  const headers = new Headers(response.headers);
+  headers.append(
+    'Set-Cookie',
+    refreshToken
+      ? buildRefreshCookie(request, refreshToken, Math.floor(LIMITS.auth.refreshTokenTtlMs / 1000))
+      : buildClearedRefreshCookie(request)
+  );
+  return new Response(response.body, {
+    status: response.status,
+    statusText: response.statusText,
+    headers,
+  });
+}
+
 function buildPreloginResponse(
   email: string,
   kdfType: number,
@@ -278,17 +327,19 @@ export async function handleToken(request: Request, env: Env): Promise<Response>
 
     const accessToken = await auth.generateAccessToken(user, deviceSession);
     const refreshToken = await auth.generateRefreshToken(user.id, deviceSession);
+    const accountKeys = buildAccountKeys(user);
+    const userDecryptionOptions = buildUserDecryptionOptions(user);
 
     const response: TokenResponse = {
       access_token: accessToken,
       expires_in: LIMITS.auth.accessTokenTtlSeconds,
       token_type: 'Bearer',
-      refresh_token: refreshToken,
+      ...(shouldUseWebSession(request) ? { web_session: true } : { refresh_token: refreshToken }),
       ...(trustedTwoFactorTokenToReturn ? { TwoFactorToken: trustedTwoFactorTokenToReturn } : {}),
       Key: user.key,
       PrivateKey: user.privateKey,
-      AccountKeys: buildAccountKeys(user),
+      AccountKeys: accountKeys,
-      accountKeys: buildAccountKeys(user),
+      accountKeys: accountKeys,
       Kdf: user.kdfType,
       KdfIterations: user.kdfIterations,
       KdfMemory: user.kdfMemory,
@@ -301,11 +352,14 @@ export async function handleToken(request: Request, env: Env): Promise<Response>
       ApiUseKeyConnector: false,
       scope: 'api offline_access',
       unofficialServer: true,
-      UserDecryptionOptions: buildUserDecryptionOptions(user),
+      UserDecryptionOptions: userDecryptionOptions,
-      userDecryptionOptions: buildUserDecryptionOptions(user),
+      userDecryptionOptions: userDecryptionOptions,
     };
 
-    return jsonResponse(response);
+    const baseResponse = jsonResponse(response);
+    return shouldUseWebSession(request)
+      ? withWebRefreshCookie(request, baseResponse, refreshToken)
+      : baseResponse;
 
   } else if (grantType === 'send_access') {
     const sendAccessLimit = await rateLimit.consumeBudget(`${clientIdentifier}:public`, LIMITS.rateLimit.publicRequestsPerMinute);
@@ -371,14 +425,21 @@ export async function handleToken(request: Request, env: Env): Promise<Response>
     }
 
     // Refresh token
-    const refreshToken = body.refresh_token;
+    const refreshToken = String(body.refresh_token || '').trim() || (
+      shouldUseWebSession(request)
+        ? parseCookieValue(request, WEB_REFRESH_COOKIE)
+        : null
+    );
     if (!refreshToken) {
       return identityErrorResponse('Refresh token is required', 'invalid_request', 400);
     }
 
     const result = await auth.refreshAccessToken(refreshToken);
     if (!result) {
-      return identityErrorResponse('Invalid refresh token', 'invalid_grant', 400);
+      const invalidResponse = identityErrorResponse('Invalid refresh token', 'invalid_grant', 400);
+      return shouldUseWebSession(request)
+        ? withWebRefreshCookie(request, invalidResponse, null)
+        : invalidResponse;
     }
 
     // Keep a short overlap window for old refresh token to absorb
@@ -390,16 +451,18 @@ export async function handleToken(request: Request, env: Env): Promise<Response>
 
     const { accessToken, user, device } = result;
     const newRefreshToken = await auth.generateRefreshToken(user.id, device);
+    const accountKeys = buildAccountKeys(user);
+    const userDecryptionOptions = buildUserDecryptionOptions(user);
 
     const response: TokenResponse = {
       access_token: accessToken,
       expires_in: LIMITS.auth.accessTokenTtlSeconds,
       token_type: 'Bearer',
-      refresh_token: newRefreshToken,
+      ...(shouldUseWebSession(request) ? { web_session: true } : { refresh_token: newRefreshToken }),
       Key: user.key,
       PrivateKey: user.privateKey,
-      AccountKeys: buildAccountKeys(user),
+      AccountKeys: accountKeys,
-      accountKeys: buildAccountKeys(user),
+      accountKeys: accountKeys,
       Kdf: user.kdfType,
       KdfIterations: user.kdfIterations,
       KdfMemory: user.kdfMemory,
@@ -412,11 +475,14 @@ export async function handleToken(request: Request, env: Env): Promise<Response>
       ApiUseKeyConnector: false,
       scope: 'api offline_access',
       unofficialServer: true,
-      UserDecryptionOptions: buildUserDecryptionOptions(user),
+      UserDecryptionOptions: userDecryptionOptions,
-      userDecryptionOptions: buildUserDecryptionOptions(user),
+      userDecryptionOptions: userDecryptionOptions,
     };
 
-    return jsonResponse(response);
+    const baseResponse = jsonResponse(response);
+    return shouldUseWebSession(request)
+      ? withWebRefreshCookie(request, baseResponse, newRefreshToken)
+      : baseResponse;
   }
 
   return identityErrorResponse('Unsupported grant type', 'unsupported_grant_type', 400);
@@ -470,10 +536,17 @@ export async function handleRevocation(request: Request, env: Env): Promise<Resp
     return new Response(null, { status: 200 });
   }
 
-  const token = String(body.token || '').trim();
+  const token = String(body.token || '').trim() || (
+    shouldUseWebSession(request)
+      ? (parseCookieValue(request, WEB_REFRESH_COOKIE) || '')
+      : ''
+  );
   if (token) {
     await storage.deleteRefreshToken(token);
   }
 
-  return new Response(null, { status: 200 });
+  const baseResponse = new Response(null, { status: 200 });
+  return shouldUseWebSession(request)
+    ? withWebRefreshCookie(request, baseResponse, null)
+    : baseResponse;
 }

src/handlers/import.ts

@@ -24,7 +24,6 @@ interface CiphersImportRequest {
       password?: string | null;
       totp?: string | null;
       autofillOnPageLoad?: boolean | null;
-      fido2Credentials?: any[] | null;
       uri?: string | null;
       passwordRevisionDate?: string | null;
       [key: string]: any;
@@ -159,7 +158,7 @@ export async function handleCiphersImport(request: Request, env: Env, userId: st
   const cipherMapRows: Array<{ index: number; sourceId: string | null; id: string }> = [];
   for (let i = 0; i < ciphers.length; i++) {
     const c = ciphers[i];
-    const folderId = cipherFolderMap.get(i) || null;
+    const folderId = cipherFolderMap.get(i) || c.folderId || null;
     const sourceIdRaw = String(c?.id ?? '').trim();
     const sourceId = sourceIdRaw || null;
 
@@ -184,7 +183,7 @@ export async function handleCiphersImport(request: Request, env: Env, userId: st
         })) || null,
         totp: c.login.totp ?? null,
         autofillOnPageLoad: c.login.autofillOnPageLoad ?? null,
-        fido2Credentials: c.login.fido2Credentials ?? null,
+        fido2Credentials: Array.isArray(c.login.fido2Credentials) ? c.login.fido2Credentials : null,
         uri: c.login.uri ?? null,
         passwordRevisionDate: c.login.passwordRevisionDate ?? null,
       } : null,

src/handlers/sends-private.ts

@@ -97,8 +97,9 @@ export async function handleGetSends(request: Request, env: Env, userId: string)
     sends = await storage.getAllSends(userId);
   }
 
+  const sendResponses = sends.map(sendToResponse);
   return jsonResponse({
-    data: sends.map(sendToResponse),
+    data: sendResponses,
     object: 'list',
     continuationToken,
   });

src/handlers/sync.ts

@@ -10,87 +10,23 @@ import {
   buildUserDecryptionOptions,
 } from '../utils/user-decryption';
 
-interface SyncCacheEntry {
+function buildSyncCacheRequest(request: Request, userId: string, revisionDate: string, excludeDomains: boolean): Request {
-  userId: string;
+  const url = new URL(request.url);
-  revisionDate: string;
+  const cacheUrl = new URL(
-  body: string;
+    `/__nodewarden/cache/sync/${encodeURIComponent(userId)}/${encodeURIComponent(revisionDate)}/${excludeDomains ? '1' : '0'}`,
-  expiresAt: number;
+    url.origin
-  bytes: number;
+  );
+  return new Request(cacheUrl.toString(), { method: 'GET' });
 }
 
-const syncResponseCache = new Map<string, SyncCacheEntry>();
+async function readSyncCache(cacheRequest: Request): Promise<Response | null> {
-let syncResponseCacheTotalBytes = 0;
+  const hit = await caches.default.match(cacheRequest);
-const textEncoder = new TextEncoder();
-
-function buildSyncCacheKey(userId: string, revisionDate: string, excludeDomains: boolean): string {
-  return `${userId}:${revisionDate}:${excludeDomains ? '1' : '0'}`;
-}
-
-function readSyncCache(key: string): string | null {
-  const hit = syncResponseCache.get(key);
   if (!hit) return null;
-  if (hit.expiresAt <= Date.now()) {
+  return new Response(hit.body, hit);
-    deleteSyncCacheEntry(key, hit);
-    return null;
-  }
-  return hit.body;
 }
 
-function deleteSyncCacheEntry(key: string, entry?: SyncCacheEntry): void {
+async function writeSyncCache(cacheRequest: Request, response: Response): Promise<void> {
-  const existing = entry ?? syncResponseCache.get(key);
+  await caches.default.put(cacheRequest, response.clone());
-  if (!existing) return;
-  syncResponseCache.delete(key);
-  syncResponseCacheTotalBytes = Math.max(0, syncResponseCacheTotalBytes - existing.bytes);
-}
-
-function pruneExpiredSyncCache(nowMs: number = Date.now()): void {
-  for (const [key, entry] of syncResponseCache.entries()) {
-    if (entry.expiresAt <= nowMs) {
-      deleteSyncCacheEntry(key, entry);
-    }
-  }
-}
-
-function pruneStaleUserSyncCache(userId: string, revisionDate: string): void {
-  for (const [key, entry] of syncResponseCache.entries()) {
-    if (entry.userId === userId && entry.revisionDate !== revisionDate) {
-      deleteSyncCacheEntry(key, entry);
-    }
-  }
-}
-
-function writeSyncCache(userId: string, revisionDate: string, key: string, body: string): void {
-  const nowMs = Date.now();
-  pruneExpiredSyncCache(nowMs);
-  pruneStaleUserSyncCache(userId, revisionDate);
-
-  const bodyBytes = textEncoder.encode(body).byteLength;
-  if (bodyBytes > LIMITS.cache.syncResponseMaxBodyBytes) {
-    return;
-  }
-
-  const existing = syncResponseCache.get(key);
-  if (existing) {
-    deleteSyncCacheEntry(key, existing);
-  }
-
-  while (
-    syncResponseCache.size >= LIMITS.cache.syncResponseMaxEntries ||
-    syncResponseCacheTotalBytes + bodyBytes > LIMITS.cache.syncResponseMaxTotalBytes
-  ) {
-    const oldestKey = syncResponseCache.keys().next().value as string | undefined;
-    if (!oldestKey) break;
-    deleteSyncCacheEntry(oldestKey);
-  }
-
-  syncResponseCache.set(key, {
-    userId,
-    revisionDate,
-    body,
-    expiresAt: nowMs + LIMITS.cache.syncResponseTtlMs,
-    bytes: bodyBytes,
-  });
-  syncResponseCacheTotalBytes += bodyBytes;
 }
 
 // GET /api/sync
@@ -99,12 +35,6 @@ export async function handleSync(request: Request, env: Env, userId: string): Pr
   const url = new URL(request.url);
   const excludeDomainsParam = url.searchParams.get('excludeDomains');
   const excludeDomains = excludeDomainsParam !== null && /^(1|true|yes)$/i.test(excludeDomainsParam);
-  const userAgent = String(request.headers.get('user-agent') || '').toLowerCase();
-  const omitFido2Credentials =
-    userAgent.includes('android') ||
-    userAgent.includes('iphone') ||
-    userAgent.includes('ipad') ||
-    userAgent.includes('ios');
 
   const user = await storage.getUserById(userId);
   if (!user) {
@@ -112,21 +42,21 @@ export async function handleSync(request: Request, env: Env, userId: string): Pr
   }
 
   const revisionDate = await storage.getRevisionDate(userId);
-  const cacheKey = buildSyncCacheKey(userId, revisionDate, excludeDomains);
+  const cacheRequest = buildSyncCacheRequest(request, userId, revisionDate, excludeDomains);
-  const cachedBody = readSyncCache(cacheKey);
+  const cachedResponse = await readSyncCache(cacheRequest);
-  if (cachedBody) {
+  if (cachedResponse) {
-    return new Response(cachedBody, {
+    return cachedResponse;
-      status: 200,
-      headers: { 'Content-Type': 'application/json' },
-    });
   }
 
-  const ciphers = await storage.getAllCiphers(userId);
+  const [ciphers, folders, sends, attachmentsByCipher] = await Promise.all([
-  const folders = await storage.getAllFolders(userId);
+    storage.getAllCiphers(userId),
-  const sends = await storage.getAllSends(userId);
+    storage.getAllFolders(userId),
-  const attachmentsByCipher = await storage.getAttachmentsByUserId(userId);
+    storage.getAllSends(userId),
+    storage.getAttachmentsByUserId(userId),
+  ]);
+  const accountKeys = buildAccountKeys(user);
+  const userDecryptionOptions = buildUserDecryptionOptions(user);
 
-  // Build profile response
   const profile: ProfileResponse = {
     id: user.id,
     name: user.name,
@@ -140,7 +70,7 @@ export async function handleSync(request: Request, env: Env, userId: string): Pr
     twoFactorEnabled: !!user.totpSecret,
     key: user.key,
     privateKey: user.privateKey,
-    accountKeys: buildAccountKeys(user),
+    accountKeys,
     securityStamp: user.securityStamp || user.id,
     organizations: [],
     providers: [],
@@ -152,23 +82,24 @@ export async function handleSync(request: Request, env: Env, userId: string): Pr
     object: 'profile',
   };
 
-  // Build cipher responses with attachments
   const cipherResponses: CipherResponse[] = [];
   for (const cipher of ciphers) {
-    const attachments = attachmentsByCipher.get(cipher.id) || [];
+    cipherResponses.push(cipherToResponse(cipher, attachmentsByCipher.get(cipher.id) || []));
-    cipherResponses.push(cipherToResponse(cipher, attachments, { omitFido2Credentials }));
   }
 
-  // Build folder responses
+  const folderResponses: FolderResponse[] = [];
-  const folderResponses: FolderResponse[] = folders.map(folder => ({
+  for (const folder of folders) {
+    folderResponses.push({
       id: folder.id,
       name: folder.name,
       revisionDate: folder.updatedAt,
       object: 'folder',
-  }));
+    });
+  }
 
+  const sendResponses = sends.map(sendToResponse);
   const syncResponse: SyncResponse = {
-    profile: profile,
+    profile,
     folders: folderResponses,
     collections: [],
     ciphers: cipherResponses,
@@ -180,25 +111,25 @@ export async function handleSync(request: Request, env: Env, userId: string): Pr
           object: 'domains',
         },
     policies: [],
-    sends: sends.map(sendToResponse),
+    sends: sendResponses,
     UserDecryption: {
-      MasterPasswordUnlock: buildUserDecryptionOptions(user).MasterPasswordUnlock,
+      MasterPasswordUnlock: userDecryptionOptions.MasterPasswordUnlock,
       TrustedDeviceOption: null,
       KeyConnectorOption: null,
       Object: 'userDecryption',
     },
-    // PascalCase for desktop/browser clients
+    UserDecryptionOptions: userDecryptionOptions,
-    UserDecryptionOptions: buildUserDecryptionOptions(user),
-    // camelCase for Android client (SyncResponseJson uses @SerialName("userDecryption"))
     userDecryption: buildUserDecryptionCompat(user) as SyncResponse['userDecryption'],
     object: 'sync',
   };
 
-  const body = JSON.stringify(syncResponse);
+  const response = new Response(JSON.stringify(syncResponse), {
-  writeSyncCache(userId, revisionDate, cacheKey, body);
-
-  return new Response(body, {
     status: 200,
-    headers: { 'Content-Type': 'application/json' },
+    headers: {
+      'Content-Type': 'application/json',
+      'Cache-Control': `private, max-age=${Math.max(1, Math.floor(LIMITS.cache.syncResponseTtlMs / 1000))}`,
+    },
   });
+  await writeSyncCache(cacheRequest, response);
+  return response;
 }

src/index.ts

@@ -9,6 +9,15 @@ let dbInitialized = false;
 let dbInitError: string | null = null;
 let dbInitPromise: Promise<void> | null = null;
 
+function normalizeRequestUrl(request: Request): Request {
+  const url = new URL(request.url);
+  const normalizedPathname = url.pathname.length <= 1 ? url.pathname : url.pathname.replace(/\/+$/, '');
+  if (normalizedPathname === url.pathname) return request;
+
+  url.pathname = normalizedPathname;
+  return new Request(url.toString(), request);
+}
+
 function isWorkerHandledPath(path: string): boolean {
   return (
     path.startsWith('/api/') ||
@@ -56,9 +65,10 @@ async function ensureDatabaseInitialized(env: Env): Promise<void> {
 export default {
   async fetch(request: Request, env: Env, ctx: ExecutionContext): Promise<Response> {
     void ctx;
-    const assetResponse = await maybeServeAsset(request, env);
+    const normalizedRequest = normalizeRequestUrl(request);
+    const assetResponse = await maybeServeAsset(normalizedRequest, env);
     if (assetResponse) {
-      return applyCors(request, assetResponse);
+      return applyCors(normalizedRequest, assetResponse);
     }
 
     await ensureDatabaseInitialized(env);
@@ -76,11 +86,11 @@ export default {
         },
         500
       );
-      return applyCors(request, resp);
+      return applyCors(normalizedRequest, resp);
     }
 
-    const resp = await handleRequest(request, env);
+    const resp = await handleRequest(normalizedRequest, env);
-    return applyCors(request, resp);
+    return applyCors(normalizedRequest, resp);
   },
 
   async scheduled(controller: ScheduledController, env: Env, ctx: ExecutionContext): Promise<void> {

src/router-admin-backup.ts

@@ -6,6 +6,7 @@ import {
   handleDownloadAdminBackupAttachment,
   handleGetAdminBackupSettings,
   handleGetAdminBackupSettingsRepairState,
+  handleInspectAdminRemoteBackup,
   handleAdminImportBackup,
   handleListAdminRemoteBackups,
   handleRepairAdminBackupSettings,
@@ -53,6 +54,10 @@ export async function handleAdminBackupRoute(
     return handleDownloadAdminRemoteBackup(request, env, actorUser);
   }
 
+  if (path === '/api/admin/backup/remote/integrity' && method === 'GET') {
+    return handleInspectAdminRemoteBackup(request, env, actorUser);
+  }
+
   if (path === '/api/admin/backup/remote/file' && method === 'DELETE') {
     return handleDeleteAdminRemoteBackup(request, env, actorUser);
   }

src/services/backup-archive.ts

@@ -9,6 +9,7 @@ import {
 type SqlRow = Record<string, string | number | null>;
 
 const BACKUP_FORMAT_VERSION = 1;
+const BACKUP_FILE_HASH_PREFIX_LENGTH = 5;
 // Worker-side backup export must stay well below Cloudflare CPU limits.
 // Prefer store-only ZIP entries over heavier compression to keep exports reliable.
 const BACKUP_TEXT_COMPRESSION_LEVEL = 0;
@@ -60,25 +61,89 @@ export interface BackupArchiveBundle {
   manifest: BackupManifest;
 }
 
+export interface BackupFileIntegrityCheckResult {
+  hasChecksumPrefix: boolean;
+  expectedPrefix: string | null;
+  actualPrefix: string;
+  matches: boolean;
+}
+
 export interface BuildBackupArchiveOptions {
   includeAttachments?: boolean;
+  progress?: BackupArchiveBuildProgressReporter;
+  timeZone?: string;
 }
 
+export interface BackupArchiveBuildProgressEvent {
+  step: string;
+  fileName?: string;
+  stageTitle: string;
+  stageDetail: string;
+  includeAttachments: boolean;
+}
+
+export type BackupArchiveBuildProgressReporter = (event: BackupArchiveBuildProgressEvent) => Promise<void>;
+
 async function queryRows(db: D1Database, sql: string, ...values: unknown[]): Promise<SqlRow[]> {
   const result = await db.prepare(sql).bind(...values).all<SqlRow>();
   return (result.results || []).map((row) => ({ ...row }));
 }
 
-function buildBackupFileName(date: Date = new Date()): string {
+async function sha256Hex(bytes: Uint8Array): Promise<string> {
-  const parts = [
+  const digest = await crypto.subtle.digest('SHA-256', bytes);
-    date.getUTCFullYear().toString().padStart(4, '0'),
+  return Array.from(new Uint8Array(digest)).map((byte) => byte.toString(16).padStart(2, '0')).join('');
-    (date.getUTCMonth() + 1).toString().padStart(2, '0'),
+}
-    date.getUTCDate().toString().padStart(2, '0'),
+
-    date.getUTCHours().toString().padStart(2, '0'),
+function getDateParts(date: Date, timeZone: string): string {
-    date.getUTCMinutes().toString().padStart(2, '0'),
+  const formatter = new Intl.DateTimeFormat('en-CA', {
-    date.getUTCSeconds().toString().padStart(2, '0'),
+    timeZone,
-  ];
+    year: 'numeric',
-  return `nodewarden_backup_${parts[0]}${parts[1]}${parts[2]}_${parts[3]}${parts[4]}${parts[5]}.zip`;
+    month: '2-digit',
+    day: '2-digit',
+    hour: '2-digit',
+    minute: '2-digit',
+    second: '2-digit',
+    hourCycle: 'h23',
+  });
+  const parts = formatter.formatToParts(date);
+  const pick = (type: string): string => parts.find((part) => part.type === type)?.value || '';
+  return `${pick('year')}${pick('month')}${pick('day')}_${pick('hour')}${pick('minute')}${pick('second')}`;
+}
+
+function buildBackupFileNameInTimeZone(
+  date: Date = new Date(),
+  checksumPrefix: string | null = null,
+  timeZone: string = 'UTC'
+): string {
+  const parts = getDateParts(date, timeZone);
+  const suffix = checksumPrefix ? `_${checksumPrefix}` : '';
+  return `nodewarden_backup_${parts}${suffix}.zip`;
+}
+
+export function extractBackupFileChecksumPrefix(fileName: string): string | null {
+  const normalized = String(fileName || '').trim();
+  const match = normalized.match(/_([0-9a-f]{5})\.zip$/i);
+  return match ? match[1].toLowerCase() : null;
+}
+
+export async function inspectBackupArchiveFileNameChecksum(
+  bytes: Uint8Array,
+  fileName: string
+): Promise<BackupFileIntegrityCheckResult> {
+  const expectedPrefix = extractBackupFileChecksumPrefix(fileName);
+  const actualHash = await sha256Hex(bytes);
+  const actualPrefix = actualHash.slice(0, BACKUP_FILE_HASH_PREFIX_LENGTH);
+  return {
+    hasChecksumPrefix: !!expectedPrefix,
+    expectedPrefix,
+    actualPrefix,
+    matches: !expectedPrefix || actualPrefix === expectedPrefix,
+  };
+}
+
+export async function verifyBackupArchiveFileNameChecksum(bytes: Uint8Array, fileName: string): Promise<boolean> {
+  const result = await inspectBackupArchiveFileNameChecksum(bytes, fileName);
+  return result.matches;
 }
 
 function validateArchiveSize(bytes: Uint8Array): void {
@@ -269,16 +334,25 @@ export async function buildBackupArchive(
   date: Date = new Date(),
   options: BuildBackupArchiveOptions = {}
 ): Promise<BackupArchiveBundle> {
+  const includeAttachments = options.includeAttachments !== false;
+  await options.progress?.({
+    step: 'collect_data',
+    fileName: '',
+    stageTitle: 'txt_backup_archive_progress_collect_title',
+    stageDetail: includeAttachments
+      ? 'txt_backup_archive_progress_collect_with_attachments_detail'
+      : 'txt_backup_archive_progress_collect_detail',
+    includeAttachments,
+  });
   const encoder = new TextEncoder();
   const [configRows, userRows, revisionRows, folderRows, cipherRows, attachmentRows] = await Promise.all([
     queryRows(env.DB, 'SELECT key, value FROM config ORDER BY key ASC'),
-    queryRows(env.DB, 'SELECT id, email, name, master_password_hint, master_password_hash, key, private_key, public_key, kdf_type, kdf_iterations, kdf_memory, kdf_parallelism, security_stamp, role, status, totp_secret, totp_recovery_code, created_at, updated_at FROM users ORDER BY created_at ASC'),
+    queryRows(env.DB, 'SELECT id, email, name, master_password_hint, master_password_hash, key, private_key, public_key, kdf_type, kdf_iterations, kdf_memory, kdf_parallelism, security_stamp, role, status, verify_devices, totp_secret, totp_recovery_code, created_at, updated_at FROM users ORDER BY created_at ASC'),
     queryRows(env.DB, 'SELECT user_id, revision_date FROM user_revisions ORDER BY user_id ASC'),
     queryRows(env.DB, 'SELECT id, user_id, name, created_at, updated_at FROM folders ORDER BY created_at ASC'),
-    queryRows(env.DB, 'SELECT id, user_id, type, folder_id, name, notes, favorite, data, reprompt, key, created_at, updated_at, deleted_at FROM ciphers ORDER BY created_at ASC'),
+    queryRows(env.DB, 'SELECT id, user_id, type, folder_id, name, notes, favorite, data, reprompt, key, created_at, updated_at, archived_at, deleted_at FROM ciphers ORDER BY created_at ASC'),
     queryRows(env.DB, 'SELECT id, cipher_id, file_name, size, size_name, key FROM attachments ORDER BY cipher_id ASC, id ASC'),
   ]);
-  const includeAttachments = options.includeAttachments !== false;
   const exportedAttachmentRows = includeAttachments ? attachmentRows : [];
   const attachmentBlobs: BackupManifestAttachmentBlob[] = exportedAttachmentRows.map((row) => {
     const cipherId = String(row.cipher_id || '').trim();
@@ -327,9 +401,30 @@ export async function buildBackupArchive(
     }, null, BACKUP_JSON_INDENT)),
   };
 
+  await options.progress?.({
+    step: 'package_archive',
+    fileName: '',
+    stageTitle: 'txt_backup_archive_progress_package_title',
+    stageDetail: includeAttachments
+      ? 'txt_backup_archive_progress_package_with_attachments_detail'
+      : 'txt_backup_archive_progress_package_detail',
+    includeAttachments,
+  });
+  const bytes = zipSync(createZipEntries(files));
+  const fileHashPrefix = (await sha256Hex(bytes)).slice(0, BACKUP_FILE_HASH_PREFIX_LENGTH);
+  const backupTimeZone = options.timeZone || 'UTC';
+  const fileName = buildBackupFileNameInTimeZone(date, fileHashPrefix, backupTimeZone);
+  await options.progress?.({
+    step: 'archive_ready',
+    fileName,
+    stageTitle: 'txt_backup_archive_progress_ready_title',
+    stageDetail: 'txt_backup_archive_progress_ready_detail',
+    includeAttachments,
+  });
+
   return {
-    bytes: zipSync(createZipEntries(files)),
+    bytes,
-    fileName: buildBackupFileName(date),
+    fileName,
     manifest: manifestBase,
   };
 }

src/services/backup-config.ts

@@ -1,4 +1,4 @@
-import type { Env } from '../types';
+import type { Env, User } from '../types';
 import { StorageService } from './storage';
 import {
   type BackupSettingsPortableEnvelope,
@@ -422,20 +422,45 @@ export async function saveBackupSettings(storage: StorageService, env: Env, sett
 export async function normalizeImportedBackupSettings(storage: StorageService, env: Env, fallbackTimezone: string = 'UTC'): Promise<void> {
   const raw = await storage.getConfigValue(BACKUP_SETTINGS_CONFIG_KEY);
   if (!raw) return;
+  const users = await storage.getAllUsers();
+  const normalized = await normalizeImportedBackupSettingsValue(raw, env, users, fallbackTimezone);
+  if (normalized !== null) {
+    await storage.setConfigValue(BACKUP_SETTINGS_CONFIG_KEY, normalized);
+  }
+}
+
+export async function normalizeImportedBackupSettingsValue(
+  raw: string | null,
+  env: Env,
+  users: Pick<User, 'id' | 'publicKey' | 'role' | 'status'>[],
+  fallbackTimezone: string = 'UTC'
+): Promise<string | null> {
+  if (!raw) return null;
   const envelope = parseBackupSettingsEnvelope(raw);
   if (envelope) {
     try {
       const decrypted = await decryptBackupSettingsRuntime(raw, env);
       const settings = parseBackupSettings(decrypted, fallbackTimezone);
-      await saveBackupSettings(storage, env, settings);
+      const hasPortableAdmins = users.some(
-      return;
+        (user) => user.role === 'admin' && user.status === 'active' && typeof user.publicKey === 'string' && user.publicKey.trim().length > 0
+      );
+      if (!hasPortableAdmins) {
+        return serializeBackupSettings(settings);
+      }
+      return encryptBackupSettingsEnvelope(serializeBackupSettings(settings), env, users);
     } catch {
       // Keep imported portable recovery data intact until an admin signs in and repairs it.
-      return;
+      return raw;
     }
   }
   const settings = parseBackupSettings(raw, fallbackTimezone);
-  await saveBackupSettings(storage, env, settings);
+  const hasPortableAdmins = users.some(
+    (user) => user.role === 'admin' && user.status === 'active' && typeof user.publicKey === 'string' && user.publicKey.trim().length > 0
+  );
+  if (!hasPortableAdmins) {
+    return serializeBackupSettings(settings);
+  }
+  return encryptBackupSettingsEnvelope(serializeBackupSettings(settings), env, users);
 }
 
 export async function getBackupSettingsRepairState(storage: StorageService, env: Env, fallbackTimezone: string = 'UTC'): Promise<BackupSettingsRepairState> {

src/services/backup-import.ts

@@ -1,7 +1,6 @@
-import type { Env } from '../types';
+import type { Env, User } from '../types';
-import { StorageService } from './storage';
 import { KV_MAX_OBJECT_BYTES, deleteBlobObject, getAttachmentObjectKey, getBlobStorageKind, putBlobObject } from './blob-store';
-import { normalizeImportedBackupSettings } from './backup-config';
+import { BACKUP_SETTINGS_CONFIG_KEY, normalizeImportedBackupSettingsValue } from './backup-config';
 import {
   type BackupManifestAttachmentBlob,
   type BackupPayload,
@@ -10,6 +9,26 @@ import {
 } from './backup-archive';
 
 type SqlRow = Record<string, string | number | null>;
+type BackupTableName =
+  | 'config'
+  | 'users'
+  | 'user_revisions'
+  | 'folders'
+  | 'ciphers'
+  | 'attachments';
+
+const BACKUP_TABLES: BackupTableName[] = [
+  'config',
+  'users',
+  'user_revisions',
+  'folders',
+  'ciphers',
+  'attachments',
+];
+
+function shadowTableName(table: BackupTableName): string {
+  return `${table}__restore`;
+}
 
 export interface BackupImportResultBody {
   object: 'instance-backup-import';
@@ -43,6 +62,81 @@ async function queryRows(db: D1Database, sql: string, ...values: unknown[]): Pro
   return (response.results || []).map((row) => ({ ...row }));
 }
 
