Merge branch 'main' of https://github.com/shuaiplus/nodewarden

- Merge device management and authorized devices sections into a single card in SecurityDevicesPage
- Remove PendingAuthRequestsPanel from SettingsPage and its related props
- Clean up unused auth request prop drilling in AppMainRoutes

Co-Authored-By: Claude <noreply@anthropic.com>

migrations/0001_init.sql

@@ -228,6 +228,16 @@ CREATE TABLE IF NOT EXISTS trusted_two_factor_device_tokens (
 CREATE INDEX IF NOT EXISTS idx_trusted_two_factor_device_tokens_user_device
   ON trusted_two_factor_device_tokens(user_id, device_identifier);
 
+CREATE TABLE IF NOT EXISTS totp_login_replays (
+  user_id TEXT NOT NULL,
+  time_counter INTEGER NOT NULL,
+  consumed_at INTEGER NOT NULL,
+  PRIMARY KEY (user_id, time_counter),
+  FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
+);
+CREATE INDEX IF NOT EXISTS idx_totp_login_replays_consumed_at
+  ON totp_login_replays(consumed_at);
+
 CREATE TABLE IF NOT EXISTS webauthn_credentials (
   id TEXT PRIMARY KEY,
   user_id TEXT NOT NULL,

package.json

@@ -1,6 +1,6 @@
 {
   "name": "nodewarden",
-  "version": "1.7.0",
+  "version": "1.7.1",
   "description": "Minimal Bitwarden-compatible server running on Cloudflare Workers",
   "author": "shuaiplus",
   "license": "LGPL-3.0",
@@ -42,6 +42,11 @@
       }
     }
   },
+  "overrides": {
+    "undici": ">=7.28.0",
+    "@babel/core": ">=7.29.6",
+    "esbuild": ">=0.28.1"
+  },
   "devDependencies": {
     "@cloudflare/workers-types": "^4.20260131.0",
     "@preact/preset-vite": "^2.10.3",

shared/app-version.ts

@@ -1 +1 @@
-export const APP_VERSION = '1.7.0';
+export const APP_VERSION = '1.7.1';

shared/backup-schema.ts

@@ -9,7 +9,8 @@
 export const BACKUP_DEFAULT_TIMEZONE = 'UTC';
 export const BACKUP_DEFAULT_RETENTION_COUNT = 30;
 export const BACKUP_DEFAULT_S3_REGION = 'auto';
-export const BACKUP_DEFAULT_REMOTE_PATH = 'nodewarden';
+export const BACKUP_DEFAULT_S3_ROOT_PATH = '';
+export const BACKUP_DEFAULT_WEBDAV_REMOTE_PATH = 'nodewarden';
 export const BACKUP_DEFAULT_INTERVAL_HOURS = 24;
 export const BACKUP_DEFAULT_START_TIME = '03:00';
 
@@ -109,14 +110,14 @@ export function createDefaultBackupDestinationConfig(type: BackupDestinationType
       region: BACKUP_DEFAULT_S3_REGION,
       accessKeyId: '',
       secretAccessKey: '',
-      rootPath: BACKUP_DEFAULT_REMOTE_PATH,
+      rootPath: BACKUP_DEFAULT_S3_ROOT_PATH,
     };
   }
   return {
     baseUrl: '',
     username: '',
     password: '',
-    remotePath: BACKUP_DEFAULT_REMOTE_PATH,
+    remotePath: BACKUP_DEFAULT_WEBDAV_REMOTE_PATH,
   };
 }
 

src/durable/backup-transfer-runner.ts

@