+async function getTableCreateSql(db: D1Database, table: BackupTableName): Promise<string> {
+  const row = await db
+    .prepare("SELECT sql FROM sqlite_master WHERE type = 'table' AND name = ?")
+    .bind(table)
+    .first<{ sql: string | null }>();
+  const sql = String(row?.sql || '').trim();
+  if (!sql) {
+    throw new Error(`Restore shadow schema is missing table definition for ${table}`);
+  }
+  return sql;
+}
+
+function buildShadowTableCreateSql(createSql: string, table: BackupTableName): string {
+  const tablePattern = new RegExp(`^CREATE TABLE(?:\\s+IF NOT EXISTS)?\\s+(?:\"${table}\"|${table})(?=\\s*\\()`, 'i');
+  let next = createSql.replace(tablePattern, `CREATE TABLE "${shadowTableName(table)}"`);
+  if (next === createSql) {
+    throw new Error(`Restore shadow schema could not rewrite CREATE TABLE statement for ${table}`);
+  }
+  for (const currentTable of BACKUP_TABLES) {
+    const referencePattern = new RegExp(`\\bREFERENCES\\s+(?:\"${currentTable}\"|${currentTable})(?=\\s*\\()`, 'gi');
+    next = next.replace(
+      referencePattern,
+      `REFERENCES "${shadowTableName(currentTable)}"`
+    );
+  }
+  return next;
+}
+
+async function resetRestoreArtifacts(db: D1Database): Promise<void> {
+  const dropStatements = BACKUP_TABLES
+    .slice()
+    .reverse()
+    .map((table) => db.prepare(`DROP TABLE IF EXISTS ${shadowTableName(table)}`));
+  if (dropStatements.length) {
+    await db.batch(dropStatements);
+  }
+}
+
+async function createShadowTables(db: D1Database): Promise<void> {
+  const createStatements: D1PreparedStatement[] = [];
+  for (const table of BACKUP_TABLES) {
+    const createSql = await getTableCreateSql(db, table);
+    createStatements.push(db.prepare(buildShadowTableCreateSql(createSql, table)));
+  }
+  await db.batch(createStatements);
+}
+
+async function validateShadowTableCounts(
+  db: D1Database,
+  expectedCounts: Partial<Record<BackupTableName, number>>
+): Promise<void> {
+  await Promise.all(BACKUP_TABLES.map(async (table) => {
+    const expected = expectedCounts[table] ?? 0;
+    const row = await db.prepare(`SELECT COUNT(*) AS count FROM ${shadowTableName(table)}`).first<{ count: number }>();
+    const actual = Number(row?.count || 0);
+    if (actual !== expected) {
+      throw new Error(`Restore shadow validation failed for ${table}: expected ${expected}, received ${actual}`);
+    }
+  }));
+}
+
+async function swapShadowTablesIntoPlace(db: D1Database): Promise<void> {
+  const statements: D1PreparedStatement[] = [];
+  // Commit by replacing live table contents from validated shadow tables.
+  // This avoids D1 schema-rename edge cases while keeping current data intact
+  // until the final batch succeeds.
+  for (const sql of buildResetImportTargetStatements(db)) {
+    statements.push(sql);
+  }
+  for (const table of BACKUP_TABLES) {
+    statements.push(db.prepare(`INSERT INTO ${table} SELECT * FROM ${shadowTableName(table)}`));
+  }
+  await db.batch(statements);
+}
+
 async function ensureImportTargetIsFresh(db: D1Database): Promise<void> {
   const counts = await Promise.all([
     db.prepare('SELECT COUNT(*) AS count FROM ciphers').first<{ count: number }>(),
@@ -61,18 +155,9 @@ function buildResetImportTargetStatements(db: D1Database): D1PreparedStatement[]
     'DELETE FROM attachments',
     'DELETE FROM ciphers',
     'DELETE FROM folders',
-    'DELETE FROM sends',
-    'DELETE FROM trusted_two_factor_device_tokens',
-    'DELETE FROM devices',
-    'DELETE FROM refresh_tokens',
-    'DELETE FROM invites',
-    'DELETE FROM audit_logs',
     'DELETE FROM user_revisions',
     'DELETE FROM users',
     'DELETE FROM config',
-    'DELETE FROM login_attempts_ip',
-    'DELETE FROM api_rate_limits',
-    'DELETE FROM used_attachment_download_tokens',
   ].map((sql) => db.prepare(sql));
 }
 
@@ -119,10 +204,90 @@ interface AttachmentRestoreResult {
 }
 
 interface RemoteAttachmentSource {
-  hasAttachment(blobName: string): Promise<boolean>;
   loadAttachment(blobName: string): Promise<Uint8Array | null>;
 }
 
+export interface BackupRestoreProgressEvent {
+  source: 'local' | 'remote';
+  step: string;
+  fileName: string;
+  stageTitle: string;
+  stageDetail: string;
+  replaceExisting: boolean;
+  done?: boolean;
+  ok?: boolean;
+  error?: string | null;
+}
+
+export type BackupRestoreProgressReporter = (event: BackupRestoreProgressEvent) => Promise<void> | void;
+
+function attachmentRowKey(row: SqlRow): string {
+  const attachmentId = String(row.id || '').trim();
+  const cipherId = String(row.cipher_id || '').trim();
+  return `${cipherId}/${attachmentId}`;
+}
+
+function cloneRows(rows: SqlRow[]): SqlRow[] {
+  return rows.map((row) => ({ ...row }));
+}
+
+function upsertConfigRow(rows: SqlRow[], key: string, value: string): SqlRow[] {
+  let replaced = false;
+  const nextRows = rows.map((row) => {
+    if (String(row.key || '').trim() !== key) return { ...row };
+    replaced = true;
+    return { ...row, key, value };
+  });
+  if (!replaced) {
+    nextRows.push({ key, value });
+  }
+  return nextRows;
+}
+
+async function prepareImportedConfigRows(
+  env: Env,
+  configRows: SqlRow[],
+  userRows: SqlRow[]
+): Promise<SqlRow[]> {
+  let nextConfigRows = cloneRows(configRows || []);
+  const rawBackupSettings = nextConfigRows.find((row) => String(row.key || '').trim() === BACKUP_SETTINGS_CONFIG_KEY);
+  const normalizedBackupSettings = await normalizeImportedBackupSettingsValue(
+    typeof rawBackupSettings?.value === 'string' ? rawBackupSettings.value : null,
+    env,
+    userRows.map((row) => ({
+      id: String(row.id || '').trim(),
+      publicKey: typeof row.public_key === 'string' ? row.public_key : null,
+      role: String(row.role || '').trim() as User['role'],
+      status: String(row.status || '').trim() as User['status'],
+    })),
+    'UTC'
+  );
+  if (normalizedBackupSettings !== null) {
+    nextConfigRows = upsertConfigRow(nextConfigRows, BACKUP_SETTINGS_CONFIG_KEY, normalizedBackupSettings);
+  }
+  nextConfigRows = upsertConfigRow(nextConfigRows, 'registered', 'true');
+  return nextConfigRows;
+}
+
+async function importPreparedBackupRows(db: D1Database, payload: BackupPayload['db'], env: Env): Promise<BackupPayload['db']> {
+  const preparedDb: BackupPayload['db'] = {
+    config: await prepareImportedConfigRows(env, payload.config || [], payload.users || []),
+    users: cloneRows(payload.users || []).map((row) => ({
+      ...row,
+      verify_devices: row.verify_devices ?? 1,
+    })),
+    user_revisions: cloneRows(payload.user_revisions || []),
+    folders: cloneRows(payload.folders || []),
+    ciphers: cloneRows(payload.ciphers || []).map((row) => ({
+      ...row,
+      archived_at: row.archived_at ?? null,
+    })),
+    attachments: cloneRows(payload.attachments || []),
+  };
+  await importBackupRows(db, preparedDb, true);
+  return preparedDb;
+}
+
 function prepareImportPayloadForTarget(env: Env, payload: BackupPayload, files: Record<string, Uint8Array>): PreparedBackupImportPayload {
   const storageKind = getBlobStorageKind(env);
   if (storageKind === 'r2') {
@@ -147,7 +312,7 @@ function prepareImportPayloadForTarget(env: Env, payload: BackupPayload, files:
       };
     });
 
-    return {
+    const result = {
       payload: {
         ...payload,
         db: {
@@ -161,6 +326,7 @@ function prepareImportPayloadForTarget(env: Env, payload: BackupPayload, files:
         items: skippedItems,
       },
     };
+    return result;
   }
 
   const oversizedAttachmentPaths = new Set<string>();
@@ -197,7 +363,7 @@ function prepareImportPayloadForTarget(env: Env, payload: BackupPayload, files:
     throw new Error('Backup restore requires ATTACHMENTS_KV when using KV blob storage');
   }
 
-  return {
+  const result = {
     payload: nextPayload,
     skipped: {
       reason: skippedItems.length ? KV_BLOB_SKIP_REASON : null,
@@ -205,6 +371,7 @@ function prepareImportPayloadForTarget(env: Env, payload: BackupPayload, files:
       items: skippedItems,
     },
   };
+  return result;
 }
 
 function buildInsertStatements(db: D1Database, table: string, columns: string[], rows: SqlRow[], upsert = false): D1PreparedStatement[] {
@@ -214,6 +381,16 @@ function buildInsertStatements(db: D1Database, table: string, columns: string[],
   return rows.map((row) => db.prepare(sql).bind(...columns.map((column) => row[column] ?? null)));
 }
 
+async function runInsertBatch(db: D1Database, table: string, statements: D1PreparedStatement[]): Promise<void> {
+  if (!statements.length) return;
+  try {
+    await db.batch(statements);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : String(error);
+    throw new Error(`Restore insert failed for ${table}: ${message}`);
+  }
+}
+
 async function restoreBlobFiles(env: Env, db: BackupPayload['db'], files: Record<string, Uint8Array>): Promise<AttachmentRestoreResult> {
   const restoredAttachments: SqlRow[] = [];
   const skippedItems: BackupImportSkipSummary['items'] = [];
@@ -300,14 +477,10 @@ async function prepareRemoteAttachmentPayload(
       skippedItems.push({ kind: 'attachment', path, sizeBytes });
       continue;
     }
-    if (!(await source.hasAttachment(ref.blobName))) {
-      skippedItems.push({ kind: 'attachment', path, sizeBytes });
-      continue;
-    }
     nextAttachments.push(row);
   }
 
-  return {
+  const result = {
     payload: {
       ...payload,
       db: {
@@ -321,16 +494,18 @@ async function prepareRemoteAttachmentPayload(
       items: skippedItems,
     },
   };
+  return result;
 }
 
-async function removeAttachmentRows(db: D1Database, attachmentRows: SqlRow[]): Promise<void> {
+async function removeAttachmentRows(db: D1Database, attachmentRows: SqlRow[], useShadowTable: boolean = false): Promise<void> {
   if (!attachmentRows.length) return;
+  const tableName = useShadowTable ? shadowTableName('attachments') : 'attachments';
   const statements = attachmentRows
     .map((row) => {
       const attachmentId = String(row.id || '').trim();
       const cipherId = String(row.cipher_id || '').trim();
       if (!attachmentId || !cipherId) return null;
-      return db.prepare('DELETE FROM attachments WHERE id = ? AND cipher_id = ?').bind(attachmentId, cipherId);
+      return db.prepare(`DELETE FROM ${tableName} WHERE id = ? AND cipher_id = ?`).bind(attachmentId, cipherId);
     })
     .filter((statement): statement is D1PreparedStatement => !!statement);
   if (!statements.length) return;
@@ -406,36 +581,58 @@ async function cleanupOrphanedBlobFiles(env: Env, beforeKeys: Set<string>, after
   }
 }
 
-async function importBackupRows(db: D1Database, payload: BackupPayload['db']): Promise<void> {
+async function importBackupRows(db: D1Database, payload: BackupPayload['db'], useShadowTables: boolean = false): Promise<void> {
-  const statements: D1PreparedStatement[] = [
+  const tableName = (table: BackupTableName): string => (useShadowTables ? shadowTableName(table) : table);
-    ...buildResetImportTargetStatements(db),
+  await runInsertBatch(
-    ...buildInsertStatements(db, 'config', ['key', 'value'], payload.config || [], true),
-    ...buildInsertStatements(
     db,
-      'users',
+    tableName('config'),
-      ['id', 'email', 'name', 'master_password_hint', 'master_password_hash', 'key', 'private_key', 'public_key', 'kdf_type', 'kdf_iterations', 'kdf_memory', 'kdf_parallelism', 'security_stamp', 'role', 'status', 'totp_secret', 'totp_recovery_code', 'created_at', 'updated_at'],
+    buildInsertStatements(db, tableName('config'), ['key', 'value'], payload.config || [], true)
+  );
+  await runInsertBatch(
+    db,
+    tableName('users'),
+    buildInsertStatements(
+      db,
+      tableName('users'),
+      ['id', 'email', 'name', 'master_password_hint', 'master_password_hash', 'key', 'private_key', 'public_key', 'kdf_type', 'kdf_iterations', 'kdf_memory', 'kdf_parallelism', 'security_stamp', 'role', 'status', 'verify_devices', 'totp_secret', 'totp_recovery_code', 'created_at', 'updated_at'],
       payload.users || []
-    ),
+    )
-    ...buildInsertStatements(db, 'user_revisions', ['user_id', 'revision_date'], payload.user_revisions || [], true),
+  );
-    ...buildInsertStatements(db, 'folders', ['id', 'user_id', 'name', 'created_at', 'updated_at'], payload.folders || []),
+  await runInsertBatch(
-    ...buildInsertStatements(
     db,
-      'ciphers',
+    tableName('user_revisions'),
-      ['id', 'user_id', 'type', 'folder_id', 'name', 'notes', 'favorite', 'data', 'reprompt', 'key', 'created_at', 'updated_at', 'deleted_at'],
+    buildInsertStatements(db, tableName('user_revisions'), ['user_id', 'revision_date'], payload.user_revisions || [], true)
+  );
+  await runInsertBatch(
+    db,
+    tableName('folders'),
+    buildInsertStatements(db, tableName('folders'), ['id', 'user_id', 'name', 'created_at', 'updated_at'], payload.folders || [])
+  );
+  await runInsertBatch(
+    db,
+    tableName('ciphers'),
+    buildInsertStatements(
+      db,
+      tableName('ciphers'),
+      ['id', 'user_id', 'type', 'folder_id', 'name', 'notes', 'favorite', 'data', 'reprompt', 'key', 'created_at', 'updated_at', 'archived_at', 'deleted_at'],
       payload.ciphers || []
-    ),
+    )
-    ...buildInsertStatements(db, 'attachments', ['id', 'cipher_id', 'file_name', 'size', 'size_name', 'key'], payload.attachments || []),
+  );
-  ];
+  await runInsertBatch(
-  await db.batch(statements);
+    db,
+    tableName('attachments'),
+    buildInsertStatements(db, tableName('attachments'), ['id', 'cipher_id', 'file_name', 'size', 'size_name', 'key'], payload.attachments || [])
+  );
 }
 
 export async function importBackupArchiveBytes(
   archiveBytes: Uint8Array,
   env: Env,
   actorUserId: string,
-  replaceExisting: boolean
+  replaceExisting: boolean,
+  progress?: BackupRestoreProgressReporter,
+  fileName: string = 'nodewarden_backup.zip'
 ): Promise<BackupImportExecutionResult> {
-  const storage = new StorageService(env.DB);
   const parsed = parseBackupArchive(archiveBytes);
   validateBackupPayloadContents(parsed.payload, parsed.files);
   const prepared = prepareImportPayloadForTarget(env, parsed.payload, parsed.files);
@@ -448,20 +645,83 @@ export async function importBackupArchiveBytes(
     }
   }
 
+  await resetRestoreArtifacts(env.DB);
   const previousBlobKeys = replaceExisting ? await collectCurrentBlobKeys(env.DB) : new Set<string>();
-  const { db } = prepared.payload;
+  try {
-  await importBackupRows(env.DB, db);
+    await progress?.({
-  await normalizeImportedBackupSettings(storage, env, 'UTC');
+      source: 'local',
+      step: 'local_create_shadow',
+      fileName,
+      stageTitle: 'txt_backup_restore_progress_local_shadow_title',
+      stageDetail: 'txt_backup_restore_progress_local_shadow_detail',
+      replaceExisting,
+    });
+    await createShadowTables(env.DB);
+    await progress?.({
+      source: 'local',
+      step: 'local_import_data',
+      fileName,
+      stageTitle: 'txt_backup_restore_progress_local_data_title',
+      stageDetail: 'txt_backup_restore_progress_local_data_detail',
+      replaceExisting,
+    });
+    const db = await importPreparedBackupRows(env.DB, prepared.payload.db, env);
+    await validateShadowTableCounts(env.DB, {
+      config: (db.config || []).length,
+      users: (db.users || []).length,
+      user_revisions: (db.user_revisions || []).length,
+      folders: (db.folders || []).length,
+      ciphers: (db.ciphers || []).length,
+      attachments: (db.attachments || []).length,
+    });
 
+    await progress?.({
+      source: 'local',
+      step: 'local_restore_files',
+      fileName,
+      stageTitle: 'txt_backup_restore_progress_local_files_title',
+      stageDetail: 'txt_backup_restore_progress_local_files_detail',
+      replaceExisting,
+    });
     const restored = await restoreBlobFiles(env, db, parsed.files);
-  const failedRestoreRows = (db.attachments || []).filter((row) => !restored.restoredAttachments.includes(row));
+    const restoredAttachmentKeys = new Set((restored.restoredAttachments || []).map(attachmentRowKey));
-  await removeAttachmentRows(env.DB, failedRestoreRows);
+    const failedRestoreRows = (db.attachments || []).filter((row) => !restoredAttachmentKeys.has(attachmentRowKey(row)));
+    await removeAttachmentRows(env.DB, failedRestoreRows, true).catch(() => undefined);
+    await validateShadowTableCounts(env.DB, {
+      config: (db.config || []).length,
+      users: (db.users || []).length,
+      user_revisions: (db.user_revisions || []).length,
+      folders: (db.folders || []).length,
+      ciphers: (db.ciphers || []).length,
+      attachments: restored.restoredAttachments.length,
+    });
+    await progress?.({
+      source: 'local',
+      step: 'local_finalize',
+      fileName,
+      stageTitle: 'txt_backup_restore_progress_local_finalize_title',
+      stageDetail: 'txt_backup_restore_progress_local_finalize_detail',
+      replaceExisting,
+    });
+    await swapShadowTablesIntoPlace(env.DB);
+    await resetRestoreArtifacts(env.DB).catch(() => undefined);
     if (replaceExisting && previousBlobKeys.size) {
-    await cleanupOrphanedBlobFiles(env, previousBlobKeys, await collectCurrentBlobKeys(env.DB));
+      const nextBlobKeys = await collectCurrentBlobKeys(env.DB).catch(() => null);
+      if (nextBlobKeys) {
+        await cleanupOrphanedBlobFiles(env, previousBlobKeys, nextBlobKeys).catch(() => undefined);
+      }
     }
 
-  await storage.setRegistered();
+    await progress?.({
-
+      source: 'local',
+      step: 'local_complete',
+      fileName,
+      stageTitle: 'txt_backup_restore_progress_local_finalize_title',
+      stageDetail: 'txt_backup_restore_progress_local_finalize_detail',
+      replaceExisting,
+      done: true,
+      ok: true,
+    });
     return {
       auditActorUserId: (db.users || []).some((row) => String(row.id || '').trim() === actorUserId) ? actorUserId : null,
       result: {
@@ -482,6 +742,21 @@ export async function importBackupArchiveBytes(
         },
       },
     };
+  } catch (error) {
+    await progress?.({
+      source: 'local',
+      step: 'local_failed',
+      fileName,
+      stageTitle: 'txt_backup_restore_progress_local_finalize_title',
+      stageDetail: 'txt_backup_restore_progress_local_finalize_detail',
+      replaceExisting,
+      done: true,
+      ok: false,
+      error: error instanceof Error ? error.message : String(error),
+    });
+    await resetRestoreArtifacts(env.DB).catch(() => undefined);
+    throw error;
+  }
 }
 
 export async function importRemoteBackupArchiveBytes(
@@ -489,9 +764,10 @@ export async function importRemoteBackupArchiveBytes(
   env: Env,
   actorUserId: string,
   replaceExisting: boolean,
-  source: RemoteAttachmentSource
+  source: RemoteAttachmentSource,
+  progress?: BackupRestoreProgressReporter,
+  fileName: string = 'nodewarden_backup.zip'
 ): Promise<BackupImportExecutionResult> {
-  const storage = new StorageService(env.DB);
   const parsed = parseBackupArchive(archiveBytes, { allowExternalAttachmentBlobs: true });
   const preparedRemote = await prepareRemoteAttachmentPayload(env, parsed.payload, parsed.files, source);
   validateBackupPayloadContents(preparedRemote.payload, parsed.files, { allowExternalAttachmentBlobs: true });
@@ -504,21 +780,84 @@ export async function importRemoteBackupArchiveBytes(
     }
   }
 
+  await resetRestoreArtifacts(env.DB);
   const previousBlobKeys = replaceExisting ? await collectCurrentBlobKeys(env.DB) : new Set<string>();
-  const { db } = preparedRemote.payload;
+  try {
-  await importBackupRows(env.DB, db);
+    await progress?.({
-  await normalizeImportedBackupSettings(storage, env, 'UTC');
+      source: 'remote',
+      step: 'remote_create_shadow',
+      fileName,
+      stageTitle: 'txt_backup_restore_progress_remote_shadow_title',
+      stageDetail: 'txt_backup_restore_progress_remote_shadow_detail',
+      replaceExisting,
+    });
+    await createShadowTables(env.DB);
+    await progress?.({
+      source: 'remote',
+      step: 'remote_import_data',
+      fileName,
+      stageTitle: 'txt_backup_restore_progress_remote_data_title',
+      stageDetail: 'txt_backup_restore_progress_remote_data_detail',
+      replaceExisting,
+    });
+    const db = await importPreparedBackupRows(env.DB, preparedRemote.payload.db, env);
+    await validateShadowTableCounts(env.DB, {
+      config: (db.config || []).length,
+      users: (db.users || []).length,
+      user_revisions: (db.user_revisions || []).length,
+      folders: (db.folders || []).length,
+      ciphers: (db.ciphers || []).length,
+      attachments: (db.attachments || []).length,
+    });
 
+    await progress?.({
+      source: 'remote',
+      step: 'remote_restore_files',
+      fileName,
+      stageTitle: 'txt_backup_restore_progress_remote_files_title',
+      stageDetail: 'txt_backup_restore_progress_remote_files_detail',
+      replaceExisting,
+    });
     const restored = await restoreRemoteAttachmentFiles(env, preparedRemote.payload, parsed.files, source);
-  const failedRestoreRows = (db.attachments || []).filter((row) => !restored.restoredAttachments.includes(row));
+    const restoredAttachmentKeys = new Set((restored.restoredAttachments || []).map(attachmentRowKey));
-  await removeAttachmentRows(env.DB, failedRestoreRows);
+    const failedRestoreRows = (db.attachments || []).filter((row) => !restoredAttachmentKeys.has(attachmentRowKey(row)));
+    await removeAttachmentRows(env.DB, failedRestoreRows, true).catch(() => undefined);
+    await validateShadowTableCounts(env.DB, {
+      config: (db.config || []).length,
+      users: (db.users || []).length,
+      user_revisions: (db.user_revisions || []).length,
+      folders: (db.folders || []).length,
+      ciphers: (db.ciphers || []).length,
+      attachments: restored.restoredAttachments.length,
+    });
+    await progress?.({
+      source: 'remote',
+      step: 'remote_finalize',
+      fileName,
+      stageTitle: 'txt_backup_restore_progress_remote_finalize_title',
+      stageDetail: 'txt_backup_restore_progress_remote_finalize_detail',
+      replaceExisting,
+    });
+    await swapShadowTablesIntoPlace(env.DB);
+    await resetRestoreArtifacts(env.DB).catch(() => undefined);
 
     if (replaceExisting && previousBlobKeys.size) {
-    await cleanupOrphanedBlobFiles(env, previousBlobKeys, await collectCurrentBlobKeys(env.DB));
+      const nextBlobKeys = await collectCurrentBlobKeys(env.DB).catch(() => null);
+      if (nextBlobKeys) {
+        await cleanupOrphanedBlobFiles(env, previousBlobKeys, nextBlobKeys).catch(() => undefined);
+      }
     }
 
-  await storage.setRegistered();
+    await progress?.({
-
+      source: 'remote',
+      step: 'remote_complete',
+      fileName,
+      stageTitle: 'txt_backup_restore_progress_remote_finalize_title',
+      stageDetail: 'txt_backup_restore_progress_remote_finalize_detail',
+      replaceExisting,
+      done: true,
+      ok: true,
+    });
     const finalSkippedItems = [...preparedRemote.skipped.items, ...restored.skipped.items];
     const finalSkippedReason = finalSkippedItems.length
       ? restored.skipped.reason || preparedRemote.skipped.reason
@@ -544,4 +883,19 @@ export async function importRemoteBackupArchiveBytes(
         },
       },
     };
+  } catch (error) {
+    await progress?.({
+      source: 'remote',
+      step: 'remote_failed',
+      fileName,
+      stageTitle: 'txt_backup_restore_progress_remote_finalize_title',
+      stageDetail: 'txt_backup_restore_progress_remote_finalize_detail',
+      replaceExisting,
+      done: true,
+      ok: false,
+      error: error instanceof Error ? error.message : String(error),
+    });
+    await resetRestoreArtifacts(env.DB).catch(() => undefined);
+    throw error;
+  }
 }

src/services/backup-uploader.ts

@@ -250,19 +250,50 @@ async function ensureWebDavDirectory(baseUrl: string, directoryPath: string, aut
   }
 }
 
+async function ensureWebDavDirectoryCached(
+  baseUrl: string,
+  directoryPath: string,
+  authHeader: string,
+  ensuredDirectories: Set<string>
+): Promise<void> {
+  const segments = trimSlashes(directoryPath).split('/').filter(Boolean);
+  let current = '';
+  for (const segment of segments) {
+    current = buildJoinedPath(current, segment);
+    if (ensuredDirectories.has(current)) continue;
+    const url = buildWebDavUrl(baseUrl, current);
+    const response = await fetch(url, {
+      method: 'MKCOL',
+      headers: {
+        Authorization: authHeader,
+      },
+    });
+    if ([200, 201, 204, 301, 302, 405].includes(response.status)) {
+      ensuredDirectories.add(current);
+      continue;
+    }
+    throw new Error(`WebDAV directory creation failed: ${response.status}`);
+  }
+}
+
 async function putToWebDav(
   config: WebDavBackupDestination,
   relativePath: string,
   bytes: Uint8Array,
-  options: RemoteBackupFilePutOptions = {}
+  options: RemoteBackupFilePutOptions = {},
+  ensuredDirectories?: Set<string>
 ): Promise<void> {
   const authHeader = toBasicAuthHeader(config.username, config.password);
   const remoteFilePath = buildJoinedPath(config.remotePath, relativePath);
   const remoteDir = parentPath(remoteFilePath);
 
   if (remoteDir) {
+    if (ensuredDirectories) {
+      await ensureWebDavDirectoryCached(config.baseUrl, remoteDir, authHeader, ensuredDirectories);
+    } else {
       await ensureWebDavDirectory(config.baseUrl, remoteDir, authHeader);
     }
+  }
 
   const response = await fetch(buildWebDavUrl(config.baseUrl, remoteFilePath), {
     method: 'PUT',
@@ -608,6 +639,16 @@ interface ConfiguredDestinationAdapter {
   exists: (config: WebDavBackupDestination | E3BackupDestination, relativePath: string) => Promise<boolean>;
 }
 
+export interface RemoteBackupTransferSession {
+  provider: BackupDestinationType;
+  uploadArchive(archive: Uint8Array, fileName: string): Promise<BackupUploadResult>;
+  putFile(relativePath: string, bytes: Uint8Array, options?: RemoteBackupFilePutOptions): Promise<void>;
+  list(relativePath: string): Promise<RemoteBackupListResult>;
+  download(relativePath: string): Promise<RemoteBackupFile>;
+  deleteFile(relativePath: string): Promise<void>;
+  exists(relativePath: string): Promise<boolean>;
+}
+
 function resolveConfiguredDestinationAdapter(
   destination: BackupDestinationRecord
 ): ConfiguredDestinationAdapter {
@@ -641,35 +682,62 @@ function resolveConfiguredDestinationAdapter(
   throw new Error('Unsupported backup destination type');
 }
 
+export function createRemoteBackupTransferSession(destination: BackupDestinationRecord): RemoteBackupTransferSession {
+  const adapter = resolveConfiguredDestinationAdapter(destination);
+  const ensuredDirectories = adapter.provider === 'webdav' ? new Set<string>() : null;
+
+  const putFile = async (relativePath: string, bytes: Uint8Array, options: RemoteBackupFilePutOptions = {}): Promise<void> => {
+    const normalized = normalizeRelativePath(relativePath);
+    if (adapter.provider === 'webdav' && ensuredDirectories) {
+      await putToWebDav(adapter.config as WebDavBackupDestination, normalized, bytes, options, ensuredDirectories);
+      return;
+    }
+    await adapter.putFile(adapter.config, normalized, bytes, options);
+  };
+
+  return {
+    provider: adapter.provider,
+    uploadArchive: async (archive: Uint8Array, fileName: string) => {
+      await putFile(fileName, archive, { contentType: 'application/zip' });
+      return {
+        provider: adapter.provider,
+        remotePath: adapter.provider === 'webdav'
+          ? buildJoinedPath((adapter.config as WebDavBackupDestination).remotePath, fileName)
+          : normalizeE3ObjectKey(adapter.config as E3BackupDestination, fileName),
+      };
+    },
+    putFile,
+    list: async (relativePath: string) => adapter.list(adapter.config, relativePath),
+    download: async (relativePath: string) => adapter.download(adapter.config, relativePath),
+    deleteFile: async (relativePath: string) => adapter.deleteFile(adapter.config, normalizeRelativePath(relativePath)),
+    exists: async (relativePath: string) => adapter.exists(adapter.config, normalizeRelativePath(relativePath)),
+  };
+}
+
 export async function uploadBackupArchive(
   destination: BackupDestinationRecord,
   archive: Uint8Array,
   fileName: string
 ): Promise<BackupUploadResult> {
-  const adapter = resolveConfiguredDestinationAdapter(destination);
+  return createRemoteBackupTransferSession(destination).uploadArchive(archive, fileName);
-  return adapter.upload(adapter.config, archive, fileName);
 }
 
 export async function listRemoteBackupEntries(destination: BackupDestinationRecord, relativePath: string): Promise<RemoteBackupListResult> {
-  const adapter = resolveConfiguredDestinationAdapter(destination);
+  return createRemoteBackupTransferSession(destination).list(relativePath);
-  return adapter.list(adapter.config, relativePath);
 }
 
 export async function downloadRemoteBackupFile(destination: BackupDestinationRecord, relativePath: string): Promise<RemoteBackupFile> {
-  const adapter = resolveConfiguredDestinationAdapter(destination);
+  return createRemoteBackupTransferSession(destination).download(relativePath);
-  return adapter.download(adapter.config, relativePath);
 }
 
 export async function deleteRemoteBackupFile(destination: BackupDestinationRecord, relativePath: string): Promise<void> {
   const normalized = ensureRemoteRestoreCandidate(relativePath);
-  const adapter = resolveConfiguredDestinationAdapter(destination);
+  await createRemoteBackupTransferSession(destination).deleteFile(normalized);
-  await adapter.deleteFile(adapter.config, normalized);
 }
 
 export async function remoteBackupFileExists(destination: BackupDestinationRecord, relativePath: string): Promise<boolean> {
   const normalized = normalizeRelativePath(relativePath);
-  const adapter = resolveConfiguredDestinationAdapter(destination);
+  return createRemoteBackupTransferSession(destination).exists(normalized);
-  return adapter.exists(adapter.config, normalized);
 }
 
 export async function uploadRemoteBackupFile(
@@ -679,8 +747,7 @@ export async function uploadRemoteBackupFile(
   options: RemoteBackupFilePutOptions = {}
 ): Promise<void> {
   const normalized = normalizeRelativePath(relativePath);
-  const adapter = resolveConfiguredDestinationAdapter(destination);
+  await createRemoteBackupTransferSession(destination).putFile(normalized, bytes, options);
-  await adapter.putFile(adapter.config, normalized, bytes, options);
 }
 
 function compareBackupItemsByRecency(a: RemoteBackupItem, b: RemoteBackupItem, preferredFileName?: string): number {

src/services/storage-cipher-repo.ts

@@ -1,5 +1,11 @@
 import type { Cipher } from '../types';
 
+function normalizeOptionalId(value: unknown): string | null {
+  if (value == null) return null;
+  const normalized = String(value).trim();
+  return normalized ? normalized : null;
+}
+
 type SafeBind = (stmt: D1PreparedStatement, ...values: any[]) => D1PreparedStatement;
 type SqlChunkSize = (fixedBindCount: number) => number;
 type UpdateRevisionDate = (userId: string) => Promise<string>;
@@ -25,12 +31,13 @@ function parseCipherRow(row: CipherRow | null | undefined): Cipher | null {
   if (!row?.data) return null;
   try {
     const parsed = JSON.parse(row.data) as Cipher;
+    const folderId = normalizeOptionalId(row.folder_id ?? parsed.folderId ?? null);
     return {
       ...parsed,
       id: row.id,
       userId: row.user_id,
       type: Number(row.type) || Number(parsed.type) || 1,
-      folderId: row.folder_id ?? parsed.folderId ?? null,
+      folderId,
       name: row.name ?? parsed.name ?? null,
       notes: row.notes ?? parsed.notes ?? null,
       favorite: row.favorite != null ? !!row.favorite : !!parsed.favorite,
@@ -60,7 +67,11 @@ export async function getCipher(db: D1Database, id: string): Promise<Cipher | nu
 }
 
 export async function saveCipher(db: D1Database, safeBind: SafeBind, cipher: Cipher): Promise<void> {
-  const data = JSON.stringify(cipher);
+  const folderId = normalizeOptionalId(cipher.folderId);
+  const data = JSON.stringify({
+    ...cipher,
+    folderId,
+  });
   const stmt = db.prepare(
     'INSERT INTO ciphers(id, user_id, type, folder_id, name, notes, favorite, data, reprompt, key, created_at, updated_at, archived_at, deleted_at) ' +
     'VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?) ' +
@@ -72,7 +83,7 @@ export async function saveCipher(db: D1Database, safeBind: SafeBind, cipher: Cip
     cipher.id,
     cipher.userId,
     Number(cipher.type) || 1,
-    cipher.folderId,
+    folderId,
     cipher.name,
     cipher.notes,
     cipher.favorite ? 1 : 0,
@@ -249,8 +260,9 @@ export async function bulkMoveCiphers(
 ): Promise<string | null> {
   if (ids.length === 0) return null;
   const now = new Date().toISOString();
+  const normalizedFolderId = normalizeOptionalId(folderId);
   const uniqueIds = sanitizeIds(ids);
-  const patch = JSON.stringify({ folderId, updatedAt: now });
+  const patch = JSON.stringify({ folderId: normalizedFolderId, updatedAt: now });
   const chunkSize = sqlChunkSize(4);
 
   for (let i = 0; i < uniqueIds.length; i += chunkSize) {
@@ -262,7 +274,7 @@ export async function bulkMoveCiphers(
          SET folder_id = ?, updated_at = ?, data = json_patch(data, ?)
          WHERE user_id = ? AND id IN (${placeholders})`
       )
-      .bind(folderId, now, patch, userId, ...chunk)
+      .bind(normalizedFolderId, now, patch, userId, ...chunk)
       .run();
   }
 

src/services/storage-schema.ts

@@ -27,6 +27,7 @@ const SCHEMA_STATEMENTS: readonly string[] = [
   'CREATE INDEX IF NOT EXISTS idx_ciphers_user_updated ON ciphers(user_id, updated_at)',
   'CREATE INDEX IF NOT EXISTS idx_ciphers_user_archived ON ciphers(user_id, archived_at)',
   'CREATE INDEX IF NOT EXISTS idx_ciphers_user_deleted ON ciphers(user_id, deleted_at)',
+  'CREATE INDEX IF NOT EXISTS idx_ciphers_user_deleted_updated ON ciphers(user_id, deleted_at, updated_at)',
 
   'CREATE TABLE IF NOT EXISTS folders (' +
   'id TEXT PRIMARY KEY, user_id TEXT NOT NULL, name TEXT NOT NULL, created_at TEXT NOT NULL, updated_at TEXT NOT NULL, ' +
@@ -47,6 +48,7 @@ const SCHEMA_STATEMENTS: readonly string[] = [
   'FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE)',
   'CREATE INDEX IF NOT EXISTS idx_sends_user_updated ON sends(user_id, updated_at)',
   'CREATE INDEX IF NOT EXISTS idx_sends_user_deletion ON sends(user_id, deletion_date)',
+  'CREATE INDEX IF NOT EXISTS idx_sends_user_updated_id ON sends(user_id, updated_at, id)',
   'ALTER TABLE sends ADD COLUMN auth_type INTEGER NOT NULL DEFAULT 2',
   'ALTER TABLE sends ADD COLUMN emails TEXT',
 

src/services/storage.ts

@@ -106,7 +106,7 @@ import {
 
 const TWO_FACTOR_REMEMBER_TTL_MS = 30 * 24 * 60 * 60 * 1000;
 const STORAGE_SCHEMA_VERSION_KEY = 'schema.version';
-const STORAGE_SCHEMA_VERSION = '2026-03-23.1';
+const STORAGE_SCHEMA_VERSION = '2026-03-30.1';
 
 // D1-backed storage.
 // Contract:

src/types/index.ts

@@ -347,7 +347,8 @@ export interface TokenResponse {
   access_token: string;
   expires_in: number;
   token_type: string;
-  refresh_token: string;
+  refresh_token?: string;
+  web_session?: boolean;
   TwoFactorToken?: string;
   Key: string;
   PrivateKey: string | null;
@@ -367,6 +368,10 @@ export interface TokenResponse {
   accountKeys?: any | null;
   UserDecryptionOptions: UserDecryptionOptions;
   userDecryptionOptions?: UserDecryptionOptions;
+  VaultKeys?: {
+    symEncKey: string;
+    symMacKey: string;
+  };
 }
 
 export interface ProfileResponse {

src/utils/passkey.ts

@@ -0,0 +1,30 @@
+export function bytesToBase64Url(bytes: Uint8Array): string {
+  let binary = '';
+  for (const b of bytes) binary += String.fromCharCode(b);
+  return btoa(binary).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/g, '');
+}
+
+export function base64UrlToBytes(input: string): Uint8Array {
+  const normalized = String(input || '').replace(/-/g, '+').replace(/_/g, '/');
+  const padded = normalized + '='.repeat((4 - (normalized.length % 4 || 4)) % 4);
+  const binary = atob(padded);
+  const out = new Uint8Array(binary.length);
+  for (let i = 0; i < binary.length; i += 1) out[i] = binary.charCodeAt(i);
+  return out;
+}
+
+export function randomChallenge(size: number = 32): string {
+  return bytesToBase64Url(crypto.getRandomValues(new Uint8Array(size)));
+}
+
+export function parseClientDataJSON(base64Url: string): { type?: string; challenge?: string; origin?: string } | null {
+  try {
+    const raw = base64UrlToBytes(base64Url);
+    const text = new TextDecoder().decode(raw);
+    const parsed = JSON.parse(text) as { type?: string; challenge?: string; origin?: string };
+    if (!parsed || typeof parsed !== 'object') return null;
+    return parsed;
+  } catch {
+    return null;
+  }
+}

src/utils/response.ts

@@ -15,12 +15,42 @@ const DEFAULT_CORS_HEADERS = [
   'X-Request-Email',
   'X-Device-Identifier',
   'X-Device-Name',
+  'X-NodeWarden-Web-Session',
 ];
 
-function getAllowedOrigin(request: Request): string | null {
+function isExtensionOrigin(origin: string): boolean {
+  return (
+    origin.startsWith('chrome-extension://')
+    || origin.startsWith('moz-extension://')
+    || origin.startsWith('safari-web-extension://')
+  );
+}
+
+function isWildcardCorsPath(path: string): boolean {
+  return (
+    path.startsWith('/icons/')
+    || path === '/config'
+    || path === '/api/config'
+    || path === '/api/version'
+  );
+}
+
+function getCorsPolicy(request: Request): { allowOrigin: string | null; allowCredentials: boolean } {
+  const url = new URL(request.url);
   const origin = request.headers.get('Origin');
-  if (!origin) return '*';
+  if (isWildcardCorsPath(url.pathname)) {
-  return origin;
+    return { allowOrigin: '*', allowCredentials: false };
+  }
+  if (!origin) {
+    return { allowOrigin: null, allowCredentials: false };
+  }
+  if (origin === url.origin) {
+    return { allowOrigin: origin, allowCredentials: true };
+  }
+  if (isExtensionOrigin(origin)) {
+    return { allowOrigin: origin, allowCredentials: false };
+  }
+  return { allowOrigin: null, allowCredentials: false };
 }
 
 function buildCorsHeaders(request: Request): Record<string, string> {
@@ -35,13 +65,14 @@ function buildCorsHeaders(request: Request): Record<string, string> {
     'Access-Control-Allow-Headers': allowHeaders.join(', '),
     'Access-Control-Expose-Headers': '*',
     'Access-Control-Max-Age': String(LIMITS.cors.preflightMaxAgeSeconds),
-    'Access-Control-Allow-Private-Network': 'true',
   };
 
-  const allowedOrigin = getAllowedOrigin(request);
+  const corsPolicy = getCorsPolicy(request);
-  if (allowedOrigin) {
+  if (corsPolicy.allowOrigin) {
-    headers['Access-Control-Allow-Origin'] = allowedOrigin;
+    headers['Access-Control-Allow-Origin'] = corsPolicy.allowOrigin;
+    if (corsPolicy.allowCredentials) {
       headers['Access-Control-Allow-Credentials'] = 'true';
+    }
     headers['Vary'] = 'Origin, Access-Control-Request-Headers';
   }
 

src/utils/user-decryption.ts

@@ -1,14 +1,21 @@
 import { User, UserDecryptionOptions } from '../types';
 
+function normalizeOptionalPublicKey(value: unknown): string {
+  if (value == null) return '';
+  return String(value);
+}
+
 export function buildAccountKeys(user: Pick<User, 'privateKey' | 'publicKey'>): Record<string, unknown> | null {
-  if (!user.privateKey || !user.publicKey) {
+  if (!user.privateKey) {
     return null;
   }
 
+  const publicKey = normalizeOptionalPublicKey(user.publicKey);
+
   return {
     publicKeyEncryptionKeyPair: {
       wrappedPrivateKey: user.privateKey,
-      publicKey: user.publicKey,
+      publicKey,
       Object: 'publicKeyEncryptionKeyPair',
     },
     Object: 'privateKeys',

webapp/src/App.tsx

@@ -10,8 +10,12 @@ import JwtWarningPage from '@/components/JwtWarningPage';
 import {
   createAuthedFetch,
   getAuthorizedDevices,
+  clearProfileSnapshot,
   getCurrentDeviceIdentifier,
   getPasswordHint,
+  loadProfileSnapshot,
+  saveProfileSnapshot,
+  revokeCurrentSession,
   getTotpStatus,
   saveSession,
 } from '@/lib/api/auth';
@@ -39,6 +43,7 @@ import {
   performRecoverTwoFactorLogin,
   performRegistration,
   performTotpLogin,
+  hydrateLockedSession,
   performUnlock,
   type JwtUnsafeReason,
   type PendingTotp,
@@ -50,8 +55,20 @@ import useVaultSendActions from '@/hooks/useVaultSendActions';
 import { useToastManager } from '@/hooks/useToastManager';
 import { t } from '@/lib/i18n';
 import { APP_NOTIFY_EVENT, type AppNotifyDetail } from '@/lib/app-notify';
+import { dispatchBackupProgress, type BackupProgressDetail } from '@/lib/backup-restore-progress';
 import type { AppPhase, Cipher, Folder as VaultFolder, Profile, Send, SessionState } from '@/lib/types';
 
+function isBackupProgressDetail(value: unknown): value is BackupProgressDetail {
+  if (!value || typeof value !== 'object') return false;
+  const detail = value as Record<string, unknown>;
+  const operation = detail.operation;
+  return (
+    (operation === 'backup-restore' || operation === 'backup-export' || operation === 'backup-remote-run')
+    && typeof detail.step === 'string'
+    && typeof detail.fileName === 'string'
+  );
+}
+
 const IMPORT_ROUTE = '/backup/import-export';
 const IMPORT_ROUTE_PATHS = [IMPORT_ROUTE, '/tools/import', '/tools/import-export', '/tools/import-data', '/import', '/import-export'] as const;
 const IMPORT_ROUTE_ALIASES: ReadonlySet<string> = new Set(IMPORT_ROUTE_PATHS.filter((path) => path !== IMPORT_ROUTE));
@@ -62,6 +79,7 @@ const SIGNALR_RECORD_SEPARATOR = String.fromCharCode(0x1e);
 const SIGNALR_UPDATE_TYPE_SYNC_VAULT = 5;
 const SIGNALR_UPDATE_TYPE_LOG_OUT = 11;
 const SIGNALR_UPDATE_TYPE_DEVICE_STATUS = 12;
+const SIGNALR_UPDATE_TYPE_BACKUP_RESTORE_PROGRESS = 13;
 
 type ThemePreference = 'system' | 'light' | 'dark';
 const MAGNETIC_SELECTOR = '.topbar .btn, .topbar .user-chip, .side-link, .mobile-tab';
@@ -122,11 +140,12 @@ function resolveSystemTheme(): 'light' | 'dark' {
 export default function App() {
   const initialBootstrap = useMemo(() => readInitialAppBootstrapState(), []);
   const initialInviteCode = useMemo(() => readInviteCodeFromUrl(), []);
+  const initialProfileSnapshot = useMemo(() => loadProfileSnapshot(initialBootstrap.session?.email), [initialBootstrap]);
   const [pendingAuthAction, setPendingAuthAction] = useState<'login' | 'register' | 'unlock' | null>(null);
   const [location, navigate] = useLocation();
   const [phase, setPhase] = useState<AppPhase>(initialBootstrap.phase);
   const [session, setSessionState] = useState<SessionState | null>(initialBootstrap.session);
-  const [profile, setProfile] = useState<Profile | null>(null);
+  const [profile, setProfile] = useState<Profile | null>(initialProfileSnapshot);
   const [defaultKdfIterations, setDefaultKdfIterations] = useState(initialBootstrap.defaultKdfIterations);
   const [jwtWarning, setJwtWarning] = useState<{ reason: JwtUnsafeReason; minLength: number } | null>(initialBootstrap.jwtWarning);
 
@@ -153,12 +172,15 @@ export default function App() {
   const [pendingTotp, setPendingTotp] = useState<PendingTotp | null>(null);
   const [totpCode, setTotpCode] = useState('');
   const [rememberDevice, setRememberDevice] = useState(true);
+  const [totpSubmitting, setTotpSubmitting] = useState(false);
 
   const [disableTotpOpen, setDisableTotpOpen] = useState(false);
   const [disableTotpPassword, setDisableTotpPassword] = useState('');
+  const [disableTotpSubmitting, setDisableTotpSubmitting] = useState(false);
   const [recoverValues, setRecoverValues] = useState({ email: '', password: '', recoveryCode: '' });
   const [themePreference, setThemePreference] = useState<ThemePreference>(() => readThemePreference());
   const [systemTheme, setSystemTheme] = useState<'light' | 'dark'>(() => resolveSystemTheme());
+  const [unlockPreparing, setUnlockPreparing] = useState(() => initialBootstrap.phase === 'locked' && !initialProfileSnapshot?.key);
 
   const [confirm, setConfirm] = useState<AppConfirmState | null>(null);
   const [mobileLayout, setMobileLayout] = useState(false);
@@ -260,6 +282,16 @@ export default function App() {
     window.localStorage.setItem(THEME_STORAGE_KEY, themePreference);
   }, [themePreference]);
 
+  useEffect(() => {
+    saveProfileSnapshot(profile);
+  }, [profile]);
+
+  useEffect(() => {
+    if (phase === 'locked' && profile?.key && session) {
+      setUnlockPreparing(false);
+    }
+  }, [phase, profile, session]);
+
   useEffect(() => installMagneticUiFeedback(), []);
 
   function handleToggleTheme() {
@@ -321,6 +353,7 @@ export default function App() {
       setSession(boot.session);
       setProfile(boot.profile);
       setPhase(boot.phase);
+      setUnlockPreparing(boot.phase === 'locked' && !boot.profile?.key);
     })();
 
     return () => {
@@ -328,9 +361,34 @@ export default function App() {
     };
   }, [initialBootstrap]);
 
+  useEffect(() => {
+    if (phase !== 'locked' || !session) return;
+    let cancelled = false;
+    void (async () => {
+      const result = await hydrateLockedSession(session, profile);
+      if (cancelled) return;
+      if (!result.session) {
+        setSession(null);
+        setProfile(null);
+        setUnlockPreparing(false);
+        setPhase('login');
+        if (location !== '/login') navigate('/login');
+        return;
+      }
+      setSession(result.session);
+      if (result.profile) {
+        setProfile(result.profile);
+      }
+    })();
+    return () => {
+      cancelled = true;
+    };
+  }, [phase, session?.email, location, navigate]);
+
   async function finalizeLogin(login: CompletedLogin) {
     setSession(login.session);
     setProfile(login.profile);
+    setUnlockPreparing(false);
     setPendingTotp(null);
     setTotpCode('');
     setPhase('app');
@@ -377,16 +435,20 @@ export default function App() {
   }
 
   async function handleTotpVerify() {
+    if (totpSubmitting) return;
     if (!pendingTotp) return;
     if (!totpCode.trim()) {
       pushToast('error', t('txt_please_input_totp_code'));
       return;
     }
+    setTotpSubmitting(true);
     try {
       const login = await performTotpLogin(pendingTotp, totpCode, rememberDevice);
       await finalizeLogin(login);
     } catch (error) {
       pushToast('error', error instanceof Error ? error.message : t('txt_totp_verify_failed'));
+    } finally {
+      setTotpSubmitting(false);
     }
   }
 
@@ -515,6 +577,7 @@ export default function App() {
       const nextSession = await performUnlock(session, profile, unlockPassword, defaultKdfIterations);
       setSession(nextSession);
       setUnlockPassword('');
+      setUnlockPreparing(false);
       setPhase('app');
       if (location === '/' || location === '/lock') navigate('/vault');
       pushToast('success', t('txt_unlocked'));
@@ -531,14 +594,18 @@ export default function App() {
     delete nextSession.symEncKey;
     delete nextSession.symMacKey;
     setSession(nextSession);
+    setUnlockPreparing(false);
     setPhase('locked');
     navigate('/lock');
   }
 
   function logoutNow() {
+    void revokeCurrentSession(sessionRef.current);
     setConfirm(null);
     setSession(null);
+    clearProfileSnapshot();
     setProfile(null);
+    setUnlockPreparing(false);
     setPendingTotp(null);
     setPhase('login');
     navigate('/login');
@@ -570,11 +637,13 @@ export default function App() {
         onConfirmTotp={() => {}}
         onCancelTotp={() => {}}
         onUseRecoveryCode={() => {}}
+        totpSubmitting={false}
         disableTotpOpen={false}
         disableTotpPassword=""
         onDisableTotpPasswordChange={() => {}}
         onConfirmDisableTotp={() => {}}
         onCancelDisableTotp={() => {}}
+        disableTotpSubmitting={false}
       />
     );
   }
@@ -689,9 +758,6 @@ export default function App() {
                 decUsername: await decryptField(cipher.login.username || '', itemEnc, itemMac),
                 decPassword: await decryptField(cipher.login.password || '', itemEnc, itemMac),
                 decTotp: await decryptField(cipher.login.totp || '', itemEnc, itemMac),
-                fido2Credentials: Array.isArray(cipher.login.fido2Credentials)
-                  ? cipher.login.fido2Credentials.map((credential) => ({ ...credential }))
-                  : null,
                 uris: await Promise.all(
                   (cipher.login.uris || []).map(async (u) => ({
                     ...u,
@@ -872,9 +938,11 @@ export default function App() {
 
     const connect = () => {
       if (disposed) return;
+      const accessToken = session.accessToken;
+      if (!accessToken) return;
       try {
         const hubUrl = new URL('/notifications/hub', window.location.origin);
-        hubUrl.searchParams.set('access_token', session.accessToken);
+        hubUrl.searchParams.set('access_token', accessToken);
         hubUrl.protocol = hubUrl.protocol === 'https:' ? 'wss:' : 'ws:';
         socket = new WebSocket(hubUrl.toString());
       } catch {
@@ -882,6 +950,15 @@ export default function App() {
         return;
       }
 
+      let pingTimer: number | null = null;
+
+      const clearPingTimer = () => {
+        if (pingTimer !== null) {
+          window.clearInterval(pingTimer);
+          pingTimer = null;
+        }
+      };
+
       socket.addEventListener('open', () => {
         reconnectAttempts = 0;
         void refreshAuthorizedDevicesRef.current();
@@ -889,7 +966,16 @@ export default function App() {
           socket?.send(`{"protocol":"json","version":1}${SIGNALR_RECORD_SEPARATOR}`);
         } catch {
           socket?.close();
+          return;
         }
+        clearPingTimer();
+        pingTimer = window.setInterval(() => {
+          try {
+            socket?.send(`{"type":6}${SIGNALR_RECORD_SEPARATOR}`);
+          } catch {
+            // send failure will trigger close event
+          }
+        }, 15_000);
       });
 
       socket.addEventListener('message', (event) => {
@@ -908,6 +994,11 @@ export default function App() {
             void refreshAuthorizedDevicesRef.current();
             continue;
           }
+          if (updateType === SIGNALR_UPDATE_TYPE_BACKUP_RESTORE_PROGRESS) {
+            const payload = frame.arguments?.[0]?.Payload;
+            if (isBackupProgressDetail(payload)) dispatchBackupProgress(payload);
+            continue;
+          }
           if (updateType !== SIGNALR_UPDATE_TYPE_SYNC_VAULT) continue;
           const contextId = String(frame.arguments?.[0]?.ContextId || '').trim();
           if (contextId && contextId === getCurrentDeviceIdentifier()) continue;
@@ -917,6 +1008,7 @@ export default function App() {
 
       socket.addEventListener('close', () => {
         socket = null;
+        clearPingTimer();
         void refreshAuthorizedDevicesRef.current();
         scheduleReconnect();
       });
@@ -935,9 +1027,11 @@ export default function App() {
     return () => {
       disposed = true;
       clearReconnectTimer();
-      if (socket && socket.readyState === WebSocket.OPEN) {
+      if (socket) {
+        const s = socket;
+        socket = null;
         try {
-          socket.close();
+          s.close();
         } catch {
           // ignore close races
         }
@@ -1078,6 +1172,7 @@ export default function App() {
     onBulkMoveVaultItems: vaultSendActions.bulkMoveVaultItems,
     onVerifyMasterPassword: vaultSendActions.verifyMasterPassword,
     onCreateFolder: vaultSendActions.createFolder,
+    onRenameFolder: vaultSendActions.renameFolder,
     onDeleteFolder: vaultSendActions.deleteFolder,
     onBulkDeleteFolders: vaultSendActions.bulkDeleteFolders,
     onDownloadVaultAttachment: vaultSendActions.downloadVaultAttachment,
@@ -1113,13 +1208,16 @@ export default function App() {
     onRevokeInvite: adminActions.revokeInvite,
     onExportBackup: backupActions.exportBackup,
     onImportBackup: backupActions.importBackup,
+    onImportBackupAllowingChecksumMismatch: backupActions.importBackupAllowingChecksumMismatch,
     onLoadBackupSettings: backupActions.loadSettings,
     onSaveBackupSettings: backupActions.saveSettings,
     onRunRemoteBackup: backupActions.runRemoteBackup,
     onListRemoteBackups: backupActions.listRemoteBackups,
     onDownloadRemoteBackup: backupActions.downloadRemoteBackup,
+    onInspectRemoteBackup: backupActions.inspectRemoteBackup,
     onDeleteRemoteBackup: backupActions.deleteRemoteBackup,
     onRestoreRemoteBackup: backupActions.restoreRemoteBackup,
+    onRestoreRemoteBackupAllowingChecksumMismatch: backupActions.restoreRemoteBackupAllowingChecksumMismatch,
   };
 
   if (jwtWarning) {
@@ -1158,7 +1256,8 @@ export default function App() {
         <AuthViews
           mode={phase}
           pendingAction={pendingAuthAction}
-          unlockReady={!!profile}
+          unlockReady={!!profile?.key && !!session}
+          unlockPreparing={unlockPreparing}
           loginValues={loginValues}
           registerValues={registerValues}
           unlockPassword={unlockPassword}
@@ -1197,21 +1296,25 @@ export default function App() {
           onRememberDeviceChange={setRememberDevice}
           onConfirmTotp={() => void handleTotpVerify()}
           onCancelTotp={() => {
+            if (totpSubmitting) return;
             setPendingTotp(null);
             setTotpCode('');
             setRememberDevice(true);
           }}
           onUseRecoveryCode={() => {
+            if (totpSubmitting) return;
             setPendingTotp(null);
             setTotpCode('');
             setRememberDevice(true);
             navigate('/recover-2fa');
           }}
+          totpSubmitting={totpSubmitting}
           disableTotpOpen={false}
           disableTotpPassword=""
           onDisableTotpPasswordChange={() => {}}
           onConfirmDisableTotp={() => {}}
           onCancelDisableTotp={() => {}}
+          disableTotpSubmitting={false}
         />
       </>
     );
@@ -1250,14 +1353,27 @@ export default function App() {
         onConfirmTotp={() => {}}
         onCancelTotp={() => {}}
         onUseRecoveryCode={() => {}}
+        totpSubmitting={false}
         disableTotpOpen={disableTotpOpen}
         disableTotpPassword={disableTotpPassword}
         onDisableTotpPasswordChange={setDisableTotpPassword}
-        onConfirmDisableTotp={() => void accountSecurityActions.disableTotp()}
+        onConfirmDisableTotp={() => {
+          if (disableTotpSubmitting) return;
+          void (async () => {
+            setDisableTotpSubmitting(true);
+            try {
+              await accountSecurityActions.disableTotp();
+            } finally {
+              setDisableTotpSubmitting(false);
+            }
+          })();
+        }}
         onCancelDisableTotp={() => {
+          if (disableTotpSubmitting) return;
           setDisableTotpOpen(false);
           setDisableTotpPassword('');
         }}
+        disableTotpSubmitting={disableTotpSubmitting}
       />
     </>
   );

webapp/src/components/AdminPage.tsx

@@ -40,6 +40,12 @@ export default function AdminPage(props: AdminPageProps) {
     return status || '-';
   };
 
+  const normalizeToggleableStatus = (status: string): 'active' | 'banned' | null => {
+    const normalized = String(status || '').toLowerCase();
+    if (normalized === 'active' || normalized === 'banned') return normalized;
+    return null;
+  };
+
   return (
     <div className="stack">
       <section className="card">
@@ -55,7 +61,9 @@ export default function AdminPage(props: AdminPageProps) {
             </tr>
           </thead>
           <tbody>
-            {props.users.map((user) => (
+            {props.users.map((user) => {
+              const toggleableStatus = normalizeToggleableStatus(user.status);
+              return (
                 <tr key={user.id}>
                 <td data-label={t('txt_email')}>{user.email}</td>
                 <td data-label={t('txt_name')}>{user.name || t('txt_dash')}</td>
@@ -66,8 +74,11 @@ export default function AdminPage(props: AdminPageProps) {
                     <button
                       type="button"
                       className="btn btn-secondary"
-                      disabled={user.id === props.currentUserId}
+                      disabled={user.id === props.currentUserId || !toggleableStatus}
-                      onClick={() => void props.onToggleUserStatus(user.id, user.status)}
+                      onClick={() => {
+                        if (!toggleableStatus) return;
+                        void props.onToggleUserStatus(user.id, toggleableStatus);
+                      }}
                     >
                       {user.status === 'active' ? <UserX size={14} className="btn-icon" /> : <UserCheck size={14} className="btn-icon" />}
                       {user.status === 'active' ? t('txt_ban') : t('txt_unban')}
@@ -81,7 +92,8 @@ export default function AdminPage(props: AdminPageProps) {
                   </div>
                 </td>
                 </tr>
-            ))}
+              );
+            })}
           </tbody>
         </table>
       </section>

webapp/src/components/AppGlobalOverlays.tsx

@@ -27,11 +27,13 @@ interface AppGlobalOverlaysProps {
   onConfirmTotp: () => void;
   onCancelTotp: () => void;
   onUseRecoveryCode: () => void;
+  totpSubmitting: boolean;
   disableTotpOpen: boolean;
   disableTotpPassword: string;
   onDisableTotpPasswordChange: (value: string) => void;
   onConfirmDisableTotp: () => void;
   onCancelDisableTotp: () => void;
+  disableTotpSubmitting: boolean;
 }
 
 export default function AppGlobalOverlays(props: AppGlobalOverlaysProps) {
@@ -57,12 +59,14 @@ export default function AppGlobalOverlays(props: AppGlobalOverlaysProps) {
         confirmText={t('txt_verify')}
         cancelText={t('txt_cancel')}
         showIcon={false}
+        confirmDisabled={props.totpSubmitting}
+        cancelDisabled={props.totpSubmitting}
         onConfirm={props.onConfirmTotp}
         onCancel={props.onCancelTotp}
         afterActions={(
           <div className="dialog-extra">
             <div className="dialog-divider" />
-            <button type="button" className="btn btn-secondary dialog-btn" onClick={props.onUseRecoveryCode}>
+            <button type="button" className="btn btn-secondary dialog-btn" disabled={props.totpSubmitting} onClick={props.onUseRecoveryCode}>
               {t('txt_use_recovery_code')}
             </button>
           </div>
@@ -86,6 +90,8 @@ export default function AppGlobalOverlays(props: AppGlobalOverlaysProps) {
         cancelText={t('txt_cancel')}
         danger
         showIcon={false}
+        confirmDisabled={props.disableTotpSubmitting}
+        cancelDisabled={props.disableTotpSubmitting}
         onConfirm={props.onConfirmDisableTotp}
         onCancel={props.onCancelDisableTotp}
       >

webapp/src/components/AppMainRoutes.tsx

@@ -74,6 +74,7 @@ export interface AppMainRoutesProps {
   onBulkMoveVaultItems: (ids: string[], folderId: string | null) => Promise<void>;
   onVerifyMasterPassword: (email: string, password: string) => Promise<void>;
   onCreateFolder: (name: string) => Promise<void>;
+  onRenameFolder: (folderId: string, name: string) => Promise<void>;
   onDeleteFolder: (folderId: string) => Promise<void>;
   onBulkDeleteFolders: (folderIds: string[]) => Promise<void>;
   onDownloadVaultAttachment: (cipher: Cipher, attachmentId: string) => Promise<void>;
@@ -106,13 +107,16 @@ export interface AppMainRoutesProps {
   onRevokeInvite: (code: string) => Promise<void>;
   onExportBackup: (includeAttachments?: boolean) => Promise<void>;
   onImportBackup: (file: File, replaceExisting?: boolean) => Promise<AdminBackupImportResponse>;
+  onImportBackupAllowingChecksumMismatch: (file: File, replaceExisting?: boolean) => Promise<AdminBackupImportResponse>;
   onLoadBackupSettings: () => Promise<AdminBackupSettings>;
   onSaveBackupSettings: (settings: AdminBackupSettings) => Promise<AdminBackupSettings>;
   onRunRemoteBackup: (destinationId?: string | null) => Promise<AdminBackupRunResponse>;
   onListRemoteBackups: (destinationId: string, path: string) => Promise<RemoteBackupBrowserResponse>;
   onDownloadRemoteBackup: (destinationId: string, path: string, onProgress?: (percent: number | null) => void) => Promise<void>;
+  onInspectRemoteBackup: (destinationId: string, path: string) => Promise<{ object: 'backup-remote-integrity'; destinationId: string; path: string; fileName: string; integrity: { hasChecksumPrefix: boolean; expectedPrefix: string | null; actualPrefix: string; matches: boolean } }>;
   onDeleteRemoteBackup: (destinationId: string, path: string) => Promise<void>;
   onRestoreRemoteBackup: (destinationId: string, path: string, replaceExisting?: boolean) => Promise<AdminBackupImportResponse>;
+  onRestoreRemoteBackupAllowingChecksumMismatch: (destinationId: string, path: string, replaceExisting?: boolean) => Promise<AdminBackupImportResponse>;
 }
 
 export default function AppMainRoutes(props: AppMainRoutesProps) {
@@ -189,6 +193,7 @@ export default function AppMainRoutes(props: AppMainRoutesProps) {
             onVerifyMasterPassword={props.onVerifyMasterPassword}
             onNotify={props.onNotify}
             onCreateFolder={props.onCreateFolder}
+            onRenameFolder={props.onRenameFolder}
             onDeleteFolder={props.onDeleteFolder}
             onBulkDeleteFolders={props.onBulkDeleteFolders}
             onDownloadAttachment={props.onDownloadVaultAttachment}
@@ -333,11 +338,14 @@ export default function AppMainRoutes(props: AppMainRoutesProps) {
                 currentUserId={props.profile?.id || null}
                 onExport={props.onExportBackup}
                 onImport={props.onImportBackup}
+                onImportAllowingChecksumMismatch={props.onImportBackupAllowingChecksumMismatch}
                 onLoadSettings={props.onLoadBackupSettings}
                 onListRemoteBackups={props.onListRemoteBackups}
                 onDownloadRemoteBackup={props.onDownloadRemoteBackup}
+                onInspectRemoteBackup={props.onInspectRemoteBackup}
                 onDeleteRemoteBackup={props.onDeleteRemoteBackup}
                 onRestoreRemoteBackup={props.onRestoreRemoteBackup}
+                onRestoreRemoteBackupAllowingChecksumMismatch={props.onRestoreRemoteBackupAllowingChecksumMismatch}
                 onSaveSettings={props.onSaveBackupSettings}
                 onRunRemoteBackup={props.onRunRemoteBackup}
                 onNotify={props.onNotify}

webapp/src/components/AuthViews.tsx

@@ -21,6 +21,7 @@ interface AuthViewsProps {
   mode: 'login' | 'register' | 'locked';
   pendingAction: 'login' | 'register' | 'unlock' | null;
   unlockReady: boolean;
+  unlockPreparing: boolean;
   loginValues: LoginValues;
   registerValues: RegisterValues;
   unlockPassword: string;
@@ -97,14 +98,17 @@ export default function AuthViews(props: AuthViewsProps) {
                 type="button"
                 className="auth-link-btn"
                 onClick={props.onShowLockedPasswordHint}
-                disabled={unlockBusy}
+                disabled={unlockBusy || props.unlockPreparing}
               >
                 {t('txt_show_password_hint')}
               </button>
             </div>
-            <button type="submit" className="btn btn-primary full" disabled={unlockBusy || !props.unlockReady}>
+            {props.unlockPreparing ? (
+              <p className="muted standalone-muted">{t('txt_loading')}</p>
+            ) : null}
+            <button type="submit" className="btn btn-primary full" disabled={unlockBusy || props.unlockPreparing || !props.unlockReady}>
               <Unlock size={16} className="btn-icon" />
-              {unlockBusy ? t('txt_unlocking') : t('txt_unlock')}
+              {unlockBusy ? t('txt_unlocking') : props.unlockPreparing ? t('txt_loading') : t('txt_unlock')}
             </button>
             <div className="or">{t('txt_or')}</div>
             <button type="button" className="btn btn-secondary full" onClick={props.onLogout} disabled={unlockBusy}>

webapp/src/components/BackupCenterPage.tsx

@@ -1,12 +1,15 @@
+import { createPortal } from 'preact/compat';
 import { useEffect, useRef, useState } from 'preact/hooks';
 import ConfirmDialog from '@/components/ConfirmDialog';
 import {
   type AdminBackupImportResponse,
   type AdminBackupRunResponse,
   type AdminBackupSettings,
+  type BackupFileIntegrityCheckResult,
   type BackupDestinationRecord,
   type BackupDestinationType,
   type RemoteBackupBrowserResponse,
+  verifyBackupFileIntegrity,
 } from '@/lib/api/backup';
 import {
   REMOTE_BROWSER_ITEMS_PER_PAGE,
@@ -22,6 +25,7 @@ import {
   loadPersistedRemoteBrowserState,
   persistRemoteBrowserState,
 } from '@/lib/backup-center';
+import { BACKUP_PROGRESS_EVENT, type BackupProgressDetail, type BackupProgressOperation } from '@/lib/backup-restore-progress';
 import { RECOMMENDED_PROVIDERS, type RecommendedProvider } from '@/lib/backup-recommendations';
 import { t } from '@/lib/i18n';
 import { BackupDestinationDetail } from './backup-center/BackupDestinationDetail';
@@ -32,16 +36,82 @@ interface BackupCenterPageProps {
   currentUserId: string | null;
   onExport: (includeAttachments?: boolean) => Promise<void>;
   onImport: (file: File, replaceExisting?: boolean) => Promise<AdminBackupImportResponse>;
+  onImportAllowingChecksumMismatch: (file: File, replaceExisting?: boolean) => Promise<AdminBackupImportResponse>;
   onLoadSettings: () => Promise<AdminBackupSettings>;
   onSaveSettings: (settings: AdminBackupSettings) => Promise<AdminBackupSettings>;
   onRunRemoteBackup: (destinationId?: string | null) => Promise<AdminBackupRunResponse>;
   onListRemoteBackups: (destinationId: string, path: string) => Promise<RemoteBackupBrowserResponse>;
   onDownloadRemoteBackup: (destinationId: string, path: string, onProgress?: (percent: number | null) => void) => Promise<void>;
+  onInspectRemoteBackup: (destinationId: string, path: string) => Promise<{ object: 'backup-remote-integrity'; destinationId: string; path: string; fileName: string; integrity: BackupFileIntegrityCheckResult }>;
   onDeleteRemoteBackup: (destinationId: string, path: string) => Promise<void>;
   onRestoreRemoteBackup: (destinationId: string, path: string, replaceExisting?: boolean) => Promise<AdminBackupImportResponse>;
+  onRestoreRemoteBackupAllowingChecksumMismatch: (destinationId: string, path: string, replaceExisting?: boolean) => Promise<AdminBackupImportResponse>;
   onNotify: (type: 'success' | 'error' | 'warning', text: string) => void;
 }
 
+type PendingRestoreIntegrity =
+  | { source: 'local'; fileName: string; result: BackupFileIntegrityCheckResult }
+  | { source: 'remote'; fileName: string; path: string; result: BackupFileIntegrityCheckResult };
+
+interface BackupProgressPhase {
+  titleKey: string;
+  detailKey: string;
+}
+
+interface BackupProgressState {
+  operation: BackupProgressOperation;
+  source: 'local' | 'remote' | null;
+  includeAttachments: boolean;
+  fileLabel: string;
+  startedAt: number;
+  phaseIndex: number;
+  phases: BackupProgressPhase[];
+  currentTitleKey: string;
+  currentDetailKey: string;
+}
+
+const LOCAL_RESTORE_PHASES: BackupProgressPhase[] = [
+  { titleKey: 'txt_backup_restore_progress_local_upload_title', detailKey: 'txt_backup_restore_progress_local_upload_detail' },
+  { titleKey: 'txt_backup_restore_progress_local_shadow_title', detailKey: 'txt_backup_restore_progress_local_shadow_detail' },
+  { titleKey: 'txt_backup_restore_progress_local_data_title', detailKey: 'txt_backup_restore_progress_local_data_detail' },
+  { titleKey: 'txt_backup_restore_progress_local_files_title', detailKey: 'txt_backup_restore_progress_local_files_detail' },
+  { titleKey: 'txt_backup_restore_progress_local_finalize_title', detailKey: 'txt_backup_restore_progress_local_finalize_detail' },
+];
+
+const REMOTE_RESTORE_PHASES: BackupProgressPhase[] = [
+  { titleKey: 'txt_backup_restore_progress_remote_fetch_title', detailKey: 'txt_backup_restore_progress_remote_fetch_detail' },
+  { titleKey: 'txt_backup_restore_progress_remote_shadow_title', detailKey: 'txt_backup_restore_progress_remote_shadow_detail' },
+  { titleKey: 'txt_backup_restore_progress_remote_data_title', detailKey: 'txt_backup_restore_progress_remote_data_detail' },
+  { titleKey: 'txt_backup_restore_progress_remote_files_title', detailKey: 'txt_backup_restore_progress_remote_files_detail' },
+  { titleKey: 'txt_backup_restore_progress_remote_finalize_title', detailKey: 'txt_backup_restore_progress_remote_finalize_detail' },
+];
+
+const EXPORT_PROGRESS_PHASES: BackupProgressPhase[] = [
+  { titleKey: 'txt_backup_archive_progress_collect_title', detailKey: 'txt_backup_archive_progress_collect_detail' },
+  { titleKey: 'txt_backup_archive_progress_package_title', detailKey: 'txt_backup_archive_progress_package_detail' },
+  { titleKey: 'txt_backup_archive_progress_ready_title', detailKey: 'txt_backup_archive_progress_ready_detail' },
+  { titleKey: 'txt_backup_export_progress_save_title', detailKey: 'txt_backup_export_progress_save_detail' },
+];
+
+const EXPORT_WITH_ATTACHMENTS_PROGRESS_PHASES: BackupProgressPhase[] = [
+  { titleKey: 'txt_backup_archive_progress_collect_title', detailKey: 'txt_backup_archive_progress_collect_with_attachments_detail' },
+  { titleKey: 'txt_backup_archive_progress_package_title', detailKey: 'txt_backup_archive_progress_package_with_attachments_detail' },
+  { titleKey: 'txt_backup_archive_progress_ready_title', detailKey: 'txt_backup_archive_progress_ready_detail' },
+  { titleKey: 'txt_backup_export_progress_fetch_attachments_title', detailKey: 'txt_backup_export_progress_fetch_attachments_detail' },
+  { titleKey: 'txt_backup_export_progress_rebuild_title', detailKey: 'txt_backup_export_progress_rebuild_detail' },
+  { titleKey: 'txt_backup_export_progress_save_title', detailKey: 'txt_backup_export_progress_save_detail' },
+];
+
+const REMOTE_RUN_PROGRESS_PHASES: BackupProgressPhase[] = [
+  { titleKey: 'txt_backup_remote_run_progress_prepare_title', detailKey: 'txt_backup_remote_run_progress_prepare_detail' },
+  { titleKey: 'txt_backup_archive_progress_collect_title', detailKey: 'txt_backup_archive_progress_collect_with_attachments_detail' },
+  { titleKey: 'txt_backup_archive_progress_package_title', detailKey: 'txt_backup_archive_progress_package_with_attachments_detail' },
+  { titleKey: 'txt_backup_remote_run_progress_sync_attachments_title', detailKey: 'txt_backup_remote_run_progress_sync_attachments_detail' },
+  { titleKey: 'txt_backup_remote_run_progress_upload_title', detailKey: 'txt_backup_remote_run_progress_upload_detail' },
+  { titleKey: 'txt_backup_remote_run_progress_verify_title', detailKey: 'txt_backup_remote_run_progress_verify_detail' },
+  { titleKey: 'txt_backup_remote_run_progress_cleanup_title', detailKey: 'txt_backup_remote_run_progress_cleanup_detail' },
+];
+
 function buildSkippedImportMessage(result: AdminBackupImportResponse): string | null {
   const skipped = result.skipped;
   if (!skipped || !skipped.attachments) return null;
@@ -51,10 +121,56 @@ function buildSkippedImportMessage(result: AdminBackupImportResponse): string |
   });
 }
 
+function buildIntegrityStatusMessage(result: BackupFileIntegrityCheckResult, options?: { remote?: boolean }): string {
+  if (!result.hasChecksumPrefix) {
+    return t(options?.remote ? 'txt_backup_remote_restore_completed_without_checksum' : 'txt_backup_restore_completed_without_checksum');
+  }
+  return t(options?.remote ? 'txt_backup_remote_restore_completed_verified' : 'txt_backup_restore_completed_verified');
+}
+
+function buildIntegrityWarningMessage(entry: PendingRestoreIntegrity): string {
+  if (entry.source === 'remote') {
+    return t('txt_backup_remote_restore_checksum_warning_message', {
+      name: entry.fileName,
+      expected: entry.result.expectedPrefix || '-----',
+      actual: entry.result.actualPrefix,
+    });
+  }
+  return t('txt_backup_restore_checksum_warning_message', {
+    name: entry.fileName,
+    expected: entry.result.expectedPrefix || '-----',
+    actual: entry.result.actualPrefix,
+  });
+}
+
+function getBackupProgressPhases(
+  operation: BackupProgressOperation,
+  source: 'local' | 'remote' | null,
+  includeAttachments: boolean
+): BackupProgressPhase[] {
+  if (operation === 'backup-restore') {
+    return source === 'remote' ? REMOTE_RESTORE_PHASES : LOCAL_RESTORE_PHASES;
+  }
+  if (operation === 'backup-export') {
+    return includeAttachments ? EXPORT_WITH_ATTACHMENTS_PROGRESS_PHASES : EXPORT_PROGRESS_PHASES;
+  }
+  return REMOTE_RUN_PROGRESS_PHASES;
+}
+
+function getBackupProgressTitleKey(state: BackupProgressState): string {
+  if (state.operation === 'backup-export') return 'txt_backup_export_progress_title';
+  if (state.operation === 'backup-remote-run') return 'txt_backup_remote_run_progress_title';
+  return state.source === 'remote'
+    ? 'txt_backup_restore_progress_remote_title'
+    : 'txt_backup_restore_progress_local_title';
+}
+
 export default function BackupCenterPage(props: BackupCenterPageProps) {
   const persistedRemoteStateRef = useRef(loadPersistedRemoteBrowserState(props.currentUserId));
   const persistedRemoteState = persistedRemoteStateRef.current;
   const fileInputRef = useRef<HTMLInputElement | null>(null);
+  const restoreProgressTimerRef = useRef<number | null>(null);
+  const restoreProgressPendingRef = useRef<BackupProgressState | null>(null);
 
   const [selectedFile, setSelectedFile] = useState<File | null>(null);
   const [exporting, setExporting] = useState(false);
@@ -67,14 +183,17 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
   const [downloadingRemotePath, setDownloadingRemotePath] = useState('');
   const [downloadingRemotePercent, setDownloadingRemotePercent] = useState<number | null>(null);
   const [restoringRemotePath, setRestoringRemotePath] = useState('');
-  const [remoteRestoreStatusText, setRemoteRestoreStatusText] = useState('');
   const [deletingRemotePath, setDeletingRemotePath] = useState('');
   const [localError, setLocalError] = useState('');
+  const [restoreProgress, setRestoreProgress] = useState<BackupProgressState | null>(null);
+  const [restoreElapsedSeconds, setRestoreElapsedSeconds] = useState(0);
   const [confirmLocalRestoreOpen, setConfirmLocalRestoreOpen] = useState(false);
   const [confirmReplaceOpen, setConfirmReplaceOpen] = useState(false);
   const [confirmRemoteReplaceOpen, setConfirmRemoteReplaceOpen] = useState(false);
+  const [confirmIntegrityWarningOpen, setConfirmIntegrityWarningOpen] = useState(false);
   const [confirmDeleteDestinationOpen, setConfirmDeleteDestinationOpen] = useState(false);
   const [confirmRemoteDeleteOpen, setConfirmRemoteDeleteOpen] = useState(false);
+  const [pendingRestoreIntegrity, setPendingRestoreIntegrity] = useState<PendingRestoreIntegrity | null>(null);
   const [pendingRemoteRestorePath, setPendingRemoteRestorePath] = useState('');
   const [pendingRemoteDeletePath, setPendingRemoteDeletePath] = useState('');
   const [savedSettings, setSavedSettings] = useState<AdminBackupSettings | null>(null);
@@ -148,6 +267,59 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
     });
   }, [props.currentUserId, remoteBrowserCache, remoteBrowserPageByKey, remoteBrowserPathByDestination, selectedDestinationId]);
 
+  useEffect(() => {
+    if (!restoreProgress) {
+      setRestoreElapsedSeconds(0);
+      return;
+    }
+    setRestoreElapsedSeconds(Math.max(0, Math.floor((Date.now() - restoreProgress.startedAt) / 1000)));
+    const tickTimer = window.setInterval(() => {
+      setRestoreElapsedSeconds(Math.max(0, Math.floor((Date.now() - restoreProgress.startedAt) / 1000)));
+    }, 1000);
+    return () => window.clearInterval(tickTimer);
+  }, [restoreProgress]);
+
+  useEffect(() => {
+    const handleProgress = (event: Event) => {
+      const detail = (event as CustomEvent<BackupProgressDetail>).detail;
+      if (!detail) return;
+      const pending = restoreProgressPendingRef.current;
+      const operation = detail.operation || pending?.operation || 'backup-restore';
+      const source = (detail.source || pending?.source || null) as 'local' | 'remote' | null;
+      const includeAttachments = pending?.includeAttachments || false;
+      const phases = getBackupProgressPhases(operation, source, includeAttachments);
+      const matchedPhaseIndex = phases.findIndex((phase) => phase.titleKey === detail.stageTitle);
+      const phaseIndex = matchedPhaseIndex >= 0 ? matchedPhaseIndex : 0;
+      const nextState: BackupProgressState = {
+        operation,
+        source,
+        includeAttachments,
+        fileLabel: detail.fileName || pending?.fileLabel || '',
+        startedAt: pending?.operation === operation
+          ? pending.startedAt
+          : Date.now(),
+        phaseIndex,
+        phases,
+        currentTitleKey: detail.stageTitle || phases[Math.max(0, phaseIndex)].titleKey,
+        currentDetailKey: detail.stageDetail || phases[Math.max(0, phaseIndex)].detailKey,
+      };
+      restoreProgressPendingRef.current = nextState;
+      if (restoreProgressTimerRef.current === null) {
+        setRestoreProgress(nextState);
+      }
+      if (detail.done) {
+        window.setTimeout(() => {
+          setRestoreProgress((current) => (
+            current && current.fileLabel === (detail.fileName || current.fileLabel) ? null : current
+          ));
+          setRestoreElapsedSeconds(0);
+        }, detail.ok === false ? 1200 : 900);
+      }
+    };
+    window.addEventListener(BACKUP_PROGRESS_EVENT, handleProgress as EventListener);
+    return () => window.removeEventListener(BACKUP_PROGRESS_EVENT, handleProgress as EventListener);
+  }, []);
+
   function updateSettings(mutator: (current: AdminBackupSettings) => AdminBackupSettings) {
     setSettings((current) => {
       const next = mutator(current);
@@ -225,6 +397,67 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
     if (fileInputRef.current) fileInputRef.current.value = '';
   }
 
+  function resetPendingIntegrityWarning() {
+    setPendingRestoreIntegrity(null);
+    setConfirmIntegrityWarningOpen(false);
+  }
+
+  function startRestoreProgress(
+    operation: BackupProgressOperation,
+    fileLabel: string,
+    options?: { source?: 'local' | 'remote' | null; includeAttachments?: boolean; delayMs?: number }
+  ) {
+    if (restoreProgressTimerRef.current !== null) {
+      window.clearTimeout(restoreProgressTimerRef.current);
+      restoreProgressTimerRef.current = null;
+    }
+    setRestoreElapsedSeconds(0);
+    const source = options?.source || null;
+    const includeAttachments = !!options?.includeAttachments;
+    const phases = getBackupProgressPhases(operation, source, includeAttachments);
+    restoreProgressPendingRef.current = {
+      operation,
+      source,
+      includeAttachments,
+      fileLabel,
+      startedAt: Date.now(),
+      phaseIndex: 0,
+      phases,
+      currentTitleKey: phases[0].titleKey,
+      currentDetailKey: phases[0].detailKey,
+    };
+    restoreProgressTimerRef.current = window.setTimeout(() => {
+      restoreProgressTimerRef.current = null;
+      if (!restoreProgressPendingRef.current) return;
+      setRestoreProgress(restoreProgressPendingRef.current);
+    }, options?.delayMs ?? 480);
+  }
+
+  function clearRestoreProgress() {
+    if (restoreProgressTimerRef.current !== null) {
+      window.clearTimeout(restoreProgressTimerRef.current);
+      restoreProgressTimerRef.current = null;
+    }
+    restoreProgressPendingRef.current = null;
+    setRestoreProgress(null);
+    setRestoreElapsedSeconds(0);
+  }
+
+  async function inspectLocalBackupFile(file: File): Promise<BackupFileIntegrityCheckResult> {
+    const bytes = new Uint8Array(await file.arrayBuffer());
+    return verifyBackupFileIntegrity(bytes, file.name || '');
+  }
+
+  async function inspectRemoteBackupFile(destinationId: string, path: string): Promise<PendingRestoreIntegrity> {
+    const payload = await props.onInspectRemoteBackup(destinationId, path);
+    return {
+      source: 'remote',
+      path,
+      fileName: payload.fileName || path.split('/').pop() || path,
+      result: payload.integrity,
+    };
+  }
+
   function handleAddDestination(type: BackupDestinationType) {
     updateSettings((current) => {
       const nextDestination = createDraftDestinationRecord(type, current.destinations.filter((destination) => destination.type === type).length + 1);
@@ -277,18 +510,25 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
     setLocalError('');
     setExporting(true);
     try {
+      startRestoreProgress('backup-export', t('txt_backup_export'), { source: 'local', includeAttachments: exportIncludeAttachments });
       await props.onExport(exportIncludeAttachments);
       props.onNotify('success', t('txt_backup_export_success'));
     } catch (error) {
       const message = error instanceof Error ? error.message : t('txt_backup_export_failed');
       setLocalError(message);
       props.onNotify('error', message);
+      window.setTimeout(() => clearRestoreProgress(), 1200);
     } finally {
       setExporting(false);
     }
   }
 
-  async function runLocalRestore(replaceExisting: boolean) {
+  async function runLocalRestore(
+    replaceExisting: boolean,
+    allowChecksumMismatch: boolean = false,
+    knownIntegrity?: BackupFileIntegrityCheckResult
+  ) {
+    if (importing) return;
     if (!selectedFile) {
       const message = t('txt_backup_file_required');
       setLocalError(message);
@@ -296,17 +536,29 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
       return;
     }
     setLocalError('');
+    setConfirmLocalRestoreOpen(false);
+    setConfirmReplaceOpen(false);
+    setConfirmIntegrityWarningOpen(false);
     setImporting(true);
     try {
-      const result = await props.onImport(selectedFile, replaceExisting);
+      const integrity = knownIntegrity || await inspectLocalBackupFile(selectedFile);
-      props.onNotify('success', t('txt_backup_restore_success_relogin'));
+      startRestoreProgress('backup-restore', selectedFile.name || t('txt_backup_import'), {
+        source: 'local',
+        delayMs: replaceExisting ? 480 : 1400,
+      });
+      const result = allowChecksumMismatch
+        ? await props.onImportAllowingChecksumMismatch(selectedFile, replaceExisting)
+        : await props.onImport(selectedFile, replaceExisting);
+      props.onNotify('success', `${buildIntegrityStatusMessage(integrity)} ${t('txt_backup_restore_success_relogin')}`);
       const skippedMessage = buildSkippedImportMessage(result);
       if (skippedMessage) props.onNotify('warning', skippedMessage);
       resetSelectedFile();
       setConfirmLocalRestoreOpen(false);
       setConfirmReplaceOpen(false);
+      resetPendingIntegrityWarning();
     } catch (error) {
       if (!replaceExisting && isReplaceRequiredError(error)) {
+        clearRestoreProgress();
         setConfirmLocalRestoreOpen(false);
         setConfirmReplaceOpen(true);
         return;
@@ -314,6 +566,7 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
       const message = error instanceof Error ? error.message : t('txt_backup_restore_failed');
       setLocalError(message);
       props.onNotify('error', message);
+      window.setTimeout(() => clearRestoreProgress(), 1200);
     } finally {
       setImporting(false);
     }
@@ -364,16 +617,21 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
     setRunningRemoteBackup(true);
     setLocalError('');
     try {
+      startRestoreProgress('backup-remote-run', selectedDestination.name || t('txt_backup_run_now'), {
+        source: 'remote',
+        includeAttachments: !!selectedDestination.includeAttachments,
+      });
       const result = await props.onRunRemoteBackup(selectedDestination.id);
       setSavedSettings(result.settings);
       setSettings(result.settings);
       setSelectedDestinationId(selectedDestination.id);
       await loadRemoteBrowser(selectedDestination.id, currentRemoteBrowserPath, { force: true });
-      props.onNotify('success', t('txt_backup_remote_run_success'));
+      props.onNotify('success', t('txt_backup_remote_run_success_verified', { name: result.result.fileName }));
     } catch (error) {
       const message = error instanceof Error ? error.message : t('txt_backup_remote_run_failed');
       setLocalError(message);
       props.onNotify('error', message);
+      window.setTimeout(() => clearRestoreProgress(), 1200);
     } finally {
       setRunningRemoteBackup(false);
     }
@@ -397,6 +655,7 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
   }
 
   async function handleDeleteRemote(path: string) {
+    if (deletingRemotePath) return;
     if (!savedSelectedDestination) return;
     setDeletingRemotePath(path);
     setLocalError('');
@@ -415,30 +674,89 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
     }
   }
 
-  async function runRemoteRestore(path: string, replaceExisting: boolean) {
+  async function handleSelectedLocalFile(nextFile: File | null) {
+    setSelectedFile(nextFile);
+    setLocalError('');
+    resetPendingIntegrityWarning();
+    setConfirmLocalRestoreOpen(false);
+    if (!nextFile) return;
+
+    try {
+      const integrity = await inspectLocalBackupFile(nextFile);
+      if (!integrity.matches) {
+        setPendingRestoreIntegrity({
+          source: 'local',
+          fileName: nextFile.name,
+          result: integrity,
+        });
+        setConfirmIntegrityWarningOpen(true);
+        return;
+      }
+      setConfirmLocalRestoreOpen(true);
+    } catch (error) {
+      const message = error instanceof Error ? error.message : t('txt_backup_integrity_check_failed');
+      setLocalError(message);
+      props.onNotify('error', message);
+    }
+  }
+
+  async function handlePromptRemoteRestore(path: string) {
     if (!savedSelectedDestination) return;
+    setLocalError('');
+    resetPendingIntegrityWarning();
+    try {
+      const integrity = await inspectRemoteBackupFile(savedSelectedDestination.id, path);
+      if (!integrity.result.matches) {
+        setPendingRestoreIntegrity(integrity);
+        setConfirmIntegrityWarningOpen(true);
+        return;
+      }
+      await runRemoteRestore(path, false, false, integrity.result);
+    } catch (error) {
+      const message = error instanceof Error ? error.message : t('txt_backup_integrity_check_failed');
+      setLocalError(message);
+      props.onNotify('error', message);
+    }
+  }
+
+  async function runRemoteRestore(
+    path: string,
+    replaceExisting: boolean,
+    allowChecksumMismatch: boolean = false,
+    knownIntegrity?: BackupFileIntegrityCheckResult
+  ) {
+    if (restoringRemotePath) return;
+    if (!savedSelectedDestination) return;
+    setConfirmRemoteReplaceOpen(false);
+    setConfirmIntegrityWarningOpen(false);
     setRestoringRemotePath(path);
-    setRemoteRestoreStatusText(replaceExisting ? t('txt_backup_remote_restore_stage_replace') : t('txt_backup_remote_restore_stage_prepare'));
     setLocalError('');
     try {
-      const result = await props.onRestoreRemoteBackup(savedSelectedDestination.id, path, replaceExisting);
+      const integrity = knownIntegrity ? { result: knownIntegrity } : await inspectRemoteBackupFile(savedSelectedDestination.id, path);
+      startRestoreProgress('backup-restore', path.split('/').pop() || path, {
+        source: 'remote',
+        delayMs: replaceExisting ? 480 : 1400,
+      });
+      const result = allowChecksumMismatch
+        ? await props.onRestoreRemoteBackupAllowingChecksumMismatch(savedSelectedDestination.id, path, replaceExisting)
+        : await props.onRestoreRemoteBackup(savedSelectedDestination.id, path, replaceExisting);
       setConfirmRemoteReplaceOpen(false);
       setPendingRemoteRestorePath('');
-      setRemoteRestoreStatusText('');
+      props.onNotify('success', `${buildIntegrityStatusMessage(integrity.result, { remote: true })} ${t('txt_backup_restore_success_relogin')}`);
-      props.onNotify('success', t('txt_backup_restore_success_relogin'));
       const skippedMessage = buildSkippedImportMessage(result);
       if (skippedMessage) props.onNotify('warning', skippedMessage);
+      resetPendingIntegrityWarning();
     } catch (error) {
       if (!replaceExisting && isReplaceRequiredError(error)) {
         setPendingRemoteRestorePath(path);
         setConfirmRemoteReplaceOpen(true);
-        setRemoteRestoreStatusText('');
+        clearRestoreProgress();
         return;
       }
       const message = error instanceof Error ? error.message : t('txt_backup_remote_restore_failed');
-      setRemoteRestoreStatusText('');
       setLocalError(message);
       props.onNotify('error', message);
+      window.setTimeout(() => clearRestoreProgress(), 1200);
     } finally {
       setRestoringRemotePath('');
     }
@@ -454,9 +772,7 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
         disabled={disableWhileBusy}
         onChange={(event) => {
           const nextFile = (event.currentTarget as HTMLInputElement).files?.[0] || null;
-          setSelectedFile(nextFile);
+          void handleSelectedLocalFile(nextFile);
-          setLocalError('');
-          if (nextFile) setConfirmLocalRestoreOpen(true);
         }}
       />
 
@@ -521,7 +837,7 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
           if (savedSelectedDestination) showRemoteBrowserPath(savedSelectedDestination.id, path);
         }}
         onDownloadRemoteBackup={(path) => void handleDownloadRemote(path)}
-        onRestoreRemoteBackup={(path) => void runRemoteRestore(path, false)}
+        onRestoreRemoteBackup={(path) => void handlePromptRemoteRestore(path)}
         onPromptDeleteRemoteBackup={(path) => {
           setPendingRemoteDeletePath(path);
           setConfirmRemoteDeleteOpen(true);
@@ -533,7 +849,49 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
       />
 
       {localError ? <div className="local-error">{localError}</div> : null}
-      {!localError && remoteRestoreStatusText ? <div className="status-ok">{remoteRestoreStatusText}</div> : null}
+      {restoreProgress && typeof document !== 'undefined' ? createPortal((
+        <div className="restore-progress-overlay" aria-live="polite">
+          <section className="restore-progress-card restore-progress-modal">
+          <div className="restore-progress-head">
+            <div>
+              <div className="restore-progress-kicker">{t('txt_backup_progress_kicker')}</div>
+              <h3 className="restore-progress-title">
+                {t(getBackupProgressTitleKey(restoreProgress))}
+              </h3>
+              <p className="restore-progress-subtitle">
+                {t('txt_backup_progress_subject', { name: restoreProgress.fileLabel })}
+              </p>
+            </div>
+            <div className="restore-progress-elapsed">
+              {t('txt_backup_restore_progress_elapsed', { seconds: String(restoreElapsedSeconds) })}
+            </div>
+          </div>
+          <div className="restore-progress-meter">
+            <span
+              className="restore-progress-meter-bar"
+              style={{
+                width: `${((restoreProgress.phaseIndex + 1) / restoreProgress.phases.length) * 100}%`,
+              }}
+            />
+          </div>
+          <div className="restore-progress-current">
+            <strong>{t(restoreProgress.currentTitleKey)}</strong>
+            <p>{t(restoreProgress.currentDetailKey)}</p>
+          </div>
+          <ol className="restore-progress-list">
+            {restoreProgress.phases.map((phase, index) => {
+              const status = index < restoreProgress.phaseIndex ? 'done' : index === restoreProgress.phaseIndex ? 'active' : 'pending';
+              return (
+                <li key={phase.titleKey} className={`restore-progress-item ${status}`}>
+                  <span className="restore-progress-dot" />
+                  <span className="restore-progress-item-text">{t(phase.titleKey)}</span>
+                </li>
+              );
+            })}
+          </ol>
+          </section>
+        </div>
+      ), document.body) : null}
 
       <ConfirmDialog
         open={confirmLocalRestoreOpen}
@@ -541,11 +899,15 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
         message={selectedFile ? t('txt_backup_selected_file_name', { name: selectedFile.name }) : t('txt_backup_restore_note')}
         confirmText={t('txt_backup_import')}
         cancelText={t('txt_cancel')}
+        confirmDisabled={importing}
+        cancelDisabled={importing}
         danger
         onConfirm={() => void runLocalRestore(false)}
         onCancel={() => {
+          if (importing) return;
           setConfirmLocalRestoreOpen(false);
           resetSelectedFile();
+          resetPendingIntegrityWarning();
         }}
       />
 
@@ -558,11 +920,16 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
         confirmDisabled={importing}
         cancelDisabled={importing}
         danger
-        onConfirm={() => void runLocalRestore(true)}
+        onConfirm={() => void runLocalRestore(
+          true,
+          pendingRestoreIntegrity?.source === 'local',
+          pendingRestoreIntegrity?.source === 'local' ? pendingRestoreIntegrity.result : undefined
+        )}
         onCancel={() => {
           if (importing) return;
           setConfirmReplaceOpen(false);
           resetSelectedFile();
+          resetPendingIntegrityWarning();
         }}
       />
 
@@ -575,11 +942,47 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
         confirmDisabled={!!restoringRemotePath}
         cancelDisabled={!!restoringRemotePath}
         danger
-        onConfirm={() => void runRemoteRestore(pendingRemoteRestorePath, true)}
+        onConfirm={() => void runRemoteRestore(
+          pendingRemoteRestorePath,
+          true,
+          pendingRestoreIntegrity?.source === 'remote' && pendingRestoreIntegrity.path === pendingRemoteRestorePath,
+          pendingRestoreIntegrity?.source === 'remote' && pendingRestoreIntegrity.path === pendingRemoteRestorePath
+            ? pendingRestoreIntegrity.result
+            : undefined
+        )}
         onCancel={() => {
           if (restoringRemotePath) return;
           setConfirmRemoteReplaceOpen(false);
           setPendingRemoteRestorePath('');
+          resetPendingIntegrityWarning();
+        }}
+      />
+
+      <ConfirmDialog
+        open={confirmIntegrityWarningOpen}
+        title={t('txt_backup_restore_checksum_warning_title')}
+        message={pendingRestoreIntegrity ? buildIntegrityWarningMessage(pendingRestoreIntegrity) : t('txt_backup_restore_checksum_warning_message_fallback')}
+        variant="warning"
+        confirmText={t('txt_backup_restore_checksum_warning_confirm')}
+        cancelText={t('txt_cancel')}
+        confirmDisabled={importing || !!restoringRemotePath}
+        cancelDisabled={importing || !!restoringRemotePath}
+        danger
+        onConfirm={() => {
+          if (!pendingRestoreIntegrity) return;
+          setConfirmIntegrityWarningOpen(false);
+          if (pendingRestoreIntegrity.source === 'local') {
+            void runLocalRestore(false, true, pendingRestoreIntegrity.result);
+            return;
+          }
+          void runRemoteRestore(pendingRestoreIntegrity.path, false, true, pendingRestoreIntegrity.result);
+        }}
+        onCancel={() => {
+          if (importing || restoringRemotePath) return;
+          resetPendingIntegrityWarning();
+          setPendingRemoteRestorePath('');
+          setConfirmLocalRestoreOpen(false);
+          resetSelectedFile();
         }}
       />
 
@@ -589,6 +992,8 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
         message={t('txt_backup_remote_delete_confirm_message', { name: pendingRemoteDeletePath.split('/').pop() || pendingRemoteDeletePath })}
         confirmText={t('txt_delete')}
         cancelText={t('txt_cancel')}
+        confirmDisabled={!!deletingRemotePath}
+        cancelDisabled={!!deletingRemotePath}
         danger
         onConfirm={() => void handleDeleteRemote(pendingRemoteDeletePath)}
         onCancel={() => {
@@ -606,6 +1011,8 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
         })}
         confirmText={t('txt_delete')}
         cancelText={t('txt_cancel')}
+        confirmDisabled={savingSettings}
+        cancelDisabled={savingSettings}
         danger
         onConfirm={() => void handleDeleteDestination()}
         onCancel={() => {

webapp/src/components/ConfirmDialog.tsx

@@ -1,11 +1,14 @@
+import { createPortal } from 'preact/compat';
 import { useEffect, useState } from 'preact/hooks';
 import type { ComponentChildren } from 'preact';
+import { TriangleAlert } from 'lucide-preact';
 import { t } from '@/lib/i18n';
 
 interface ConfirmDialogProps {
   open: boolean;
   title: string;
   message: string;
+  variant?: 'default' | 'warning';
   showIcon?: boolean;
   confirmText?: string;
   cancelText?: string;
@@ -19,9 +22,49 @@ interface ConfirmDialogProps {
   afterActions?: ComponentChildren;
 }
 
+function incrementDialogBodyLock() {
+  if (typeof document === 'undefined') return;
+  const body = document.body;
+  const nextCount = Number(body.dataset.dialogCount || '0') + 1;
+  body.dataset.dialogCount = String(nextCount);
+  body.classList.add('dialog-open');
+}
+
+function decrementDialogBodyLock() {
+  if (typeof document === 'undefined') return;
+  const body = document.body;
+  const nextCount = Math.max(0, Number(body.dataset.dialogCount || '0') - 1);
+  if (nextCount === 0) {
+    delete body.dataset.dialogCount;
+    body.classList.remove('dialog-open');
+    return;
+  }
+  body.dataset.dialogCount = String(nextCount);
+}
+
+export function useDialogLifecycle(active: boolean, onCancel?: (() => void) | null) {
+  useEffect(() => {
+    if (!active) return;
+    incrementDialogBodyLock();
+    return () => decrementDialogBodyLock();
+  }, [active]);
+
+  useEffect(() => {
+    if (!active || !onCancel || typeof window === 'undefined') return;
+    const handleKeyDown = (event: KeyboardEvent) => {
+      if (event.key !== 'Escape') return;
+      event.preventDefault();
+      onCancel();
+    };
+    window.addEventListener('keydown', handleKeyDown);
+    return () => window.removeEventListener('keydown', handleKeyDown);
+  }, [active, onCancel]);
+}
+
 export default function ConfirmDialog(props: ConfirmDialogProps) {
   const [present, setPresent] = useState(props.open);
   const [closing, setClosing] = useState(false);
+  const canDismiss = !props.cancelDisabled && !closing && !props.hideCancel;
 
   useEffect(() => {
     if (props.open) {
@@ -38,19 +81,41 @@ export default function ConfirmDialog(props: ConfirmDialogProps) {
     return () => window.clearTimeout(timer);
   }, [props.open, present]);
 
-  if (!present) return null;
+  useDialogLifecycle(present, canDismiss ? props.onCancel : null);
-  return (
+
-    <div className={`dialog-mask ${props.open && !closing ? 'open' : ''} ${closing ? 'closing' : ''}`}>
+  if (!present || typeof document === 'undefined') return null;
+  return createPortal((
+    <div
+      className={`dialog-mask ${props.variant === 'warning' ? 'warning' : ''} ${props.open && !closing ? 'open' : ''} ${closing ? 'closing' : ''}`}
+      onClick={(event) => {
+        if (event.target !== event.currentTarget || !canDismiss) return;
+        props.onCancel();
+      }}
+    >
       <form
-        className={`dialog-card ${props.open && !closing ? 'open' : ''} ${closing ? 'closing' : ''}`}
+        className={`dialog-card ${props.variant === 'warning' ? 'warning' : ''} ${props.open && !closing ? 'open' : ''} ${closing ? 'closing' : ''}`}
+        role="dialog"
+        aria-modal="true"
+        aria-label={props.title}
         onSubmit={(e) => {
           e.preventDefault();
           if (props.confirmDisabled || closing) return;
           props.onConfirm();
         }}
       >
+        {props.variant === 'warning' ? (
+          <>
+            <div className="dialog-warning-strip" aria-hidden="true" />
+            <div className="dialog-warning-head">
+              <div className="dialog-warning-badge" aria-hidden="true">
+                <TriangleAlert size={24} />
+              </div>
+              <div className="dialog-warning-kicker">{t('txt_warning')}</div>
+            </div>
+          </>
+        ) : null}
         <h3 className="dialog-title">{props.title}</h3>
-        <div className="dialog-message">{props.message}</div>
+        <div className={`dialog-message ${props.variant === 'warning' ? 'warning' : ''}`}>{props.message}</div>
         {props.children}
         <button
           type="submit"
@@ -75,5 +140,5 @@ export default function ConfirmDialog(props: ConfirmDialogProps) {
         {props.afterActions}
       </form>
     </div>
-  );
+  ), document.body);
 }

webapp/src/components/ImportPage.tsx

@@ -1,9 +1,10 @@
 import { useState } from 'preact/hooks';
 import { argon2idAsync } from '@noble/hashes/argon2.js';
+import { createPortal } from 'preact/compat';
 import { strFromU8, unzipSync } from 'fflate';
 import { BlobReader, Uint8ArrayWriter, ZipReader, configure as configureZipJs } from '@zip.js/zip.js';
 import { Download, FileUp } from 'lucide-preact';
-import ConfirmDialog from '@/components/ConfirmDialog';
+import ConfirmDialog, { useDialogLifecycle } from '@/components/ConfirmDialog';
 import type { CiphersImportPayload } from '@/lib/api/vault';
 import {
   type EncryptedJsonMode,
@@ -311,6 +312,8 @@ export default function ImportPage({ onImport, onImportEncryptedRaw, accountKeys
   const [exportAuthDialogOpen, setExportAuthDialogOpen] = useState(false);
   const [exportAuthPassword, setExportAuthPassword] = useState('');
   const [importSummary, setImportSummary] = useState<ImportResultSummary | null>(null);
+
+  useDialogLifecycle(!!importSummary, importSummary ? () => setImportSummary(null) : null);
   const commonSourceSet = new Set<ImportSourceId>(COMMON_IMPORT_SOURCE_IDS);
   const commonSources = IMPORT_SOURCES.filter((item) => commonSourceSet.has(item.id as ImportSourceId));
   const otherSources = IMPORT_SOURCES.filter((item) => !commonSourceSet.has(item.id as ImportSourceId));
@@ -465,6 +468,7 @@ export default function ImportPage({ onImport, onImportEncryptedRaw, accountKeys
   }
 
   async function handlePasswordImportConfirm() {
+    if (isPasswordSubmitting) return;
     if (!pendingPasswordImport) return;
     setIsPasswordSubmitting(true);
     try {
@@ -483,6 +487,7 @@ export default function ImportPage({ onImport, onImportEncryptedRaw, accountKeys
   }
 
   async function handleZipPasswordImportConfirm() {
+    if (isZipPasswordSubmitting) return;
     if (!pendingZipFile) return;
     setIsZipPasswordSubmitting(true);
     try {
@@ -555,6 +560,7 @@ export default function ImportPage({ onImport, onImportEncryptedRaw, accountKeys
   }
 
   async function handleExportConfirmPassword() {
+    if (isExporting) return;
     const masterPassword = String(exportAuthPassword || '').trim();
     if (!masterPassword) {
       onNotify('error', t('txt_master_password_is_required'));
@@ -733,6 +739,8 @@ export default function ImportPage({ onImport, onImportEncryptedRaw, accountKeys
         confirmText={isExporting ? t('txt_loading') : t('txt_verify')}
         cancelText={t('txt_cancel')}
         showIcon={false}
+        confirmDisabled={isExporting}
+        cancelDisabled={isExporting}
         onConfirm={() => void handleExportConfirmPassword()}
         onCancel={() => {
           if (isExporting) return;
@@ -758,6 +766,8 @@ export default function ImportPage({ onImport, onImportEncryptedRaw, accountKeys
         confirmText={isPasswordSubmitting ? t('txt_loading') : t('txt_import')}
         cancelText={t('txt_cancel')}
         showIcon={false}
+        confirmDisabled={isPasswordSubmitting}
+        cancelDisabled={isPasswordSubmitting}
         onConfirm={() => void handlePasswordImportConfirm()}
         onCancel={() => {
           if (isPasswordSubmitting) return;
@@ -784,6 +794,8 @@ export default function ImportPage({ onImport, onImportEncryptedRaw, accountKeys
         confirmText={isZipPasswordSubmitting ? t('txt_loading') : t('txt_import')}
         cancelText={t('txt_cancel')}
         showIcon={false}
+        confirmDisabled={isZipPasswordSubmitting}
+        cancelDisabled={isZipPasswordSubmitting}
         onConfirm={() => void handleZipPasswordImportConfirm()}
         onCancel={() => {
           if (isZipPasswordSubmitting) return;
@@ -803,9 +815,15 @@ export default function ImportPage({ onImport, onImportEncryptedRaw, accountKeys
         </label>
       </ConfirmDialog>
 
-      {importSummary && (
+      {importSummary && typeof document !== 'undefined' ? createPortal((
-        <div className="dialog-mask">
+        <div
-          <section className="dialog-card import-summary-dialog">
+          className="dialog-mask"
+          onClick={(event) => {
+            if (event.target !== event.currentTarget) return;
+            setImportSummary(null);
+          }}
+        >
+          <section className="dialog-card import-summary-dialog" role="dialog" aria-modal="true" aria-label={t('txt_import_success')}>
             <button
               type="button"
               className="import-summary-close"
@@ -866,7 +884,7 @@ export default function ImportPage({ onImport, onImportEncryptedRaw, accountKeys
             </button>
           </section>
         </div>
-      )}
+      ), document.body) : null}
     </div>
   );
 }

webapp/src/components/PublicSendPage.tsx

@@ -1,6 +1,7 @@
 import { useEffect, useState } from 'preact/hooks';
 import { Download, Eye, Lock } from 'lucide-preact';
 import { accessPublicSend, accessPublicSendFile, decryptPublicSend, decryptPublicSendFileBytes } from '@/lib/api/send';
+import { toBufferSource } from '@/lib/crypto';
 import { downloadBytesAsFile, readResponseBytesWithProgress } from '@/lib/download';
 import StandalonePageFrame from '@/components/StandalonePageFrame';
 import { t } from '@/lib/i18n';
@@ -61,13 +62,13 @@ export default function PublicSendPage(props: PublicSendPageProps) {
       if (props.keyPart) {
         try {
           const decryptedBytes = await decryptPublicSendFileBytes(encryptedBytes, props.keyPart);
-          blob = new Blob([decryptedBytes as unknown as BlobPart], { type: 'application/octet-stream' });
+          blob = new Blob([toBufferSource(decryptedBytes)], { type: 'application/octet-stream' });
         } catch {
           // Legacy compatibility: early web-created file sends uploaded plaintext bytes.
-          blob = new Blob([encryptedBytes], { type: 'application/octet-stream' });
+          blob = new Blob([toBufferSource(encryptedBytes)], { type: 'application/octet-stream' });
         }
       } else {
-        blob = new Blob([encryptedBytes], { type: 'application/octet-stream' });
+        blob = new Blob([toBufferSource(encryptedBytes)], { type: 'application/octet-stream' });
       }
       downloadBytesAsFile(
         new Uint8Array(await blob.arrayBuffer()),

webapp/src/components/SettingsPage.tsx

@@ -4,6 +4,7 @@ import { copyTextToClipboard } from '@/lib/clipboard';
 import qrcode from 'qrcode-generator';
 import type { Profile } from '@/lib/types';
 import { t } from '@/lib/i18n';
+import ConfirmDialog from '@/components/ConfirmDialog';
 
 interface SettingsPageProps {
   profile: Profile;
@@ -64,7 +65,8 @@ export default function SettingsPage(props: SettingsPageProps) {
     const qr = qrcode(0, 'M');
     qr.addData(buildOtpUri(props.profile.email, secret));
     qr.make();
-    const svg = qr.createSvgTag({ scalable: true, margin: 0 });
+    // Keep a visible quiet zone so authenticator apps can scan reliably in both themes.
+    const svg = qr.createSvgTag({ scalable: true, margin: 4 });
     return `data:image/svg+xml;charset=utf-8,${encodeURIComponent(svg)}`;
   }, [props.profile.email, secret]);
 
@@ -85,6 +87,13 @@ export default function SettingsPage(props: SettingsPageProps) {
     props.onNotify?.('success', t('txt_recovery_code_loaded'));
   }
 
+  function formatDateTime(value: string | null | undefined): string {
+    if (!value) return t('txt_dash');
+    const parsed = new Date(value);
+    if (Number.isNaN(parsed.getTime())) return value;
+    return parsed.toLocaleString();
+  }
+
   return (
     <div className="stack">
       <section className="card">

webapp/src/components/TotpCodesPage.tsx

@@ -1,3 +1,4 @@
+import type { JSX } from 'preact';
 import { useEffect, useMemo, useRef, useState } from 'preact/hooks';
 import { Clipboard, Globe, GripVertical } from 'lucide-preact';
 import {
@@ -96,6 +97,7 @@ function SortableTotpRow(props: SortableTotpRowProps) {
   const { attributes, listeners, setActivatorNodeRef, setNodeRef, transform, transition, isDragging } = useSortable({
     id: props.cipher.id,
   });
+  const dragButtonAttributes = attributes as JSX.HTMLAttributes<HTMLButtonElement>;
 
   const style = {
     transform: CSS.Transform.toString(transform),
@@ -113,7 +115,7 @@ function SortableTotpRow(props: SortableTotpRowProps) {
         className="btn btn-secondary small totp-drag-btn"
         title={t('txt_drag_to_reorder')}
         aria-label={t('txt_drag_to_reorder')}
-        {...attributes}
+        {...dragButtonAttributes}
         {...listeners}
       >
         <GripVertical size={14} className="btn-icon" />

webapp/src/components/VaultPage.tsx

@@ -50,6 +50,7 @@ interface VaultPageProps {
   onVerifyMasterPassword: (email: string, password: string) => Promise<void>;
   onNotify: (type: 'success' | 'error' | 'warning', text: string) => void;
   onCreateFolder: (name: string) => Promise<void>;
+  onRenameFolder: (folderId: string, name: string) => Promise<void>;
   onDeleteFolder: (folderId: string) => Promise<void>;
   onBulkDeleteFolders: (folderIds: string[]) => Promise<void>;
   onDownloadAttachment: (cipher: Cipher, attachmentId: string) => Promise<void>;
@@ -91,6 +92,8 @@ export default function VaultPage(props: VaultPageProps) {
   const [moveFolderId, setMoveFolderId] = useState('__none__');
   const [createFolderOpen, setCreateFolderOpen] = useState(false);
   const [newFolderName, setNewFolderName] = useState('');
+  const [pendingRenameFolder, setPendingRenameFolder] = useState<Folder | null>(null);
+  const [renameFolderName, setRenameFolderName] = useState('');
   const [pendingDeleteFolder, setPendingDeleteFolder] = useState<Folder | null>(null);
   const [deleteAllFoldersOpen, setDeleteAllFoldersOpen] = useState(false);
   const [totpLive, setTotpLive] = useState<{ code: string; remain: number } | null>(null);
@@ -101,6 +104,7 @@ export default function VaultPage(props: VaultPageProps) {
   const [repromptOpen, setRepromptOpen] = useState(false);
   const [repromptPassword, setRepromptPassword] = useState('');
   const [repromptApprovedCipherId, setRepromptApprovedCipherId] = useState<string | null>(null);
+  const [pendingDeletePasskeyIndex, setPendingDeletePasskeyIndex] = useState<number | null>(null);
   const [isMobileLayout, setIsMobileLayout] = useState(getInitialIsMobileLayout);
   const [mobilePanel, setMobilePanel] = useState<'list' | 'detail' | 'edit'>('list');
   const [mobileSidebarOpen, setMobileSidebarOpen] = useState(false);
@@ -349,7 +353,6 @@ export default function VaultPage(props: VaultPageProps) {
     () => filteredCiphers.slice(virtualRange.start, virtualRange.end),
     [filteredCiphers, virtualRange.start, virtualRange.end]
   );
-  const passkeyCreatedAt = firstPasskeyCreationTime(selectedCipher);
   const selectedAttachments = useMemo(
     () => (Array.isArray(selectedCipher?.attachments) ? selectedCipher.attachments : []),
     [selectedCipher]
@@ -443,6 +446,7 @@ function folderName(id: string | null | undefined): string {
     setLocalError('');
     setAttachmentQueue([]);
     setRemovedAttachmentIds({});
+    setPendingDeletePasskeyIndex(null);
     if (isMobileLayout) setMobilePanel(returnToDetail ? 'detail' : 'list');
   }
 
@@ -450,6 +454,18 @@ function folderName(id: string | null | undefined): string {
     setDraft((prev) => (prev ? { ...prev, ...patch } : prev));
   }
 
+  function confirmDeleteLoginPasskey(): void {
+    if (pendingDeletePasskeyIndex == null) return;
+    setDraft((prev) => {
+      if (!prev) return prev;
+      return {
+        ...prev,
+        loginFido2Credentials: prev.loginFido2Credentials.filter((_, index) => index !== pendingDeletePasskeyIndex),
+      };
+    });
+    setPendingDeletePasskeyIndex(null);
+  }
+
   async function seedSshDefaults(force = false): Promise<void> {
     const ticket = ++sshSeedTicketRef.current;
     try {
@@ -699,6 +715,23 @@ function folderName(id: string | null | undefined): string {
     }
   }
 
+  async function confirmRenameFolder(): Promise<void> {
+    if (!pendingRenameFolder) return;
+    const nextName = renameFolderName.trim();
+    if (!nextName) {
+      props.onNotify('error', t('txt_folder_name_is_required'));
+      return;
+    }
+    setBusy(true);
+    try {
+      await props.onRenameFolder(pendingRenameFolder.id, nextName);
+      setPendingRenameFolder(null);
+      setRenameFolderName('');
+    } finally {
+      setBusy(false);
+    }
+  }
+
   async function confirmBulkRestore(): Promise<void> {
     const ids = Object.entries(selectedMap)
       .filter(([, selected]) => selected)
@@ -806,6 +839,10 @@ function folderName(id: string | null | undefined): string {
           onChangeFilter={setSidebarFilter}
           onOpenDeleteAllFolders={() => setDeleteAllFoldersOpen(true)}
           onOpenCreateFolder={() => setCreateFolderOpen(true)}
+          onOpenRenameFolder={(folder) => {
+            setPendingRenameFolder(folder);
+            setRenameFolderName(folder.decName || folder.name || '');
+          }}
           onOpenDeleteFolder={setPendingDeleteFolder}
         />
 
@@ -828,6 +865,7 @@ function folderName(id: string | null | undefined): string {
           sortMenuRef={sortMenuRef}
           listPanelRef={listPanelRef}
           onSearchInput={setSearchInput}
+          onClearSearch={() => setSearchInput('')}
           onSearchCompositionStart={() => setSearchComposing(true)}
           onSearchCompositionEnd={(value) => {
             setSearchComposing(false);
@@ -923,6 +961,7 @@ function folderName(id: string | null | undefined): string {
                 onUpdateDraftLoginUri={updateDraftLoginUri}
                 onUpdateDraftLoginUriMatch={updateDraftLoginUriMatch}
                 onReorderDraftLoginUri={reorderDraftLoginUri}
+                onRequestDeleteLoginPasskey={setPendingDeletePasskeyIndex}
                 onQueueAttachmentFiles={queueAttachmentFiles}
                 onToggleExistingAttachmentRemoval={toggleExistingAttachmentRemoval}
                 onRemoveQueuedAttachment={removeQueuedAttachment}
@@ -948,7 +987,7 @@ function folderName(id: string | null | undefined): string {
                 repromptApprovedCipherId={repromptApprovedCipherId}
                 showPassword={showPassword}
                 totpLive={totpLive}
-                passkeyCreatedAt={passkeyCreatedAt}
+                passkeyCreatedAt={firstPasskeyCreationTime(selectedCipher)}
                 hiddenFieldVisibleMap={hiddenFieldVisibleMap}
                 folderName={folderName}
                 onOpenReprompt={() => setRepromptOpen(true)}
@@ -970,6 +1009,7 @@ function folderName(id: string | null | undefined): string {
       </div>
 
       <VaultDialogs
+        busy={busy}
         fieldModalOpen={fieldModalOpen}
         fieldType={fieldType}
         fieldLabel={fieldLabel}
@@ -985,10 +1025,13 @@ function folderName(id: string | null | undefined): string {
         folders={props.folders}
         createFolderOpen={createFolderOpen}
         newFolderName={newFolderName}
+        renameFolderOpen={!!pendingRenameFolder}
+        renameFolderName={renameFolderName}
         pendingDeleteFolder={pendingDeleteFolder}
         deleteAllFoldersOpen={deleteAllFoldersOpen}
         repromptOpen={repromptOpen}
         repromptPassword={repromptPassword}
+        deletePasskeyOpen={pendingDeletePasskeyIndex != null}
         onConfirmAddField={() => {
           if (!draft) return;
           if (!fieldLabel.trim()) {
@@ -1035,6 +1078,12 @@ function folderName(id: string | null | undefined): string {
           setNewFolderName('');
         }}
         onNewFolderNameChange={setNewFolderName}
+        onConfirmRenameFolder={() => void confirmRenameFolder()}
+        onCancelRenameFolder={() => {
+          setPendingRenameFolder(null);
+          setRenameFolderName('');
+        }}
+        onRenameFolderNameChange={setRenameFolderName}
         onConfirmDeleteFolder={() => void confirmDeleteFolder()}
         onCancelDeleteFolder={() => setPendingDeleteFolder(null)}
         onConfirmDeleteAllFolders={() => void confirmDeleteAllFolders()}
@@ -1045,12 +1094,10 @@ function folderName(id: string | null | undefined): string {
           setRepromptPassword('');
         }}
         onRepromptPasswordChange={setRepromptPassword}
+        onConfirmDeletePasskey={confirmDeleteLoginPasskey}
+        onCancelDeletePasskey={() => setPendingDeletePasskeyIndex(null)}
       />
     </>
   );
 }
 
-
-
-
-

webapp/src/components/backup-center/BackupDestinationDetail.tsx

@@ -134,6 +134,7 @@ export function BackupDestinationDetail(props: BackupDestinationDetailProps) {
     ...COMMON_TIME_ZONES,
     ...props.availableTimeZones,
   ]));
+  const selectedIntervalHours = props.selectedDestination?.schedule.intervalHours ?? 24;
 
   if (props.selectedRecommendedProvider) {
     return (
@@ -216,7 +217,7 @@ export function BackupDestinationDetail(props: BackupDestinationDetailProps) {
                     type="text"
                     inputMode="numeric"
                     pattern="[0-9]*"
-                    value={String(props.selectedDestination.schedule.intervalHours || 24)}
+                    value={String(selectedIntervalHours)}
                     disabled={props.loadingSettings || props.disableWhileBusy}
                     onInput={(event) => {
                       const raw = (event.currentTarget as HTMLInputElement).value.replace(/[^\d]/g, '');
@@ -234,7 +235,7 @@ export function BackupDestinationDetail(props: BackupDestinationDetailProps) {
                 </div>
                 <div className="backup-interval-presets" aria-label={t('txt_backup_interval_hours_presets')}>
                   {INTERVAL_HOUR_PRESETS.map((preset) => {
-                    const active = preset === props.selectedDestination.schedule.intervalHours;
+                    const active = preset === selectedIntervalHours;
                     return (
                       <button
                         key={preset}

webapp/src/components/vault/VaultDialogs.tsx

@@ -4,6 +4,7 @@ import { FIELD_TYPE_OPTIONS, toBooleanFieldValue } from '@/components/vault/vaul
 import { t } from '@/lib/i18n';
 
 interface VaultDialogsProps {
+  busy: boolean;
   fieldModalOpen: boolean;
   fieldType: CustomFieldType;
   fieldLabel: string;
@@ -19,10 +20,13 @@ interface VaultDialogsProps {
   folders: Folder[];
   createFolderOpen: boolean;
   newFolderName: string;
+  renameFolderOpen: boolean;
+  renameFolderName: string;
   pendingDeleteFolder: Folder | null;
   deleteAllFoldersOpen: boolean;
   repromptOpen: boolean;
   repromptPassword: string;
+  deletePasskeyOpen: boolean;
   onConfirmAddField: () => void;
   onCancelFieldModal: () => void;
   onFieldTypeChange: (value: CustomFieldType) => void;
@@ -42,6 +46,9 @@ interface VaultDialogsProps {
   onConfirmCreateFolder: () => void;
   onCancelCreateFolder: () => void;
   onNewFolderNameChange: (value: string) => void;
+  onConfirmRenameFolder: () => void;
+  onCancelRenameFolder: () => void;
+  onRenameFolderNameChange: (value: string) => void;
   onConfirmDeleteFolder: () => void;
   onCancelDeleteFolder: () => void;
   onConfirmDeleteAllFolders: () => void;
@@ -49,6 +56,8 @@ interface VaultDialogsProps {
   onConfirmReprompt: () => void;
   onCancelReprompt: () => void;
   onRepromptPasswordChange: (value: string) => void;
+  onConfirmDeletePasskey: () => void;
+  onCancelDeletePasskey: () => void;
 }
 
 export default function VaultDialogs(props: VaultDialogsProps) {
@@ -100,6 +109,8 @@ export default function VaultDialogs(props: VaultDialogsProps) {
         message={t('txt_archive_item_message')}
         confirmText={t('txt_archive')}
         cancelText={t('txt_cancel')}
+        confirmDisabled={props.busy}
+        cancelDisabled={props.busy}
         onConfirm={props.onConfirmArchive}
         onCancel={props.onCancelArchive}
       />
@@ -110,11 +121,22 @@ export default function VaultDialogs(props: VaultDialogsProps) {
         message={t('txt_archive_selected_items_message', { count: props.selectedCount })}
         confirmText={t('txt_archive')}
         cancelText={t('txt_cancel')}
+        confirmDisabled={props.busy}
+        cancelDisabled={props.busy}
         onConfirm={props.onConfirmBulkArchive}
         onCancel={props.onCancelBulkArchive}
       />
 
-      <ConfirmDialog open={props.pendingDeleteOpen} title={t('txt_delete_item')} message={t('txt_are_you_sure_you_want_to_delete_this_item')} danger onConfirm={props.onConfirmDelete} onCancel={props.onCancelDelete} />
+      <ConfirmDialog
+        open={props.pendingDeleteOpen}
+        title={t('txt_delete_item')}
+        message={t('txt_are_you_sure_you_want_to_delete_this_item')}
+        danger
+        confirmDisabled={props.busy}
+        cancelDisabled={props.busy}
+        onConfirm={props.onConfirmDelete}
+        onCancel={props.onCancelDelete}
+      />
 
       <ConfirmDialog
         open={props.bulkDeleteOpen}
@@ -125,11 +147,23 @@ export default function VaultDialogs(props: VaultDialogsProps) {
             : t('txt_are_you_sure_you_want_to_delete_count_selected_items', { count: props.selectedCount })
         }
         danger
+        confirmDisabled={props.busy}
+        cancelDisabled={props.busy}
         onConfirm={props.onConfirmBulkDelete}
         onCancel={props.onCancelBulkDelete}
       />
 
-      <ConfirmDialog open={props.moveOpen} title={t('txt_move_selected_items')} message={t('txt_choose_destination_folder')} confirmText={t('txt_move')} cancelText={t('txt_cancel')} onConfirm={props.onConfirmMove} onCancel={props.onCancelMove}>
+      <ConfirmDialog
+        open={props.moveOpen}
+        title={t('txt_move_selected_items')}
+        message={t('txt_choose_destination_folder')}
+        confirmText={t('txt_move')}
+        cancelText={t('txt_cancel')}
+        confirmDisabled={props.busy}
+        cancelDisabled={props.busy}
+        onConfirm={props.onConfirmMove}
+        onCancel={props.onCancelMove}
+      >
         <label className="field">
           <span>{t('txt_folder')}</span>
           <select className="input" value={props.moveFolderId} onInput={(e) => props.onMoveFolderIdChange((e.currentTarget as HTMLSelectElement).value)}>
@@ -143,13 +177,40 @@ export default function VaultDialogs(props: VaultDialogsProps) {
         </label>
       </ConfirmDialog>
 
-      <ConfirmDialog open={props.createFolderOpen} title={t('txt_create_folder')} message={t('txt_enter_a_folder_name')} confirmText={t('txt_create')} cancelText={t('txt_cancel')} onConfirm={props.onConfirmCreateFolder} onCancel={props.onCancelCreateFolder}>
+      <ConfirmDialog
+        open={props.createFolderOpen}
+        title={t('txt_create_folder')}
+        message={t('txt_enter_a_folder_name')}
+        confirmText={t('txt_create')}
+        cancelText={t('txt_cancel')}
+        confirmDisabled={props.busy}
+        cancelDisabled={props.busy}
+        onConfirm={props.onConfirmCreateFolder}
+        onCancel={props.onCancelCreateFolder}
+      >
         <label className="field">
           <span>{t('txt_folder_name')}</span>
           <input className="input" value={props.newFolderName} onInput={(e) => props.onNewFolderNameChange((e.currentTarget as HTMLInputElement).value)} />
         </label>
       </ConfirmDialog>
 
+      <ConfirmDialog
+        open={props.renameFolderOpen}
+        title={t('txt_edit')}
+        message={t('txt_enter_a_folder_name')}
+        confirmText={t('txt_save')}
+        cancelText={t('txt_cancel')}
+        confirmDisabled={props.busy}
+        cancelDisabled={props.busy}
+        onConfirm={props.onConfirmRenameFolder}
+        onCancel={props.onCancelRenameFolder}
+      >
+        <label className="field">
+          <span>{t('txt_folder_name')}</span>
+          <input className="input" value={props.renameFolderName} onInput={(e) => props.onRenameFolderNameChange((e.currentTarget as HTMLInputElement).value)} />
+        </label>
+      </ConfirmDialog>
+
       <ConfirmDialog
         open={!!props.pendingDeleteFolder}
         title={t('txt_delete_folder')}
@@ -157,18 +218,53 @@ export default function VaultDialogs(props: VaultDialogsProps) {
         confirmText={t('txt_delete')}
         cancelText={t('txt_cancel')}
         danger
+        confirmDisabled={props.busy}
+        cancelDisabled={props.busy}
         onConfirm={props.onConfirmDeleteFolder}
         onCancel={props.onCancelDeleteFolder}
       />
 
-      <ConfirmDialog open={props.deleteAllFoldersOpen} title={t('txt_delete_all_folders')} message={t('txt_delete_all_folders_message')} confirmText={t('txt_delete')} cancelText={t('txt_cancel')} danger onConfirm={props.onConfirmDeleteAllFolders} onCancel={props.onCancelDeleteAllFolders} />
+      <ConfirmDialog
+        open={props.deleteAllFoldersOpen}
+        title={t('txt_delete_all_folders')}
+        message={t('txt_delete_all_folders_message')}
+        confirmText={t('txt_delete')}
+        cancelText={t('txt_cancel')}
+        danger
+        confirmDisabled={props.busy}
+        cancelDisabled={props.busy}
+        onConfirm={props.onConfirmDeleteAllFolders}
+        onCancel={props.onCancelDeleteAllFolders}
+      />
 
-      <ConfirmDialog open={props.repromptOpen} title={t('txt_unlock_item')} message={t('txt_enter_master_password_to_view_this_item')} confirmText={t('txt_unlock')} cancelText={t('txt_cancel')} showIcon={false} onConfirm={props.onConfirmReprompt} onCancel={props.onCancelReprompt}>
+      <ConfirmDialog
+        open={props.repromptOpen}
+        title={t('txt_unlock_item')}
+        message={t('txt_enter_master_password_to_view_this_item')}
+        confirmText={t('txt_unlock')}
+        cancelText={t('txt_cancel')}
+        showIcon={false}
+        confirmDisabled={props.busy}
+        cancelDisabled={props.busy}
+        onConfirm={props.onConfirmReprompt}
+        onCancel={props.onCancelReprompt}
+      >
         <label className="field">
           <span>{t('txt_master_password')}</span>
           <input className="input" type="password" value={props.repromptPassword} onInput={(e) => props.onRepromptPasswordChange((e.currentTarget as HTMLInputElement).value)} />
         </label>
       </ConfirmDialog>
+
+      <ConfirmDialog
+        open={props.deletePasskeyOpen}
+        title={t('txt_delete_passkey')}
+        message={t('txt_are_you_sure_you_want_to_delete_this_passkey')}
+        confirmText={t('txt_delete')}
+        cancelText={t('txt_cancel')}
+        danger
+        onConfirm={props.onConfirmDeletePasskey}
+        onCancel={props.onCancelDeletePasskey}
+      />
     </>
   );
 }

webapp/src/components/vault/VaultEditor.tsx

@@ -1,4 +1,4 @@
-import type { RefObject } from 'preact';
+import type { JSX, RefObject } from 'preact';
 import { CheckCheck, Download, GripVertical, Paperclip, Plus, RefreshCw, Star, StarOff, Trash2, Upload, X } from 'lucide-preact';
 import { useEffect, useRef, useState } from 'preact/hooks';
 import {
@@ -20,7 +20,15 @@ import {
 import { CSS } from '@dnd-kit/utilities';
 import type { Cipher, Folder, VaultDraft, VaultDraftField } from '@/lib/types';
 import { t } from '@/lib/i18n';
-import { CREATE_TYPE_OPTIONS, cipherTypeLabel, createEmptyLoginUri, formatAttachmentSize, toBooleanFieldValue, WEBSITE_MATCH_OPTIONS } from '@/components/vault/vault-page-helpers';
+import {
+  CREATE_TYPE_OPTIONS,
+  cipherTypeLabel,
+  createEmptyLoginUri,
+  formatAttachmentSize,
+  formatHistoryTime,
+  toBooleanFieldValue,
+  WEBSITE_MATCH_OPTIONS,
+} from '@/components/vault/vault-page-helpers';
 
 interface VaultEditorProps {
   draft: VaultDraft;
@@ -44,6 +52,7 @@ interface VaultEditorProps {
   onUpdateDraftLoginUri: (index: number, value: string) => void;
   onUpdateDraftLoginUriMatch: (index: number, value: number | null) => void;
   onReorderDraftLoginUri: (fromIndex: number, toIndex: number) => void;
+  onRequestDeleteLoginPasskey: (index: number) => void;
   onQueueAttachmentFiles: (list: FileList | null) => void;
   onToggleExistingAttachmentRemoval: (attachmentId: string) => void;
   onRemoveQueuedAttachment: (index: number) => void;
@@ -71,6 +80,7 @@ function SortableWebsiteRow(props: SortableWebsiteRowProps) {
   const { attributes, listeners, setActivatorNodeRef, setNodeRef, transform, transition, isDragging } = useSortable({
     id: props.id,
   });
+  const dragButtonAttributes = attributes as JSX.HTMLAttributes<HTMLButtonElement>;
 
   const style = {
     transform: CSS.Transform.toString(transform),
@@ -89,7 +99,7 @@ function SortableWebsiteRow(props: SortableWebsiteRowProps) {
         className="btn btn-secondary small website-drag-btn"
         title={t('txt_drag_to_reorder')}
         aria-label={t('txt_drag_to_reorder')}
-        {...attributes}
+        {...dragButtonAttributes}
         {...listeners}
       >
         <GripVertical size={14} className="btn-icon" />
@@ -287,6 +297,42 @@ export default function VaultEditor(props: VaultEditorProps) {
               ))}
             </SortableContext>
           </DndContext>
+          {props.draft.loginFido2Credentials.length > 0 && (
+            <>
+              <div className="section-head" style={{ marginTop: '18px' }}>
+                <h4>{t('txt_passkeys')}</h4>
+              </div>
+              <div className="attachment-list">
+                {props.draft.loginFido2Credentials.map((credential, index) => {
+                  const createdAt = String(credential?.creationDate || '').trim();
+                  const label = createdAt
+                    ? t('txt_passkey_created_at_value', { value: formatHistoryTime(createdAt) })
+                    : t('txt_passkey');
+                  return (
+                    <div key={`login-passkey-${index}`} className="attachment-row">
+                      <div className="attachment-main">
+                        <div className="attachment-text">
+                          <strong>{t('txt_passkey')}</strong>
+                          <span>{label}</span>
+                        </div>
+                      </div>
+                      <div className="kv-actions">
+                        <button
+                          type="button"
+                          className="btn btn-secondary small"
+                          disabled={props.busy}
+                          onClick={() => props.onRequestDeleteLoginPasskey(index)}
+                        >
+                          <X size={14} className="btn-icon" />
+                          {t('txt_remove')}
+                        </button>
+                      </div>
+                    </div>
+                  );
+                })}
+              </div>
+            </>
+          )}
         </div>
       )}
 

webapp/src/components/vault/VaultListPanel.tsx

@@ -37,6 +37,7 @@ interface VaultListPanelProps {
   sortMenuRef: RefObject<HTMLDivElement>;
   listPanelRef: RefObject<HTMLDivElement>;
   onSearchInput: (value: string) => void;
+  onClearSearch: () => void;
   onSearchCompositionStart: () => void;
   onSearchCompositionEnd: (value: string) => void;
   onToggleSortMenu: () => void;
@@ -62,6 +63,7 @@ export default function VaultListPanel(props: VaultListPanelProps) {
   return (
     <section className="list-col">
       <div className="list-head">
+        <div className="search-input-wrap">
           <input
             className="search-input"
             placeholder={t('txt_search_your_secure_vault')}
@@ -69,7 +71,24 @@ export default function VaultListPanel(props: VaultListPanelProps) {
             onInput={(e) => props.onSearchInput((e.currentTarget as HTMLInputElement).value)}
             onCompositionStart={props.onSearchCompositionStart}
             onCompositionEnd={(e) => props.onSearchCompositionEnd((e.currentTarget as HTMLInputElement).value)}
+            onKeyDown={(e) => {
+              if (e.key !== 'Escape' || !props.searchInput) return;
+              e.preventDefault();
+              props.onClearSearch();
+            }}
           />
+          {!!props.searchInput && (
+            <button
+              type="button"
+              className="search-clear-btn"
+              aria-label={t('txt_clear_search')}
+              title={t('txt_clear_search_esc')}
+              onClick={props.onClearSearch}
+            >
+              <X size={14} />
+            </button>
+          )}
+        </div>
         <div className="sort-menu-wrap" ref={props.sortMenuRef}>
           <button
             type="button"

webapp/src/components/vault/VaultSidebar.tsx

@@ -8,6 +8,7 @@ import {
   Globe,
   KeyRound,
   LayoutGrid,
+  Pencil,
   ShieldUser,
   Star,
   StickyNote,
@@ -28,6 +29,7 @@ interface VaultSidebarProps {
   onChangeFilter: (filter: SidebarFilter) => void;
   onOpenDeleteAllFolders: () => void;
   onOpenCreateFolder: () => void;
+  onOpenRenameFolder: (folder: Folder) => void;
   onOpenDeleteFolder: (folder: Folder) => void;
 }
 
@@ -113,6 +115,20 @@ export default function VaultSidebar(props: VaultSidebarProps) {
                 {folder.decName || folder.name || folder.id}
               </span>
             </button>
+            <button
+              type="button"
+              className="folder-delete-btn folder-edit-btn"
+              title={t('txt_edit')}
+              aria-label={t('txt_edit')}
+              disabled={props.busy}
+              onClick={(e) => {
+                e.preventDefault();
+                e.stopPropagation();
+                props.onOpenRenameFolder(folder);
+              }}
+            >
+              <Pencil size={12} />
+            </button>
             <button
               type="button"
               className="folder-delete-btn"

webapp/src/components/vault/vault-page-helpers.tsx

@@ -165,7 +165,7 @@ export function websiteIconUrl(host: string): string {
 }
 
 export function createEmptyLoginUri(): VaultDraftLoginUri {
-  return { uri: '', match: null };
+  return { uri: '', match: null, originalUri: '', extra: {} };
 }
 
 export function websiteMatchLabel(value: number | null | undefined): string {
@@ -313,6 +313,10 @@ export function draftFromCipher(cipher: Cipher): VaultDraft {
     draft.loginUris = (cipher.login.uris || []).map((x) => ({
       uri: x.decUri || x.uri || '',
       match: x.match ?? null,
+      originalUri: x.decUri || x.uri || '',
+      extra: Object.fromEntries(
+        Object.entries(x as Record<string, unknown>).filter(([key]) => !['uri', 'match', 'decUri'].includes(key))
+      ),
     }));
     draft.loginFido2Credentials = Array.isArray(cipher.login.fido2Credentials)
       ? cipher.login.fido2Credentials.map((credential) => ({ ...credential }))

webapp/src/hooks/useBackupActions.ts

@@ -1,16 +1,19 @@
 import { useMemo } from 'preact/hooks';
 import {
+  type BackupExportClientProgressEvent,
   buildCompleteAdminBackupExport,
   deleteRemoteBackup,
-  downloadRemoteBackup,
+  downloadRemoteBackup as fetchRemoteBackupPayload,
   getAdminBackupSettings,
   importAdminBackup,
+  inspectRemoteBackupIntegrity,
   listRemoteBackups,
-  restoreRemoteBackup,
+  restoreRemoteBackup as restoreRemoteBackupRequest,
   runAdminBackupNow,
   saveAdminBackupSettings,
 } from '@/lib/api/backup';
 import { downloadBytesAsFile } from '@/lib/download';
+import { dispatchBackupProgress } from '@/lib/backup-restore-progress';
 import type { AuthedFetch } from '@/lib/api/shared';
 
 interface UseBackupActionsOptions {
@@ -25,8 +28,24 @@ export default function useBackupActions(options: UseBackupActionsOptions) {
   return useMemo(
     () => ({
       async exportBackup(includeAttachments: boolean = false) {
-        const payload = await buildCompleteAdminBackupExport(authedFetch, includeAttachments);
+        const payload = await buildCompleteAdminBackupExport(
+          authedFetch,
+          includeAttachments,
+          async (event: BackupExportClientProgressEvent) => {
+            dispatchBackupProgress(event);
+          }
+        );
         downloadBytesAsFile(payload.bytes, payload.fileName, payload.mimeType);
+        dispatchBackupProgress({
+          operation: 'backup-export',
+          source: 'local',
+          step: 'export_complete',
+          fileName: payload.fileName,
+          stageTitle: 'txt_backup_export_progress_complete_title',
+          stageDetail: 'txt_backup_export_progress_complete_detail',
+          done: true,
+          ok: true,
+        });
       },
 
       async importBackup(file: File, replaceExisting: boolean = false) {
@@ -35,6 +54,12 @@ export default function useBackupActions(options: UseBackupActionsOptions) {
         return result;
       },
 
+      async importBackupAllowingChecksumMismatch(file: File, replaceExisting: boolean = false) {
+        const result = await importAdminBackup(authedFetch, file, replaceExisting, true);
+        onImported?.();
+        return result;
+      },
+
       async loadSettings() {
         return getAdminBackupSettings(authedFetch);
       },
@@ -52,16 +77,26 @@ export default function useBackupActions(options: UseBackupActionsOptions) {
       },
 
       async downloadRemoteBackup(destinationId: string, path: string, onProgress?: (percent: number | null) => void) {
-        const payload = await downloadRemoteBackup(authedFetch, destinationId, path, onProgress);
+        const payload = await fetchRemoteBackupPayload(authedFetch, destinationId, path, onProgress);
         downloadBytesAsFile(payload.bytes, payload.fileName, payload.mimeType);
       },
 
+      async inspectRemoteBackup(destinationId: string, path: string) {
+        return inspectRemoteBackupIntegrity(authedFetch, destinationId, path);
+      },
+
       async deleteRemoteBackup(destinationId: string, path: string) {
         await deleteRemoteBackup(authedFetch, destinationId, path);
       },
 
       async restoreRemoteBackup(destinationId: string, path: string, replaceExisting: boolean = false) {
-        const result = await restoreRemoteBackup(authedFetch, destinationId, path, replaceExisting);
+        const result = await restoreRemoteBackupRequest(authedFetch, destinationId, path, replaceExisting);
+        onRestored?.();
+        return result;
+      },
+
+      async restoreRemoteBackupAllowingChecksumMismatch(destinationId: string, path: string, replaceExisting: boolean = false) {
+        const result = await restoreRemoteBackupRequest(authedFetch, destinationId, path, replaceExisting, true);
         onRestored?.();
         return result;
       },

webapp/src/hooks/useVaultSendActions.ts

@@ -43,6 +43,7 @@ import {
   type CiphersImportPayload,
   type ImportedCipherMapEntry,
   updateCipher,
+  updateFolder,
   unarchiveCipher,
   uploadCipherAttachment,
 } from '@/lib/api/vault';
@@ -340,6 +341,28 @@ export default function useVaultSendActions(options: UseVaultSendActionsOptions)
         }
       },
 
+      async renameFolder(folderId: string, name: string) {
+        const id = String(folderId || '').trim();
+        const nextName = String(name || '').trim();
+        if (!id) {
+          onNotify('error', t('txt_folder_not_found'));
+          return;
+        }
+        if (!nextName) {
+          onNotify('error', t('txt_folder_name_is_required'));
+          return;
+        }
+        try {
+          if (!session) throw new Error(t('txt_vault_key_unavailable'));
+          await updateFolder(authedFetch, session, id, nextName);
+          await refetchFolders();
+          onNotify('success', t('txt_folder_updated'));
+        } catch (error) {
+          onNotify('error', error instanceof Error ? error.message : t('txt_update_folder_failed'));
+          throw error;
+        }
+      },
+
       async bulkRestoreVaultItems(ids: string[]) {
         try {
           await bulkRestoreCiphers(authedFetch, ids);

webapp/src/lib/admin-backup-portable.ts

@@ -1,4 +1,4 @@
-import { base64ToBytes, decryptBw } from './crypto';
+import { base64ToBytes, decryptBw, toBufferSource } from './crypto';
 import type { AdminBackupSettings, BackupSettingsPortablePayload } from './api/backup';
 import type { Profile, SessionState } from './types';
 
@@ -9,7 +9,7 @@ const AES_GCM_ALGORITHM = 'AES-GCM';
 async function importPortablePrivateKey(pkcs8: Uint8Array): Promise<CryptoKey> {
   return crypto.subtle.importKey(
     'pkcs8',
-    pkcs8,
+    toBufferSource(pkcs8),
     { name: PORTABLE_ALGORITHM, hash: PORTABLE_HASH },
     false,
     ['decrypt']
@@ -17,7 +17,7 @@ async function importPortablePrivateKey(pkcs8: Uint8Array): Promise<CryptoKey> {
 }
 
 async function importPortableAesKey(keyBytes: Uint8Array): Promise<CryptoKey> {
-  return crypto.subtle.importKey('raw', keyBytes, { name: AES_GCM_ALGORITHM }, false, ['decrypt']);
+  return crypto.subtle.importKey('raw', toBufferSource(keyBytes), { name: AES_GCM_ALGORITHM }, false, ['decrypt']);
 }
 
 export async function decryptPortableBackupSettings(
@@ -50,15 +50,15 @@ export async function decryptPortableBackupSettings(
     await crypto.subtle.decrypt(
       { name: PORTABLE_ALGORITHM },
       privateKey,
-      base64ToBytes(wrap.wrappedKey)
+      toBufferSource(base64ToBytes(wrap.wrappedKey))
     )
   );
   const aesKey = await importPortableAesKey(portableDek);
   const plaintext = new Uint8Array(
     await crypto.subtle.decrypt(
-      { name: AES_GCM_ALGORITHM, iv: base64ToBytes(portable.iv) },
+      { name: AES_GCM_ALGORITHM, iv: toBufferSource(base64ToBytes(portable.iv)) },
       aesKey,
-      base64ToBytes(portable.ciphertext)
+      toBufferSource(base64ToBytes(portable.ciphertext))
     )
   );
   return JSON.parse(new TextDecoder().decode(plaintext)) as AdminBackupSettings;

webapp/src/lib/api/auth.ts

@@ -10,8 +10,10 @@ import type {
 import { parseJson, type AuthedFetch, type SessionSetter } from './shared';
 
 const SESSION_KEY = 'nodewarden.web.session.v4';
+const PROFILE_SNAPSHOT_KEY = 'nodewarden.web.profile-snapshot.v1';
 const DEVICE_IDENTIFIER_KEY = 'nodewarden.web.device.identifier.v1';
 const TOTP_REMEMBER_TOKEN_KEY = 'nodewarden.web.totp.remember-token.v1';
+const WEB_SESSION_HEADER = 'X-NodeWarden-Web-Session';
 
 export interface PreloginResult {
   hash: string;
@@ -26,6 +28,24 @@ export interface PreloginKdfConfig {
   kdfParallelism: number | null;
 }
 
+interface PersistedSessionState {
+  email: string;
+  authMode: 'token' | 'web-cookie';
+}
+
+interface RefreshFailure {
+  ok: false;
+  transient: boolean;
+  error: string;
+}
+
+interface RefreshSuccess {
+  ok: true;
+  token: TokenSuccess;
+}
+
+type RefreshResult = RefreshFailure | RefreshSuccess;
+
 function randomHex(length: number): string {
   const bytes = crypto.getRandomValues(new Uint8Array(Math.max(1, Math.ceil(length / 2))));
   return Array.from(bytes).map((b) => b.toString(16).padStart(2, '0')).join('').slice(0, length);
@@ -66,12 +86,19 @@ export function loadSession(): SessionState | null {
   try {
     const raw = localStorage.getItem(SESSION_KEY);
     if (!raw) return null;
-    const parsed = JSON.parse(raw) as SessionState;
+    const parsed = JSON.parse(raw) as Partial<SessionState> & Partial<PersistedSessionState>;
-    if (!parsed.accessToken || !parsed.refreshToken) return null;
+    if (parsed.authMode === 'web-cookie' && parsed.email) {
+      return {
+        email: parsed.email,
+        authMode: 'web-cookie',
+      };
+    }
+    if (!parsed.accessToken || !parsed.refreshToken || !parsed.email) return null;
     return {
       accessToken: parsed.accessToken,
       refreshToken: parsed.refreshToken,
       email: parsed.email,
+      authMode: 'token',
     };
   } catch {
     return null;
@@ -83,14 +110,35 @@ export function saveSession(session: SessionState | null): void {
     localStorage.removeItem(SESSION_KEY);
     return;
   }
-  const persisted: SessionState = {
+  const persisted: PersistedSessionState = {
-    accessToken: session.accessToken,
-    refreshToken: session.refreshToken,
     email: session.email,
+    authMode: session.authMode === 'token' ? 'token' : 'web-cookie',
   };
   localStorage.setItem(SESSION_KEY, JSON.stringify(persisted));
 }
 
+export function loadProfileSnapshot(email?: string | null): Profile | null {
+  try {
+    const raw = localStorage.getItem(PROFILE_SNAPSHOT_KEY);
+    if (!raw) return null;
+    const parsed = JSON.parse(raw) as Profile;
+    if (!parsed?.email || !parsed?.key) return null;
+    if (email && parsed.email !== email) return null;
+    return parsed;
+  } catch {
+    return null;
+  }
+}
+
+export function saveProfileSnapshot(profile: Profile | null): void {
+  if (!profile) return;
+  localStorage.setItem(PROFILE_SNAPSHOT_KEY, JSON.stringify(profile));
+}
+
+export function clearProfileSnapshot(): void {
+  localStorage.removeItem(PROFILE_SNAPSHOT_KEY);
+}
+
 export function getCurrentDeviceIdentifier(): string {
   return (localStorage.getItem(DEVICE_IDENTIFIER_KEY) || '').trim();
 }
@@ -170,7 +218,10 @@ export async function loginWithPassword(
   }
   const resp = await fetch('/identity/connect/token', {
     method: 'POST',
-    headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
+    headers: {
+      'Content-Type': 'application/x-www-form-urlencoded',
+      [WEB_SESSION_HEADER]: '1',
+    },
     body: body.toString(),
   });
   const json = (await parseJson<TokenSuccess & TokenError>(resp)) || {};
@@ -183,18 +234,60 @@ export async function loginWithPassword(
   return json;
 }
 
-export async function refreshAccessToken(refreshToken: string): Promise<TokenSuccess | null> {
+function isTransientRefreshStatus(status: number): boolean {
+  return status === 0 || status === 429 || status >= 500;
+}
+
+export async function refreshAccessToken(session: SessionState): Promise<RefreshResult> {
   const body = new URLSearchParams();
   body.set('grant_type', 'refresh_token');
-  body.set('refresh_token', refreshToken);
+  if (session.authMode !== 'web-cookie' && session.refreshToken) {
+    body.set('refresh_token', session.refreshToken);
+  }
+  try {
     const resp = await fetch('/identity/connect/token', {
       method: 'POST',
-    headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
+      headers: {
+        'Content-Type': 'application/x-www-form-urlencoded',
+        ...(session.authMode === 'web-cookie' ? { [WEB_SESSION_HEADER]: '1' } : {}),
+      },
       body: body.toString(),
     });
-  if (!resp.ok) return null;
+    if (!resp.ok) {
+      const json = await parseJson<TokenError>(resp);
+      return {
+        ok: false,
+        transient: isTransientRefreshStatus(resp.status),
+        error: json?.error_description || json?.error || 'Session refresh failed',
+      };
+    }
     const json = await parseJson<TokenSuccess>(resp);
-  return json || null;
+    if (!json?.access_token) {
+      return { ok: false, transient: false, error: 'Session refresh failed' };
+    }
+    return { ok: true, token: json };
+  } catch (error) {
+    return {
+      ok: false,
+      transient: true,
+      error: error instanceof Error ? error.message : 'Network error',
+    };
+  }
+}
+
+export async function revokeCurrentSession(session: SessionState | null): Promise<void> {
+  const body = new URLSearchParams();
+  if (session?.authMode !== 'web-cookie' && session?.refreshToken) {
+    body.set('token', session.refreshToken);
+  }
+  await fetch('/identity/connect/revocation', {
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/x-www-form-urlencoded',
+      ...(session?.authMode === 'web-cookie' ? { [WEB_SESSION_HEADER]: '1' } : {}),
+    },
+    body: body.toString(),
+  }).catch(() => undefined);
 }
 
 export async function registerAccount(args: {
@@ -279,18 +372,22 @@ export function createAuthedFetch(getSession: () => SessionState | null, setSess
     headers.set('Authorization', `Bearer ${session.accessToken}`);
 
     let resp = await fetch(input, { ...init, headers });
-    if (resp.status !== 401 || !session.refreshToken) return resp;
+    if (resp.status !== 401 || (!session.refreshToken && session.authMode !== 'web-cookie')) return resp;
 
-    const refreshed = await refreshAccessToken(session.refreshToken);
+    const refreshed = await refreshAccessToken(session);
-    if (!refreshed?.access_token) {
+    if (!refreshed.ok) {
+      if (refreshed.transient) {
+        throw new Error(refreshed.error || 'Session refresh temporarily unavailable');
+      }
       setSession(null);
       throw new Error('Session expired');
     }
 
     const nextSession: SessionState = {
       ...session,
-      accessToken: refreshed.access_token,
+      accessToken: refreshed.token.access_token,
-      refreshToken: refreshed.refresh_token || session.refreshToken,
+      refreshToken: refreshed.token.refresh_token || session.refreshToken,
+      authMode: refreshed.token.web_session ? 'web-cookie' : (session.authMode || 'token'),
     };
     setSession(nextSession);
     saveSession(nextSession);

webapp/src/lib/api/backup.ts

@@ -16,6 +16,7 @@ import {
   type AuthedFetch,
 } from './shared';
 import { readResponseBytesWithProgress } from '../download';
+import { toBufferSource } from '../crypto';
 import { unzipSync, zipSync } from 'fflate';
 
 export type {
@@ -57,6 +58,21 @@ export interface AdminBackupRunResponse {
   settings: AdminBackupSettings;
 }
 
+export interface BackupFileIntegrityCheckResult {
+  hasChecksumPrefix: boolean;
+  expectedPrefix: string | null;
+  actualPrefix: string;
+  matches: boolean;
+}
+
+export interface RemoteBackupIntegrityResponse {
+  object: 'backup-remote-integrity';
+  destinationId: string;
+  path: string;
+  fileName: string;
+  integrity: BackupFileIntegrityCheckResult;
+}
+
 export interface RemoteBackupItem {
   path: string;
   name: string;
@@ -109,6 +125,18 @@ export interface AdminBackupExportPayload {
   bytes: Uint8Array;
 }
 
+export interface BackupExportClientProgressEvent {
+  operation: 'backup-export';
+  source: 'local';
+  step: string;
+  fileName: string;
+  stageTitle: string;
+  stageDetail: string;
+  done?: boolean;
+  ok?: boolean;
+  error?: string | null;
+}
+
 interface BackupExportManifestAttachmentBlob {
   cipherId: string;
   attachmentId: string;
@@ -119,6 +147,25 @@ interface BackupExportManifest {
   attachmentBlobs?: BackupExportManifestAttachmentBlob[];
 }
 
+const BACKUP_FILE_HASH_PREFIX_LENGTH = 5;
+
+function extractBackupTimestampFromFileName(fileName: string): string | null {
+  const match = String(fileName || '').match(/nodewarden_backup_(\d{8})_(\d{6})(?:_[0-9a-f]{5})?\.zip$/i);
+  if (!match) return null;
+  return `${match[1]}_${match[2]}`;
+}
+
+function buildBackupFileName(timestamp: string, checksumPrefix: string): string {
+  return `nodewarden_backup_${timestamp}_${checksumPrefix}.zip`;
+}
+
+async function applyBackupFileIntegrityName(fileName: string, bytes: Uint8Array): Promise<string> {
+  const integrity = await verifyBackupFileIntegrity(bytes, fileName);
+  const timestamp = extractBackupTimestampFromFileName(fileName);
+  if (!timestamp) return fileName;
+  return buildBackupFileName(timestamp, integrity.actualPrefix);
+}
+
 export async function exportAdminBackup(
   authedFetch: AuthedFetch,
   includeAttachments: boolean = false
@@ -149,10 +196,21 @@ export async function downloadAdminBackupAttachmentBlob(
 
 export async function buildCompleteAdminBackupExport(
   authedFetch: AuthedFetch,
-  includeAttachments: boolean = false
+  includeAttachments: boolean = false,
+  onProgress?: (event: BackupExportClientProgressEvent) => void | Promise<void>
 ): Promise<AdminBackupExportPayload> {
   const payload = await exportAdminBackup(authedFetch, includeAttachments);
-  if (!includeAttachments) return payload;
+  if (!includeAttachments) {
+    await onProgress?.({
+      operation: 'backup-export',
+      source: 'local',
+      step: 'export_client_save',
+      fileName: payload.fileName,
+      stageTitle: 'txt_backup_export_progress_save_title',
+      stageDetail: 'txt_backup_export_progress_save_detail',
+    });
+    return payload;
+  }
 
   const zipped = unzipSync(payload.bytes);
   const manifestBytes = zipped['manifest.json'];
@@ -167,14 +225,41 @@ export async function buildCompleteAdminBackupExport(
     throw new Error(t('txt_backup_export_failed'));
   }
 
+  await onProgress?.({
+    operation: 'backup-export',
+    source: 'local',
+    step: 'export_client_fetch_attachments',
+    fileName: payload.fileName,
+    stageTitle: 'txt_backup_export_progress_fetch_attachments_title',
+    stageDetail: 'txt_backup_export_progress_fetch_attachments_detail',
+  });
   for (const attachment of manifest.attachmentBlobs || []) {
     const bytes = await downloadAdminBackupAttachmentBlob(authedFetch, attachment.blobName);
     zipped[`attachments/${attachment.cipherId}/${attachment.attachmentId}.bin`] = bytes;
   }
 
+  await onProgress?.({
+    operation: 'backup-export',
+    source: 'local',
+    step: 'export_client_rebuild',
+    fileName: payload.fileName,
+    stageTitle: 'txt_backup_export_progress_rebuild_title',
+    stageDetail: 'txt_backup_export_progress_rebuild_detail',
+  });
+  const rebuiltBytes = zipSync(zipped, { level: 0 });
+  const rebuiltFileName = await applyBackupFileIntegrityName(payload.fileName, rebuiltBytes);
+  await onProgress?.({
+    operation: 'backup-export',
+    source: 'local',
+    step: 'export_client_save',
+    fileName: rebuiltFileName,
+    stageTitle: 'txt_backup_export_progress_save_title',
+    stageDetail: 'txt_backup_export_progress_save_detail',
+  });
   return {
     ...payload,
-    bytes: zipSync(zipped, { level: 0 }),
+    bytes: rebuiltBytes,
+    fileName: rebuiltFileName,
   };
 }
 
@@ -276,6 +361,29 @@ export async function downloadRemoteBackup(
   return { fileName, mimeType, bytes };
 }
 
+export function extractBackupFileChecksumPrefix(fileName: string): string | null {
+  const normalized = String(fileName || '').trim();
+  const match = normalized.match(/_([0-9a-f]{5})\.zip$/i);
+  return match ? match[1].toLowerCase() : null;
+}
+
+async function sha256Hex(bytes: Uint8Array): Promise<string> {
+  const digest = await crypto.subtle.digest('SHA-256', toBufferSource(bytes));
+  return Array.from(new Uint8Array(digest)).map((byte) => byte.toString(16).padStart(2, '0')).join('');
+}
+
+export async function verifyBackupFileIntegrity(bytes: Uint8Array, fileName: string): Promise<BackupFileIntegrityCheckResult> {
+  const expectedPrefix = extractBackupFileChecksumPrefix(fileName);
+  const actualHash = await sha256Hex(bytes);
+  const actualPrefix = actualHash.slice(0, BACKUP_FILE_HASH_PREFIX_LENGTH);
+  return {
+    hasChecksumPrefix: !!expectedPrefix,
+    expectedPrefix,
+    actualPrefix,
+    matches: !expectedPrefix || expectedPrefix === actualPrefix,
+  };
+}
+
 export async function deleteRemoteBackup(
   authedFetch: AuthedFetch,
   destinationId: string,
@@ -288,16 +396,32 @@ export async function deleteRemoteBackup(
   if (!resp.ok) throw new Error(await parseErrorMessage(resp, t('txt_backup_remote_delete_failed')));
 }
 
+export async function inspectRemoteBackupIntegrity(
+  authedFetch: AuthedFetch,
+  destinationId: string,
+  path: string
+): Promise<RemoteBackupIntegrityResponse> {
+  const params = new URLSearchParams();
+  params.set('destinationId', destinationId);
+  params.set('path', path);
+  const resp = await authedFetch(`/api/admin/backup/remote/integrity?${params.toString()}`, { method: 'GET' });
+  if (!resp.ok) throw new Error(await parseErrorMessage(resp, t('txt_backup_remote_download_failed')));
+  const body = await parseJson<RemoteBackupIntegrityResponse>(resp);
+  if (!body?.integrity || !body?.fileName) throw new Error(t('txt_backup_remote_invalid_response'));
+  return body;
+}
+
 export async function restoreRemoteBackup(
   authedFetch: AuthedFetch,
   destinationId: string,
   path: string,
-  replaceExisting: boolean = false
+  replaceExisting: boolean = false,
+  allowChecksumMismatch: boolean = false
 ): Promise<AdminBackupImportResponse> {
   const resp = await authedFetch('/api/admin/backup/remote/restore', {
     method: 'POST',
     headers: { 'Content-Type': 'application/json' },
-    body: JSON.stringify({ destinationId, path, replaceExisting }),
+    body: JSON.stringify({ destinationId, path, replaceExisting, allowChecksumMismatch }),
   });
   if (!resp.ok) throw new Error(await parseErrorMessage(resp, t('txt_backup_remote_restore_failed')));
   const body = await parseJson<AdminBackupImportResponse>(resp);
@@ -308,13 +432,17 @@ export async function restoreRemoteBackup(
 export async function importAdminBackup(
   authedFetch: AuthedFetch,
   file: File,
-  replaceExisting: boolean = false
+  replaceExisting: boolean = false,
+  allowChecksumMismatch: boolean = false
 ): Promise<AdminBackupImportResponse> {
   const formData = new FormData();
   formData.set('file', file, file.name || 'nodewarden_backup.zip');
   if (replaceExisting) {
     formData.set('replaceExisting', '1');
   }
+  if (allowChecksumMismatch) {
+    formData.set('allowChecksumMismatch', '1');
+  }
 
   const resp = await authedFetch('/api/admin/backup/import', {
     method: 'POST',

webapp/src/lib/api/send.ts

@@ -1,6 +1,7 @@
 import { base64ToBytes, bytesToBase64, decryptBw, decryptBwFileData, decryptStr, encryptBw, encryptBwFileData, hkdf, pbkdf2 } from '../crypto';
 import type { Send, SendDraft, SessionState } from '../types';
 import { chunkArray, createApiError, parseErrorMessage, parseJson, uploadDirectEncryptedPayload, type AuthedFetch } from './shared';
+import { loadVaultSyncSnapshot } from './vault-sync';
 
 function toIsoDateFromDays(value: string, required: boolean): string | null {
   const raw = String(value || '').trim();
@@ -61,10 +62,8 @@ function parseMaxAccessCountRaw(value: string): number | null {
 }
 
 export async function getSends(authedFetch: AuthedFetch): Promise<Send[]> {
-  const resp = await authedFetch('/api/sends');
+  const body = await loadVaultSyncSnapshot(authedFetch);
-  if (!resp.ok) throw new Error('Failed to load sends');
+  return body.sends || [];
-  const body = await parseJson<{ object: 'list'; data: Send[] }>(resp);
-  return body?.data || [];
 }
 
 export async function createSend(
@@ -152,10 +151,13 @@ export async function createSend(
   const uploadInfo = await parseJson<{ url?: string; sendResponse?: Send; fileUploadType?: number }>(fileResp);
   const uploadUrl = uploadInfo?.url;
   if (!uploadUrl) throw new Error('Create file send failed: missing upload URL');
+  if (!session.accessToken) throw new Error('Unauthorized');
+  const payload = new ArrayBuffer(encryptedFileBytes.byteLength);
+  new Uint8Array(payload).set(encryptedFileBytes);
   const uploadResp = await uploadDirectEncryptedPayload({
     accessToken: session.accessToken,
     uploadUrl,
-    payload: encryptedFileBytes,
+    payload,
     fileUploadType: uploadInfo?.fileUploadType,
     unsupportedMessage: 'Unsupported send upload type',
     onProgress,

webapp/src/lib/api/shared.ts

@@ -63,14 +63,14 @@ interface UploadWithProgressOptions {
   accessToken?: string;
   method?: string;
   headers?: HeadersInit;
-  body?: Document | XMLHttpRequestBodyInit | null;
+  body?: XMLHttpRequestBodyInit | null;
   onProgress?: (percent: number | null) => void;
 }
 
 interface DirectEncryptedUploadOptions {
   accessToken: string;
   uploadUrl: string;
-  payload: ArrayBuffer | Uint8Array;
+  payload: XMLHttpRequestBodyInit;
   fileUploadType: number | null | undefined;
   unsupportedMessage: string;
   onProgress?: (percent: number | null) => void;

webapp/src/lib/api/vault-sync.ts

@@ -0,0 +1,31 @@
+import type { Cipher, Folder, Send } from '../types';
+import { parseJson, type AuthedFetch } from './shared';
+
+interface VaultSyncResponse {
+  ciphers?: Cipher[];
+  folders?: Folder[];
+  sends?: Send[];
+}
+
+const pendingSyncRequests = new WeakMap<AuthedFetch, Promise<VaultSyncResponse>>();
+
+export async function loadVaultSyncSnapshot(authedFetch: AuthedFetch): Promise<VaultSyncResponse> {
+  const existing = pendingSyncRequests.get(authedFetch);
+  if (existing) return existing;
+
+  const request = (async () => {
+    const resp = await authedFetch('/api/sync');
+    if (!resp.ok) throw new Error('Failed to load vault');
+    const body = await parseJson<VaultSyncResponse>(resp);
+    return body || {};
+  })();
+
+  pendingSyncRequests.set(authedFetch, request);
+  try {
+    return await request;
+  } finally {
+    if (pendingSyncRequests.get(authedFetch) === request) {
+      pendingSyncRequests.delete(authedFetch);
+    }
+  }
+}

webapp/src/lib/api/vault.ts

@@ -2,7 +2,6 @@ import { base64ToBytes, decryptBw, decryptBwFileData, decryptStr, encryptBw, enc
 import type {
   Cipher,
   Folder,
-  ListResponse,
   SessionState,
   VaultDraft,
   VaultDraftField,
@@ -16,12 +15,11 @@ import {
   type AuthedFetch,
 } from './shared';
 import { readResponseBytesWithProgress } from '../download';
+import { loadVaultSyncSnapshot } from './vault-sync';
 
 export async function getFolders(authedFetch: AuthedFetch): Promise<Folder[]> {
-  const resp = await authedFetch('/api/folders');
+  const body = await loadVaultSyncSnapshot(authedFetch);
-  if (!resp.ok) throw new Error('Failed to load folders');
+  return body.folders || [];
-  const body = await parseJson<ListResponse<Folder>>(resp);
-  return body?.data || [];
 }
 
 export async function createFolder(
@@ -93,10 +91,8 @@ export async function updateFolder(
 }
 
 export async function getCiphers(authedFetch: AuthedFetch): Promise<Cipher[]> {
-  const resp = await authedFetch('/api/ciphers?deleted=true');
+  const body = await loadVaultSyncSnapshot(authedFetch);
-  if (!resp.ok) throw new Error('Failed to load ciphers');
+  return body.ciphers || [];
-  const body = await parseJson<ListResponse<Cipher>>(resp);
-  return body?.data || [];
 }
 
 export interface CiphersImportPayload {
@@ -240,6 +236,7 @@ export async function uploadCipherAttachment(
   const attachmentId = String(meta.attachmentId || '').trim();
   const uploadUrl = String(meta.url || '').trim();
   if (!attachmentId || !uploadUrl) throw new Error('Create attachment failed');
+  if (!session.accessToken) throw new Error('Unauthorized');
 
   const payload = new ArrayBuffer(encryptedBytes.byteLength);
   new Uint8Array(payload).set(encryptedBytes);
@@ -371,12 +368,20 @@ async function encryptUris(
   uris: VaultDraft['loginUris'],
   enc: Uint8Array,
   mac: Uint8Array
-): Promise<Array<{ uri: string | null; match: number | null }>> {
+): Promise<Array<Record<string, unknown>>> {
-  const out: Array<{ uri: string | null; match: number | null }> = [];
+  const out: Array<Record<string, unknown>> = [];
   for (const entry of uris || []) {
     const trimmed = String(entry?.uri || '').trim();
     if (!trimmed) continue;
+    const preservedExtra =
+      entry?.extra && typeof entry.extra === 'object'
+        ? { ...entry.extra }
+        : {};
+    if (String(entry?.originalUri || '').trim() !== trimmed) {
+      delete preservedExtra.uriChecksum;
+    }
     out.push({
+      ...preservedExtra,
       uri: await encryptTextValue(trimmed, enc, mac),
       match: typeof entry?.match === 'number' && Number.isFinite(entry.match) ? entry.match : null,
     });
@@ -494,7 +499,12 @@ async function buildCipherPayload(
       cipher?.login && Array.isArray((cipher.login as any).fido2Credentials)
         ? (cipher.login as any).fido2Credentials
         : draft.loginFido2Credentials;
+    const existingLogin =
+      cipher?.login && typeof cipher.login === 'object'
+        ? { ...(cipher.login as Record<string, unknown>) }
+        : {};
     payload.login = {
+      ...existingLogin,
       username: await encryptTextValue(draft.loginUsername, keys.enc, keys.mac),
       password: await encryptTextValue(draft.loginPassword, keys.enc, keys.mac),
       totp: await encryptTextValue(draft.loginTotp, keys.enc, keys.mac),

webapp/src/lib/app-auth.ts

@@ -2,6 +2,7 @@ import {
   createAuthedFetch,
   deriveLoginHashLocally,
   getProfile,
+  loadProfileSnapshot,
   loadSession,
   loginWithPassword,
   refreshAccessToken,
@@ -26,6 +27,7 @@ export interface BootstrapAppResult {
   session: SessionState | null;
   profile: Profile | null;
   phase: AppPhase;
+  needsBackgroundHydration?: boolean;
 }
 
 export interface InitialAppBootstrapState {
@@ -51,8 +53,9 @@ export interface RecoverTwoFactorResult {
   newRecoveryCode: string | null;
 }
 
-function decodeJwtExp(accessToken: string): number | null {
+function decodeJwtExp(accessToken: string | undefined): number | null {
   try {
+    if (!accessToken) return null;
     const parts = accessToken.split('.');
     if (parts.length < 2) return null;
     const payload = parts[1].replace(/-/g, '+').replace(/_/g, '/');
@@ -66,23 +69,24 @@ function decodeJwtExp(accessToken: string): number | null {
 }
 
 async function maybeRefreshSession(session: SessionState): Promise<SessionState | null> {
-  if (!session.refreshToken) return session;
+  if (!session.refreshToken && session.authMode !== 'web-cookie') return session.accessToken ? session : null;
   const exp = decodeJwtExp(session.accessToken);
   const nowSeconds = Math.floor(Date.now() / 1000);
 
-  if (exp !== null && exp - nowSeconds > 60) {
+  if (session.accessToken && exp !== null && exp - nowSeconds > 60) {
     return session;
   }
 
-  const refreshed = await refreshAccessToken(session.refreshToken);
+  const refreshed = await refreshAccessToken(session);
-  if (!refreshed?.access_token) {
+  if (!refreshed.ok) {
-    return exp !== null && exp > nowSeconds ? session : null;
+    return session.accessToken && exp !== null && exp > nowSeconds ? session : null;
   }
 
   return {
     ...session,
-    accessToken: refreshed.access_token,
+    accessToken: refreshed.token.access_token,
-    refreshToken: refreshed.refresh_token || session.refreshToken,
+    refreshToken: refreshed.token.refresh_token || session.refreshToken,
+    authMode: refreshed.token.web_session ? 'web-cookie' : (session.authMode || 'token'),
   };
 }
 
@@ -197,31 +201,51 @@ export async function bootstrapAppSession(initial: InitialAppBootstrapState = re
     };
   }
 
-  try {
+  const cachedProfile = loadProfileSnapshot(loaded.email);
-    const session = await maybeRefreshSession(loaded);
+  if (cachedProfile) {
-    if (!session) {
+    return {
-      throw new Error('Session expired');
+      defaultKdfIterations,
+      jwtWarning: null,
+      session: loaded,
+      profile: cachedProfile,
+      phase: 'locked',
+      needsBackgroundHydration: true,
+    };
   }
+
+  return {
+    defaultKdfIterations,
+    jwtWarning: null,
+    session: loaded,
+    profile: null,
+    phase: 'locked',
+    needsBackgroundHydration: true,
+  };
+}
+
+export async function hydrateLockedSession(
+  session: SessionState,
+  fallbackProfile: Profile | null = null
+): Promise<{ session: SessionState | null; profile: Profile | null }> {
+  const refreshedSession = await maybeRefreshSession(session);
+  if (!refreshedSession?.accessToken) {
+    return { session: null, profile: null };
+  }
+  try {
     const profile = await getProfile(
       createAuthedFetch(
-        () => session,
+        () => refreshedSession,
         () => {}
       )
     );
     return {
-      defaultKdfIterations,
+      session: refreshedSession,
-      jwtWarning: null,
-      session,
       profile,
-      phase: 'locked',
     };
   } catch {
     return {
-      defaultKdfIterations,
+      session: refreshedSession,
-      jwtWarning: null,
+      profile: fallbackProfile,
-      session: null,
-      profile: null,
-      phase: initial.phase === 'register' ? 'register' : 'login',
     };
   }
 }
@@ -236,6 +260,7 @@ export async function completeLogin(
     accessToken: token.access_token,
     refreshToken: token.refresh_token,
     email: normalizedEmail,
+    authMode: token.web_session ? 'web-cookie' : 'token',
   };
   const tempFetch = createAuthedFetch(
     () => baseSession,
@@ -359,3 +384,4 @@ export async function performUnlock(
   }
   return { ...refreshedSession, ...keys };
 }
+

webapp/src/lib/app-support.ts

@@ -17,6 +17,7 @@ export interface WebVaultSignalRInvocation {
       UserId?: string;
       Date?: string;
       RevisionDate?: string;
+      [key: string]: unknown;
     };
   }>;
 }
@@ -160,11 +161,6 @@ export function importCipherToDraft(cipher: Record<string, unknown>, folderId: s
     draft.loginUsername = asText(login.username);
     draft.loginPassword = asText(login.password);
     draft.loginTotp = asText(login.totp);
-    draft.loginFido2Credentials = Array.isArray(login.fido2Credentials)
-      ? login.fido2Credentials
-          .filter((credential): credential is Record<string, unknown> => !!credential && typeof credential === 'object')
-          .map((credential) => ({ ...credential }))
-      : [];
     const urisRaw = Array.isArray(login.uris) ? login.uris : [];
     const uris = urisRaw
       .map((u) => {
@@ -174,10 +170,17 @@ export function importCipherToDraft(cipher: Record<string, unknown>, folderId: s
         return {
           uri,
           match: typeof matchRaw === 'number' && Number.isFinite(matchRaw) ? matchRaw : null,
+          originalUri: uri,
+          extra: Object.fromEntries(
+            Object.entries(row).filter(([key]) => !['uri', 'match'].includes(key))
+          ),
         };
       })
       .filter((u) => !!u.uri);
-    draft.loginUris = uris.length ? uris : [{ uri: '', match: null }];
+    draft.loginUris = uris.length ? uris : [{ uri: '', match: null, originalUri: '', extra: {} }];
+    draft.loginFido2Credentials = Array.isArray(login.fido2Credentials)
+      ? login.fido2Credentials.filter((item): item is Record<string, unknown> => !!item && typeof item === 'object')
+      : [];
   } else if (type === 3) {
     const card = (cipher.card || {}) as Record<string, unknown>;
     draft.cardholderName = asText(card.cardholderName);

webapp/src/lib/backup-restore-progress.ts

@@ -0,0 +1,27 @@
+export type BackupProgressOperation = 'backup-restore' | 'backup-export' | 'backup-remote-run';
+
+export interface BackupProgressDetail {
+  operation: BackupProgressOperation;
+  source?: 'local' | 'remote';
+  step: string;
+  fileName: string;
+  stageTitle?: string;
+  stageDetail?: string;
+  replaceExisting?: boolean;
+  done?: boolean;
+  ok?: boolean;
+  error?: string | null;
+  Date?: string;
+}
+
+export type BackupRestoreProgressDetail = BackupProgressDetail;
+
+export const BACKUP_PROGRESS_EVENT = 'nodewarden:backup-progress';
+export const BACKUP_RESTORE_PROGRESS_EVENT = BACKUP_PROGRESS_EVENT;
+
+export function dispatchBackupProgress(detail: BackupProgressDetail): void {
+  if (typeof window === 'undefined') return;
+  window.dispatchEvent(new CustomEvent<BackupProgressDetail>(BACKUP_PROGRESS_EVENT, { detail }));
+}
+
+export const dispatchBackupRestoreProgress = dispatchBackupProgress;

webapp/src/lib/crypto.ts

@@ -18,7 +18,7 @@ export function concatBytes(a: Uint8Array, b: Uint8Array): Uint8Array {
   return out;
 }
 
-function toBufferSource(bytes: Uint8Array): ArrayBuffer {
+export function toBufferSource(bytes: Uint8Array): ArrayBuffer {
   return new Uint8Array(bytes).buffer;
 }
 

webapp/src/lib/export-formats.ts

@@ -293,7 +293,9 @@ async function mapCipherPlain(cipher: Cipher, userEnc: Uint8Array, userMac: Uint
           )
         : [],
       fido2Credentials: Array.isArray(cipher.login.fido2Credentials)
-        ? await Promise.all(cipher.login.fido2Credentials.map((credential) => deepDecryptUnknown(credential, keyParts.enc, keyParts.mac)))
+        ? await Promise.all(
+            cipher.login.fido2Credentials.map((credential) => deepDecryptUnknown(credential, keyParts.enc, keyParts.mac))
+          )
         : [],
     };
   } else {

webapp/src/lib/i18n.ts

@@ -26,11 +26,16 @@ const messages: Record<Locale, Record<string, string>> = {
     txt_backup_export_success: "Backup exported",
     txt_backup_import_success_relogin: "Backup restored. Please sign in again.",
     txt_backup_restore_success_relogin: "Backup restored. Please sign in again.",
+    txt_backup_restore_completed_verified: "Backup file integrity verification passed.",
+    txt_backup_restore_completed_without_checksum: "Backup restored. No filename integrity marker was available for verification.",
+    txt_backup_remote_restore_completed_verified: "Remote backup integrity verification passed.",
+    txt_backup_remote_restore_completed_without_checksum: "Remote backup restored. No filename integrity marker was available for verification.",
     txt_backup_restore_skipped_summary: "{reason}. Skipped {attachments} attachment(s).",
     txt_backup_restore_skipped_reason_default: "Some files could not be restored",
     txt_backup_export_failed: "Backup export failed",
     txt_backup_import_failed: "Backup restore failed",
     txt_backup_restore_failed: "Backup restore failed",
+    txt_backup_integrity_check_failed: "Backup integrity verification failed",
     txt_backup_center_title: "Instance Backup",
     txt_backup_center_description: "Keep local exports for manual restore, and configure one daily remote backup target for unattended protection.",
     txt_backup_restore_note: "Restoring will overwrite the current instance if you choose the replace flow.",
@@ -99,6 +104,7 @@ const messages: Record<Locale, Record<string, string>> = {
     txt_backup_run_manual: "Run Manually",
     txt_backup_running_now: "Running...",
     txt_backup_remote_run_success: "Remote backup completed",
+    txt_backup_remote_run_success_verified: "Remote backup completed and integrity verification passed.",
     txt_backup_remote_run_failed: "Remote backup failed",
     txt_backup_remote_title: "Remote Backups",
     txt_backup_remote_note: "Browse the saved destination and choose a backup ZIP to download or restore.",
@@ -112,6 +118,68 @@ const messages: Record<Locale, Record<string, string>> = {
     txt_backup_remote_restore: "Restore",
     txt_backup_remote_restore_stage_prepare: "Preparing remote backup restore...",
     txt_backup_remote_restore_stage_replace: "Clearing current data and restoring remote backup...",
+    txt_backup_progress_kicker: "Backup Task",
+    txt_backup_progress_subject: "Current item: {name}",
+    txt_backup_restore_progress_kicker: "Restore Progress",
+    txt_backup_restore_progress_local_title: "Restoring local backup",
+    txt_backup_restore_progress_remote_title: "Restoring remote backup",
+    txt_backup_export_progress_title: "Exporting backup",
+    txt_backup_remote_run_progress_title: "Running remote backup",
+    txt_backup_restore_progress_file: "Current file: {name}",
+    txt_backup_restore_progress_elapsed: "{seconds}s elapsed",
+    txt_backup_archive_progress_collect_title: "Collecting vault data",
+    txt_backup_archive_progress_collect_detail: "The server is reading database tables and assembling the backup payload.",
+    txt_backup_archive_progress_collect_with_attachments_detail: "The server is reading database tables and collecting attachment metadata for the backup payload.",
+    txt_backup_archive_progress_package_title: "Packaging backup archive",
+    txt_backup_archive_progress_package_detail: "The server is generating the backup ZIP and computing its checksum prefix.",
+    txt_backup_archive_progress_package_with_attachments_detail: "The server is generating the backup ZIP metadata and computing its checksum prefix for the attachment-aware export.",
+    txt_backup_archive_progress_ready_title: "Preparing download",
+    txt_backup_archive_progress_ready_detail: "The backup archive is ready and is being returned to the browser.",
+    txt_backup_export_progress_fetch_attachments_title: "Downloading attachment files",
+    txt_backup_export_progress_fetch_attachments_detail: "The browser is fetching attachment objects and adding them into the export package.",
+    txt_backup_export_progress_rebuild_title: "Rebuilding export archive",
+    txt_backup_export_progress_rebuild_detail: "The browser is rebuilding the final ZIP and refreshing its checksum suffix.",
+    txt_backup_export_progress_save_title: "Saving export file",
+    txt_backup_export_progress_save_detail: "The browser is preparing the final backup file for download.",
+    txt_backup_export_progress_complete_title: "Export completed",
+    txt_backup_export_progress_complete_detail: "The backup export is ready.",
+    txt_backup_export_progress_failed_title: "Export failed",
+    txt_backup_export_progress_failed_detail: "The backup export could not be completed.",
+    txt_backup_remote_run_progress_prepare_title: "Preparing remote backup",
+    txt_backup_remote_run_progress_prepare_detail: "The server is loading the selected destination and preparing this backup run.",
+    txt_backup_remote_run_progress_sync_attachments_title: "Checking attachment index",
+    txt_backup_remote_run_progress_sync_attachments_detail: "The server is comparing attachment metadata so only missing attachment objects are uploaded.",
+    txt_backup_remote_run_progress_sync_attachments_skipped_detail: "This backup does not include attachments, so attachment synchronization is skipped.",
+    txt_backup_remote_run_progress_upload_title: "Uploading backup archive",
+    txt_backup_remote_run_progress_upload_detail: "The server is uploading the backup ZIP to the remote destination.",
+    txt_backup_remote_run_progress_verify_title: "Verifying uploaded archive",
+    txt_backup_remote_run_progress_verify_detail: "The server is downloading the uploaded ZIP back and verifying its checksum and size.",
+    txt_backup_remote_run_progress_cleanup_title: "Cleaning older backups",
+    txt_backup_remote_run_progress_cleanup_detail: "The server is pruning older backup files according to the retention policy.",
+    txt_backup_remote_run_progress_complete_title: "Remote backup completed",
+    txt_backup_remote_run_progress_complete_detail: "The remote backup has been uploaded and verified successfully.",
+    txt_backup_remote_run_progress_failed_title: "Remote backup failed",
+    txt_backup_remote_run_progress_failed_detail: "The remote backup could not be completed.",
+    txt_backup_restore_progress_local_upload_title: "Uploading backup archive",
+    txt_backup_restore_progress_local_upload_detail: "The selected ZIP is being sent to the server for processing.",
+    txt_backup_restore_progress_local_shadow_title: "Creating shadow workspace",
+    txt_backup_restore_progress_local_shadow_detail: "The server is preparing an isolated restore area so the current data remains untouched until validation passes.",
+    txt_backup_restore_progress_local_data_title: "Writing vault data",
+    txt_backup_restore_progress_local_data_detail: "The server is importing users, folders, vault items, and related metadata into shadow tables.",
+    txt_backup_restore_progress_local_files_title: "Restoring attachment files",
+    txt_backup_restore_progress_local_files_detail: "The server is writing attachment objects back to storage and removing any attachment rows that cannot be restored.",
+    txt_backup_restore_progress_local_finalize_title: "Validating and switching data",
+    txt_backup_restore_progress_local_finalize_detail: "The server is performing final validation and then swapping the verified restore data into the live tables.",
+    txt_backup_restore_progress_remote_fetch_title: "Reading remote backup",
+    txt_backup_restore_progress_remote_fetch_detail: "The server is downloading the selected backup package from the remote destination.",
+    txt_backup_restore_progress_remote_shadow_title: "Creating shadow workspace",
+    txt_backup_restore_progress_remote_shadow_detail: "The server is preparing an isolated restore area so the current data remains untouched until validation passes.",
+    txt_backup_restore_progress_remote_data_title: "Writing vault data",
+    txt_backup_restore_progress_remote_data_detail: "The server is importing users, folders, vault items, and related metadata into shadow tables.",
+    txt_backup_restore_progress_remote_files_title: "Restoring remote attachments",
+    txt_backup_restore_progress_remote_files_detail: "The server is fetching required attachment objects from remote storage and writing them back into local storage.",
+    txt_backup_restore_progress_remote_finalize_title: "Validating and switching data",
+    txt_backup_restore_progress_remote_finalize_detail: "The server is performing final validation and then switching the verified restore data into the live tables.",
     txt_backup_remote_loading: "Loading remote backups...",
     txt_backup_remote_cached_empty: "Click Refresh to load this destination.",
     txt_backup_remote_empty: "No backup files found in this folder.",
@@ -126,6 +194,11 @@ const messages: Record<Locale, Record<string, string>> = {
     txt_backup_remote_delete_confirm_message: "Delete backup file \"{name}\"? This cannot be undone.",
     txt_backup_remote_deleting: "Deleting...",
     txt_backup_remote_restore_failed: "Restoring remote backup failed",
+    txt_backup_restore_checksum_warning_title: "Backup Integrity Warning",
+    txt_backup_restore_checksum_warning_message: "The selected backup file \"{name}\" failed filename integrity verification. Expected prefix {expected}, actual prefix {actual}. The file may be incomplete or corrupted. Continuing may restore damaged data.",
+    txt_backup_remote_restore_checksum_warning_message: "The remote backup file \"{name}\" failed filename integrity verification. Expected prefix {expected}, actual prefix {actual}. The file may be corrupted during upload or storage. Continuing may restore damaged data and may cause serious data loss.",
+    txt_backup_restore_checksum_warning_message_fallback: "The selected backup file failed integrity verification. Continuing may restore damaged data.",
+    txt_backup_restore_checksum_warning_confirm: "Continue Restore",
     txt_backup_remote_restore_invalid_response: "Invalid remote backup restore response",
     txt_backup_remote_run_invalid_response: "Invalid remote backup run response",
     txt_backup_settings_invalid_response: "Invalid backup settings response",
@@ -197,9 +270,9 @@ const messages: Record<Locale, Record<string, string>> = {
     txt_backup_no_file_selected: "No backup file selected",
     txt_backup_selected_file_name: "Selected file: {name}",
     txt_backup_replace_confirm_title: "Replace Current Instance Data",
-    txt_backup_replace_confirm_message: "The current instance already contains data. Clear it and restore the selected backup?",
+    txt_backup_replace_confirm_message: "The current instance already contains data. Continue restoring and replace the current instance data with the selected backup after verification succeeds?",
-    txt_backup_clear_and_import: "Clear and Import",
+    txt_backup_clear_and_import: "Replace and Import",
-    txt_backup_clear_and_restore: "Clear and Restore",
+    txt_backup_clear_and_restore: "Replace and Restore",
     txt_access_count: "Access Count",
     txt_accessed_count_times: "Accessed {count} times",
     txt_actions: "Actions",
@@ -220,6 +293,7 @@ const messages: Record<Locale, Record<string, string>> = {
     txt_are_you_sure_you_want_to_delete_count_selected_items: "Are you sure you want to delete {count} selected items?",
     txt_are_you_sure_you_want_to_delete_count_selected_items_permanently: "Are you sure you want to permanently delete {count} selected items?",
     txt_are_you_sure_you_want_to_delete_this_item: "Are you sure you want to delete this item?",
+    txt_are_you_sure_you_want_to_delete_this_passkey: "Are you sure you want to delete this passkey?",
     txt_are_you_sure_you_want_to_log_out: "Are you sure you want to log out?",
     txt_authenticator_key: "Authenticator Key",
     txt_authorized_devices: "Authorized Devices",
@@ -279,6 +353,7 @@ const messages: Record<Locale, Record<string, string>> = {
     txt_delete_all_invite_codes_active_inactive: "Delete all invite codes (active/inactive)?",
     txt_delete_all_invites: "Delete all invites",
     txt_delete_item: "Delete Item",
+    txt_delete_passkey: "Delete Passkey",
     txt_delete_item_failed: "Delete item failed",
     txt_delete_permanently: "Delete Permanently",
     txt_archive: "Archive",
@@ -498,6 +573,9 @@ const messages: Record<Locale, Record<string, string>> = {
     txt_password_hint_not_set: "No password hint is available for this email.",
     txt_password_hint_load_failed: "Failed to load password hint",
     txt_password_hint_too_long: "Password hint must be 120 characters or fewer",
+    txt_passkey: "Passkey",
+    txt_passkeys: "Passkeys",
+    txt_passkey_created_at_value: "Created on {value}",
     txt_phone: "Phone",
     txt_please_input_email_and_password: "Please input email and password",
     txt_please_input_master_password: "Please input master password",
@@ -546,6 +624,8 @@ const messages: Record<Locale, Record<string, string>> = {
     txt_save_profile_failed: "Save profile failed",
     txt_search_sends: "Search sends...",
     txt_search_your_secure_vault: "Search your secure vault...",
+    txt_clear_search: "Clear search",
+    txt_clear_search_esc: "Clear search (Esc)",
     txt_sort: "Sort",
     txt_sort_last_edited: "Modified",
     txt_sort_created: "Created",
@@ -596,8 +676,6 @@ const messages: Record<Locale, Record<string, string>> = {
     txt_total_items_count: "{count} items",
     txt_totp_secret: "TOTP Secret",
     txt_totp_verify_failed: "TOTP verify failed",
-    txt_passkey: "Passkey",
-    txt_passkey_created_at_value: "Created at {value}",
     txt_attachments: "Attachments",
     txt_upload_attachments: "Upload attachments",
     txt_new_attachments: "New attachments",
@@ -641,6 +719,7 @@ const messages: Record<Locale, Record<string, string>> = {
     txt_vault_synced: "Vault synced",
     txt_verification_code: "Verification Code",
     txt_verify: "Verify",
+    txt_warning: "Warning",
     txt_view_recovery_code: "View Recovery Code",
     txt_web: "Web",
     txt_website: "Website",
@@ -674,11 +753,16 @@ const zhCNOverrides: Record<string, string> = {
   txt_backup_export_success: '备份已导出',
   txt_backup_import_success_relogin: '备份已还原，请重新登录',
   txt_backup_restore_success_relogin: '备份已还原，请重新登录',
+  txt_backup_restore_completed_verified: '备份文件完整性校验已通过。',
+  txt_backup_restore_completed_without_checksum: '备份已还原，但文件名中未提供可校验的完整性标记。',
+  txt_backup_remote_restore_completed_verified: '远程备份完整性校验已通过。',
+  txt_backup_remote_restore_completed_without_checksum: '远程备份已还原，但文件名中未提供可校验的完整性标记。',
   txt_backup_restore_skipped_summary: '{reason}，已跳过 {attachments} 个附件',
   txt_backup_restore_skipped_reason_default: '部分文件无法还原',
   txt_backup_export_failed: '备份导出失败',
   txt_backup_import_failed: '备份还原失败',
   txt_backup_restore_failed: '备份还原失败',
+  txt_backup_integrity_check_failed: '备份完整性校验失败',
   txt_backup_center_title: '实例备份',
   txt_backup_center_description: '把本地导出和远程自动备份放在一起管理，既方便手动恢复，也能每天自动留一份。',
   txt_backup_restore_note: '还原会覆盖当前实例；如果当前已有数据，系统会要求你确认“清空后还原”。',
@@ -747,6 +831,7 @@ const zhCNOverrides: Record<string, string> = {
   txt_backup_run_manual: '手动执行',
   txt_backup_running_now: '执行中...',
   txt_backup_remote_run_success: '远程备份已完成',
+  txt_backup_remote_run_success_verified: '远程备份已完成，且完整性校验已通过。',
   txt_backup_remote_run_failed: '远程备份失败',
   txt_backup_remote_title: '远端备份',
   txt_backup_remote_note: '浏览已保存的备份地点，选择某个备份 ZIP 后可以下载，也可以直接还原。',
@@ -760,6 +845,68 @@ const zhCNOverrides: Record<string, string> = {
   txt_backup_remote_restore: '还原',
   txt_backup_remote_restore_stage_prepare: '正在读取远端备份并检查可恢复内容...',
   txt_backup_remote_restore_stage_replace: '正在清空当前数据并还原远端备份，请稍候...',
+  txt_backup_progress_kicker: '备份任务',
+  txt_backup_progress_subject: '当前对象：{name}',
+  txt_backup_restore_progress_kicker: '还原进度',
+  txt_backup_restore_progress_local_title: '正在还原本地备份',
+  txt_backup_restore_progress_remote_title: '正在还原远端备份',
+  txt_backup_export_progress_title: '正在导出备份',
+  txt_backup_remote_run_progress_title: '正在执行远程备份',
+  txt_backup_restore_progress_file: '当前文件：{name}',
+  txt_backup_restore_progress_elapsed: '已耗时 {seconds} 秒',
+  txt_backup_archive_progress_collect_title: '正在收集密码库数据',
+  txt_backup_archive_progress_collect_detail: '服务器正在读取数据库表，并整理备份所需的数据内容。',
+  txt_backup_archive_progress_collect_with_attachments_detail: '服务器正在读取数据库表，并整理附件元数据与备份内容。',
+  txt_backup_archive_progress_package_title: '正在打包备份压缩包',
+  txt_backup_archive_progress_package_detail: '服务器正在生成备份 ZIP，并计算文件名校验前缀。',
+  txt_backup_archive_progress_package_with_attachments_detail: '服务器正在生成带附件信息的备份 ZIP 元数据，并计算文件名校验前缀。',
+  txt_backup_archive_progress_ready_title: '正在准备下载',
+  txt_backup_archive_progress_ready_detail: '备份压缩包已经生成，服务器正在把它返回给浏览器。',
+  txt_backup_export_progress_fetch_attachments_title: '正在下载附件文件',
+  txt_backup_export_progress_fetch_attachments_detail: '浏览器正在读取附件对象，并把它们补入导出备份包。',
+  txt_backup_export_progress_rebuild_title: '正在重建导出压缩包',
+  txt_backup_export_progress_rebuild_detail: '浏览器正在重建最终 ZIP，并刷新文件名里的校验后缀。',
+  txt_backup_export_progress_save_title: '正在保存导出文件',
+  txt_backup_export_progress_save_detail: '浏览器正在准备最终的备份文件下载。',
+  txt_backup_export_progress_complete_title: '备份导出已完成',
+  txt_backup_export_progress_complete_detail: '导出备份已经准备完成。',
+  txt_backup_export_progress_failed_title: '备份导出失败',
+  txt_backup_export_progress_failed_detail: '导出备份未能完成。',
+  txt_backup_remote_run_progress_prepare_title: '正在准备远程备份',
+  txt_backup_remote_run_progress_prepare_detail: '服务器正在读取当前备份目标，并准备执行这次远程备份。',
+  txt_backup_remote_run_progress_sync_attachments_title: '正在检查附件索引',
+  txt_backup_remote_run_progress_sync_attachments_detail: '服务器正在比对附件索引，只会上传缺失或不一致的附件对象。',
+  txt_backup_remote_run_progress_sync_attachments_skipped_detail: '当前备份未包含附件，因此跳过附件同步。',
+  txt_backup_remote_run_progress_upload_title: '正在上传备份压缩包',
+  txt_backup_remote_run_progress_upload_detail: '服务器正在把备份 ZIP 上传到远程备份目标。',
+  txt_backup_remote_run_progress_verify_title: '正在校验已上传压缩包',
+  txt_backup_remote_run_progress_verify_detail: '服务器正在回读刚上传的 ZIP，并校验它的哈希和大小。',
+  txt_backup_remote_run_progress_cleanup_title: '正在清理旧备份',
+  txt_backup_remote_run_progress_cleanup_detail: '服务器正在按保留策略清理旧备份文件。',
+  txt_backup_remote_run_progress_complete_title: '远程备份已完成',
+  txt_backup_remote_run_progress_complete_detail: '远程备份已上传完成，并通过完整性校验。',
+  txt_backup_remote_run_progress_failed_title: '远程备份失败',
+  txt_backup_remote_run_progress_failed_detail: '远程备份未能完成。',
+  txt_backup_restore_progress_local_upload_title: '正在上传备份包',
+  txt_backup_restore_progress_local_upload_detail: '已选 ZIP 正在发送到服务器，服务器收到后会开始执行还原。',
+  txt_backup_restore_progress_local_shadow_title: '正在创建影子恢复区',
+  txt_backup_restore_progress_local_shadow_detail: '服务器正在准备独立的影子数据区，只有校验通过后才会替换正式数据。',
+  txt_backup_restore_progress_local_data_title: '正在写入密码库数据',
+  txt_backup_restore_progress_local_data_detail: '服务器正在把用户、文件夹、密码条目和相关元数据写入影子表。',
+  txt_backup_restore_progress_local_files_title: '正在恢复附件文件',
+  txt_backup_restore_progress_local_files_detail: '服务器正在把附件对象写回存储，并剔除无法恢复的附件记录。',
+  txt_backup_restore_progress_local_finalize_title: '正在校验并完成切换',
+  txt_backup_restore_progress_local_finalize_detail: '服务器正在执行最终校验，校验通过后会把已验证的数据切换为正式数据。',
+  txt_backup_restore_progress_remote_fetch_title: '正在读取远端备份包',
+  txt_backup_restore_progress_remote_fetch_detail: '服务器正在从远端备份目标下载你选中的备份包。',
+  txt_backup_restore_progress_remote_shadow_title: '正在创建影子恢复区',
+  txt_backup_restore_progress_remote_shadow_detail: '服务器正在准备独立的影子数据区，只有校验通过后才会替换正式数据。',
+  txt_backup_restore_progress_remote_data_title: '正在写入密码库数据',
+  txt_backup_restore_progress_remote_data_detail: '服务器正在把用户、文件夹、密码条目和相关元数据写入影子表。',
+  txt_backup_restore_progress_remote_files_title: '正在恢复远端附件',
+  txt_backup_restore_progress_remote_files_detail: '服务器正在从远端存储读取所需附件，并写回到当前实例的附件存储。',
+  txt_backup_restore_progress_remote_finalize_title: '正在校验并完成切换',
+  txt_backup_restore_progress_remote_finalize_detail: '服务器正在执行最终校验，校验通过后会把已验证的数据切换为正式数据。',
   txt_backup_remote_loading: '正在读取远端备份...',
   txt_backup_remote_cached_empty: '点击“刷新”后读取',
   txt_backup_remote_empty: '这个目录下还没有备份文件',
@@ -774,6 +921,11 @@ const zhCNOverrides: Record<string, string> = {
   txt_backup_remote_delete_confirm_message: '删除备份文件“{name}”？此操作不可撤销。',
   txt_backup_remote_deleting: '删除中...',
   txt_backup_remote_restore_failed: '还原远端备份失败',
+  txt_backup_restore_checksum_warning_title: '备份完整性警告',
+  txt_backup_restore_checksum_warning_message: '所选备份文件“{name}”未通过文件名完整性校验。期望前缀为 {expected}，实际计算结果为 {actual}。该文件可能不完整或已经损坏。继续还原可能会导入受损数据。',
+  txt_backup_remote_restore_checksum_warning_message: '远程备份文件“{name}”未通过文件名完整性校验。期望前缀为 {expected}，实际计算结果为 {actual}。该文件可能在上传或存储过程中损坏。继续还原可能会导入受损数据，并可能造成严重后果。',
+  txt_backup_restore_checksum_warning_message_fallback: '所选备份文件未通过完整性校验。继续还原可能会导入受损数据。',
+  txt_backup_restore_checksum_warning_confirm: '继续还原',
   txt_backup_remote_restore_invalid_response: '远端备份还原响应无效',
   txt_backup_remote_run_invalid_response: '远端备份执行响应无效',
   txt_backup_settings_invalid_response: '备份设置响应无效',
@@ -845,9 +997,9 @@ const zhCNOverrides: Record<string, string> = {
   txt_backup_no_file_selected: '尚未选择备份文件',
   txt_backup_selected_file_name: '已选择文件：{name}',
   txt_backup_replace_confirm_title: '替换当前实例数据',
-  txt_backup_replace_confirm_message: '当前实例里已经有数据。要先清空当前数据库和文件，再还原所选备份吗？',
+  txt_backup_replace_confirm_message: '当前实例里已经有数据。确认后，系统会先完成校验与恢复准备，只有在恢复成功后才会用所选备份替换当前实例数据。是否继续？',
-  txt_backup_clear_and_import: '清空后导入',
+  txt_backup_clear_and_import: '替换并导入',
-  txt_backup_clear_and_restore: '清空后还原',
+  txt_backup_clear_and_restore: '替换并还原',
   txt_sign_out: '退出登录',
   txt_log_in: '登录',
   txt_logging_in: '正在登录...',
@@ -872,6 +1024,8 @@ const zhCNOverrides: Record<string, string> = {
   txt_loading_nodewarden: '正在加载 NodeWarden...',
   txt_search_sends: '搜索发送...',
   txt_search_your_secure_vault: '搜索你的密码库...',
+  txt_clear_search: '清空搜索',
+  txt_clear_search_esc: '清空搜索（Esc）',
   txt_refresh: '刷新',
   txt_sync: '同步',
   txt_sync_vault: '同步',
@@ -1012,6 +1166,7 @@ const zhCNOverrides: Record<string, string> = {
   txt_no_name: '（无名称）',
   txt_are_you_sure_you_want_to_log_out: '确认要退出登录吗？',
   txt_delete_item: '删除项目',
+  txt_delete_passkey: '删除通行密钥',
   txt_delete_selected_items: '删除所选项目',
   txt_move_selected_items: '移动所选项目',
   txt_create_folder: '创建文件夹',
@@ -1075,6 +1230,7 @@ const zhCNOverrides: Record<string, string> = {
   txt_are_you_sure_you_want_to_delete_count_selected_items: '确认删除所选的 {count} 个项目？',
   txt_are_you_sure_you_want_to_delete_count_selected_items_permanently: '确认永久删除所选的 {count} 个项目？',
   txt_are_you_sure_you_want_to_delete_this_item: '确认删除此项目？',
+  txt_are_you_sure_you_want_to_delete_this_passkey: '确认删除这个通行密钥？',
   txt_authenticator_key: '验证器密钥',
   txt_brand: '品牌',
   txt_bulk_delete_failed: '批量删除失败',
@@ -1175,6 +1331,9 @@ const zhCNOverrides: Record<string, string> = {
   txt_password_hint_not_set: '这个邮箱没有可显示的密码提示。',
   txt_password_hint_load_failed: '加载密码提示失败',
   txt_password_hint_too_long: '密码提示最多只能输入 120 个字符',
+  txt_passkey: '通行密钥',
+  txt_passkeys: '通行密钥',
+  txt_passkey_created_at_value: '创建于 {value}',
   txt_phone: '电话',
   txt_please_input_email_and_password: '请输入邮箱和密码',
   txt_please_input_master_password: '请输入主密码',
@@ -1239,6 +1398,7 @@ const zhCNOverrides: Record<string, string> = {
   txt_user_status_updated: '用户状态已更新',
   txt_vault_synced: '密码库已同步',
   txt_verify: '验证',
+  txt_warning: '警告',
   txt_web: '网页',
   txt_windows_desktop: 'Windows 桌面端',
   txt_jwt_warning_title: 'JWT_SECRET 配置警告',
@@ -1279,8 +1439,6 @@ zhCNOverrides.txt_lock = '锁定';
 zhCNOverrides.txt_menu = '菜单';
 zhCNOverrides.txt_settings = '设置';
 zhCNOverrides.txt_back = '返回';
-zhCNOverrides.txt_passkey = 'Passkey';
-zhCNOverrides.txt_passkey_created_at_value = '创建于 {value}';
 zhCNOverrides.txt_attachments = '附件';
 zhCNOverrides.txt_upload_attachments = '上传附件';
 zhCNOverrides.txt_new_attachments = '待上传附件';
@@ -1341,7 +1499,9 @@ messages.en.txt_delete_all_folders = 'Delete All Folders';
 messages.en.txt_delete_all_folders_message = 'Delete all folders? Items inside will move to No Folder.';
 messages.en.txt_folder_not_found = 'Folder not found';
 messages.en.txt_folder_deleted = 'Folder deleted';
+messages.en.txt_folder_updated = 'Folder updated';
 messages.en.txt_folders_deleted = 'Folders deleted';
+messages.en.txt_update_folder_failed = 'Update folder failed';
 messages.en.txt_delete_folder_failed = 'Delete folder failed';
 messages.en.txt_delete_all_folders_failed = 'Delete all folders failed';
 messages.en.txt_other = 'Other';
@@ -1423,7 +1583,9 @@ zhCNOverrides.txt_delete_all_folders = '删除全部文件夹';
 zhCNOverrides.txt_delete_all_folders_message = '确认删除全部文件夹吗？其中的项目将移至无文件夹。';
 zhCNOverrides.txt_folder_not_found = '文件夹不存在';
 zhCNOverrides.txt_folder_deleted = '文件夹已删除';
+zhCNOverrides.txt_folder_updated = '文件夹已重命名';
 zhCNOverrides.txt_folders_deleted = '文件夹已删除';
+zhCNOverrides.txt_update_folder_failed = '重命名文件夹失败';
 zhCNOverrides.txt_delete_folder_failed = '删除文件夹失败';
 zhCNOverrides.txt_delete_all_folders_failed = '删除全部文件夹失败';
 zhCNOverrides.txt_other = '其他';
@@ -1477,4 +1639,3 @@ export function setLocale(next: Locale): void {
     // ignore storage errors
   }
 }
-

webapp/src/lib/import-format-shared.ts

@@ -223,7 +223,7 @@ export function makeLoginCipher(): Record<string, unknown> {
     favorite: false,
     reprompt: 0,
     key: null,
-    login: { username: null, password: null, totp: null, fido2Credentials: null, uris: null },
+    login: { username: null, password: null, totp: null, uris: null },
     card: null,
     identity: null,
     secureNote: null,

webapp/src/lib/types.ts

@@ -1,9 +1,10 @@
 export type AppPhase = 'register' | 'login' | 'locked' | 'app';
 
 export interface SessionState {
-  accessToken: string;
+  accessToken?: string;
-  refreshToken: string;
+  refreshToken?: string;
   email: string;
+  authMode?: 'token' | 'web-cookie';
   symEncKey?: string;
   symMacKey?: string;
 }
@@ -28,13 +29,18 @@ export interface Folder {
 
 export interface CipherLoginUri {
   uri?: string | null;
+  uriChecksum?: string | null;
   match?: number | null;
+  response?: unknown | null;
   decUri?: string;
+  [key: string]: unknown;
 }
 
 export interface VaultDraftLoginUri {
   uri: string;
   match: number | null;
+  originalUri?: string;
+  extra?: Record<string, unknown>;
 }
 
 export interface CipherAttachment {
@@ -59,9 +65,14 @@ export interface CipherLogin {
   totp?: string | null;
   uris?: CipherLoginUri[] | null;
   fido2Credentials?: CipherLoginPasskey[] | null;
+  autofillOnPageLoad?: boolean | null;
+  uri?: string | null;
+  passwordRevisionDate?: string | null;
+  response?: unknown | null;
   decUsername?: string;
   decPassword?: string;
   decTotp?: string;
+  [key: string]: unknown;
 }
 
 export interface CipherCard {
@@ -272,7 +283,8 @@ export interface WebBootstrapResponse {
 
 export interface TokenSuccess {
   access_token: string;
-  refresh_token: string;
+  refresh_token?: string;
+  web_session?: boolean;
   expires_in?: number;
   token_type?: string;
   TwoFactorToken?: string;
@@ -290,6 +302,10 @@ export interface TokenSuccess {
   unofficialServer?: boolean;
   UserDecryptionOptions?: unknown;
   userDecryptionOptions?: unknown;
+  VaultKeys?: {
+    symEncKey?: string;
+    symMacKey?: string;
+  };
 }
 
 export interface TokenError {

webapp/src/styles.css

@@ -80,6 +80,11 @@ body {
     color var(--dur-medium) var(--ease-smooth);
 }
 
+body.dialog-open {
+  overflow: hidden;
+  overscroll-behavior: contain;
+}
+
 body::before {
   content: none;
 }
@@ -1021,12 +1026,15 @@ input[type='file'].input::file-selector-button:hover {
 
 .search-input {
   width: 100%;
-  height: 40px;
+  height: 48px;
-  border: 1px solid var(--line);
+  border: 1px solid rgba(74, 103, 150, 0.42);
-  border-radius: 12px;
+  border-radius: 14px;
-  padding: 0 12px;
+  padding: 10px 14px;
+  font-size: 16px;
+  outline: none;
   color: var(--text);
   background: var(--panel);
+  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
   transition:
     border-color var(--dur-fast) var(--ease-smooth),
     box-shadow var(--dur-fast) var(--ease-out-soft),
@@ -1034,13 +1042,52 @@ input[type='file'].input::file-selector-button:hover {
     transform var(--dur-fast) var(--ease-out-soft);
 }
 
+.search-input-wrap {
+  position: relative;
+  flex: 1 1 auto;
+  min-width: 0;
+}
+
 .search-input:focus {
-  border-color: rgba(43, 102, 217, 0.28);
+  border-color: rgba(43, 102, 217, 0.6);
-  background: #fbfdff;
+  background-color: #fbfdff;
-  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.08), 0 8px 18px rgba(37, 99, 235, 0.06);
+  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.11), 0 10px 20px rgba(37, 99, 235, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.95);
   transform: translateY(-1px);
 }
 
+.search-input-wrap .search-input {
+  padding-right: 42px;
+}
+
+.search-clear-btn {
+  position: absolute;
+  top: 50%;
+  right: 9px;
+  width: 22px;
+  height: 22px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  border: none;
+  border-radius: 999px;
+  background: rgba(148, 163, 184, 0.18);
+  color: var(--muted);
+  cursor: pointer;
+  transform: translateY(-50%);
+  transition: background-color var(--dur-fast) var(--ease-out-soft), color var(--dur-fast) var(--ease-out-soft), transform var(--dur-fast) var(--ease-out-soft);
+}
+
+.search-clear-btn:hover {
+  background: rgba(59, 130, 246, 0.18);
+  color: var(--brand);
+  transform: translateY(-50%) scale(1.04);
+}
+
+.search-clear-btn:focus-visible {
+  outline: none;
+  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.16);
+}
+
 .tree-btn {
   width: 100%;
   min-width: 0;
@@ -1117,6 +1164,11 @@ input[type='file'].input::file-selector-button:hover {
   transform: scale(1.06);
 }
 
+.folder-edit-btn:hover {
+  color: #1d4ed8;
+  background: #dbeafe;
+}
+
 .list-col {
   display: flex;
   flex-direction: column;
@@ -1151,10 +1203,13 @@ input[type='file'].input::file-selector-button:hover {
   margin-bottom: 8px;
 }
 
-.list-head .search-input {
+.list-head .search-input-wrap {
   flex: 1 1 auto;
   min-width: 0;
-  height: 36px; 
+}
+
+.list-head .search-input {
+  height: 42px;
 }
 
 .list-head .btn {
@@ -2619,6 +2674,8 @@ input[type='file'].input::file-selector-button:hover {
 .totp-qr img {
   width: 180px;
   height: 180px;
+  background: #fff;
+  border-radius: 8px;
 }
 
 .section-head {
@@ -2884,6 +2941,148 @@ input[type='file'].input::file-selector-button:hover {
   font-weight: 700;
 }
 
+.restore-progress-card {
+  margin: 8px 0 12px;
+  padding: 14px 16px;
+  border-radius: 12px;
+  border: 1px solid #d7e2f1;
+  background: #ffffff;
+  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.10);
+}
+
+.restore-progress-overlay {
+  position: fixed;
+  inset: 0;
+  z-index: 1250;
+  display: grid;
+  place-items: center;
+  padding: 20px;
+  background: rgba(15, 23, 42, 0.30);
+}
+
+.restore-progress-modal {
+  width: min(520px, 100%);
+  margin: 0;
+}
+
+.restore-progress-head {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 12px;
+  margin-bottom: 12px;
+}
+
+.restore-progress-kicker {
+  font-size: 12px;
+  font-weight: 600;
+  letter-spacing: 0.02em;
+  color: #64748b;
+}
+
+.restore-progress-title {
+  margin: 4px 0 2px;
+  font-size: 20px;
+  line-height: 1.2;
+}
+
+.restore-progress-subtitle {
+  margin: 0;
+  color: #6b7280;
+  font-size: 13px;
+}
+
+.restore-progress-elapsed {
+  flex: 0 0 auto;
+  min-width: 88px;
+  padding: 6px 8px;
+  border-radius: 10px;
+  background: #f8fbff;
+  border: 1px solid #d7e2f1;
+  color: #475569;
+  font-weight: 600;
+  font-size: 13px;
+  text-align: center;
+}
+
+.restore-progress-meter {
+  height: 6px;
+  border-radius: 999px;
+  background: #e7eef8;
+  overflow: hidden;
+}
+
+.restore-progress-meter-bar {
+  display: block;
+  height: 100%;
+  border-radius: inherit;
+  background: #3a71d8;
+  transition: width 280ms ease;
+}
+
+.restore-progress-current {
+  margin-top: 12px;
+  padding: 10px 12px;
+  border-radius: 10px;
+  background: #f8fbff;
+  border: 1px solid #d7e2f1;
+}
+
+.restore-progress-current strong {
+  display: block;
+  color: #0f172a;
+  font-size: 14px;
+}
+
+.restore-progress-current p {
+  margin: 4px 0 0;
+  color: #64748b;
+  line-height: 1.45;
+  font-size: 13px;
+}
+
+.restore-progress-list {
+  list-style: none;
+  margin: 12px 0 0;
+  padding: 0;
+  display: grid;
+  gap: 6px;
+}
+
+.restore-progress-item {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  min-height: 30px;
+  color: #64748b;
+  font-weight: 500;
+  font-size: 13px;
+}
+
+.restore-progress-item.active {
+  color: #1d4ed8;
+}
+
+.restore-progress-item.done {
+  color: #475569;
+}
+
+.restore-progress-dot {
+  width: 8px;
+  height: 8px;
+  border-radius: 999px;
+  background: #cbd5e1;
+  flex: 0 0 auto;
+}
+
+.restore-progress-item.active .restore-progress-dot {
+  background: #1d4ed8;
+}
+
+.restore-progress-item.done .restore-progress-dot {
+  background: #94a3b8;
+}
+
 .kv-line strong {
   overflow-wrap: anywhere;
 }
@@ -2977,6 +3176,8 @@ input[type='file'].input::file-selector-button:hover {
 .dialog-mask {
   position: fixed;
   inset: 0;
+  width: 100vw;
+  height: 100dvh;
   background: rgba(15, 23, 42, 0.5);
   display: grid;
   place-items: center;
@@ -2984,6 +3185,8 @@ input[type='file'].input::file-selector-button:hover {
   padding: 20px;
   opacity: 0;
   animation: fade-in var(--dur-medium) var(--ease-smooth) both;
+  backdrop-filter: blur(6px);
+  -webkit-backdrop-filter: blur(6px);
 }
 
 .dialog-card {
@@ -2998,6 +3201,54 @@ input[type='file'].input::file-selector-button:hover {
   animation: dialog-in 240ms var(--ease-out-strong) both;
 }
 
+.dialog-mask.warning {
+  background:
+    radial-gradient(circle at top, rgba(255, 237, 213, 0.32), transparent 34%),
+    linear-gradient(180deg, rgba(127, 29, 29, 0.36), rgba(15, 23, 42, 0.72));
+  backdrop-filter: blur(10px);
+  -webkit-backdrop-filter: blur(10px);
+}
+
+.dialog-card.warning {
+  width: min(520px, 100%);
+  border: 1px solid rgba(220, 38, 38, 0.22);
+  background:
+    linear-gradient(180deg, rgba(255, 246, 246, 0.98), rgba(255, 255, 255, 0.99));
+  box-shadow:
+    0 36px 90px rgba(69, 10, 10, 0.28),
+    0 0 0 1px rgba(255, 255, 255, 0.7) inset;
+}
+
+.dialog-warning-head {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  gap: 12px;
+  margin-bottom: 8px;
+}
+
+.dialog-warning-badge {
+  width: 48px;
+  height: 48px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  border-radius: 16px;
+  background: linear-gradient(180deg, #fff1f2, #ffe4e6);
+  color: #dc2626;
+  box-shadow:
+    0 12px 30px rgba(220, 38, 38, 0.18),
+    0 0 0 1px rgba(220, 38, 38, 0.08) inset;
+}
+
+.dialog-warning-kicker {
+  font-size: 12px;
+  font-weight: 800;
+  letter-spacing: 0.16em;
+  text-transform: uppercase;
+  color: #b91c1c;
+}
+
 .dialog-mask.closing {
   animation: fade-out 220ms var(--ease-smooth) both;
 }
@@ -3025,6 +3276,22 @@ input[type='file'].input::file-selector-button:hover {
   margin-bottom: 10px;
 }
 
+.dialog-card.warning .dialog-title {
+  color: #7f1d1d;
+  margin-bottom: 10px;
+}
+
+.dialog-message.warning {
+  margin-bottom: 16px;
+  padding: 14px 16px;
+  border-radius: 16px;
+  border: 1px solid rgba(220, 38, 38, 0.16);
+  background: linear-gradient(180deg, rgba(255, 241, 242, 0.94), rgba(255, 247, 237, 0.9));
+  color: #7a2832;
+  line-height: 1.65;
+  box-shadow: 0 10px 28px rgba(248, 113, 113, 0.08) inset;
+}
+
 .dialog-btn {
   width: 100%;
   height: 50px;
@@ -3733,6 +4000,11 @@ input[type='file'].input::file-selector-button:hover {
     white-space: nowrap;
   }
 
+  .list-head .search-input-wrap {
+    width: 100%;
+    min-width: 0;
+  }
+
   .list-head .search-input {
     width: 100%;
     min-width: 0;
@@ -4082,6 +4354,14 @@ input[type='file'].input::file-selector-button:hover {
     padding: 18px 16px calc(18px + env(safe-area-inset-bottom));
   }
 
+  .dialog-card.warning {
+    max-width: 520px;
+  }
+
+  .dialog-warning-strip {
+    margin: -18px -16px 16px;
+  }
+
   .dialog-title {
     font-size: 24px;
   }
@@ -4202,6 +4482,40 @@ input[type='file'].input::file-selector-button:hover {
   color: var(--text);
 }
 
+:root[data-theme='dark'] .dialog-card.warning {
+  border-color: rgba(248, 113, 113, 0.36);
+  background: linear-gradient(180deg, rgba(39, 16, 16, 0.98), rgba(27, 12, 12, 0.98));
+  box-shadow:
+    0 36px 90px rgba(5, 5, 5, 0.56),
+    0 0 0 1px rgba(248, 113, 113, 0.12) inset;
+}
+
+:root[data-theme='dark'] .dialog-mask.warning {
+  background:
+    radial-gradient(circle at top, rgba(127, 29, 29, 0.28), transparent 34%),
+    linear-gradient(180deg, rgba(20, 12, 12, 0.64), rgba(2, 6, 23, 0.82));
+}
+
+:root[data-theme='dark'] .dialog-warning-badge {
+  background: linear-gradient(180deg, rgba(127, 29, 29, 0.8), rgba(69, 10, 10, 0.86));
+  color: #fda4af;
+  box-shadow:
+    0 12px 30px rgba(0, 0, 0, 0.32),
+    0 0 0 1px rgba(248, 113, 113, 0.14) inset;
+}
+
+:root[data-theme='dark'] .dialog-warning-kicker,
+:root[data-theme='dark'] .dialog-card.warning .dialog-title {
+  color: #fecaca;
+}
+
+:root[data-theme='dark'] .dialog-message.warning {
+  border-color: rgba(248, 113, 113, 0.18);
+  background: linear-gradient(180deg, rgba(69, 10, 10, 0.54), rgba(67, 20, 7, 0.46));
+  color: #fecdd3;
+  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.18) inset;
+}
+
 :root[data-theme='dark'] .app-side,
 :root[data-theme='dark'] .sidebar,
 :root[data-theme='dark'] .mobile-sidebar-sheet .sidebar-block {
@@ -4461,7 +4775,6 @@ input[type='file'].input::file-selector-button:hover {
 :root[data-theme='dark'] .backup-browser-list,
 :root[data-theme='dark'] .backup-schedule-current,
 :root[data-theme='dark'] .backup-status-card,
-:root[data-theme='dark'] .totp-qr,
 :root[data-theme='dark'] .create-menu,
 :root[data-theme='dark'] .create-menu-item,
 :root[data-theme='dark'] .sort-menu,
@@ -4619,6 +4932,11 @@ input[type='file'].input::file-selector-button:hover {
   color: #9be2bd;
 }
 
+:root[data-theme='dark'] .totp-qr {
+  background: #ffffff;
+  border-color: rgba(15, 23, 42, 0.12);
+}
+
 :root[data-theme='dark'] .totp-qr svg,
 :root[data-theme='dark'] .totp-qr img {
   background: #ffffff;

webapp/tsconfig.json

@@ -6,9 +6,8 @@
     "lib": ["ES2022", "DOM", "DOM.Iterable"],
     "jsx": "react-jsx",
     "jsxImportSource": "preact",
-    "baseUrl": ".",
     "paths": {
-      "@/*": ["src/*"],
+      "@/*": ["./src/*"],
       "@shared/*": ["../shared/*"]
     },
     "strict": true,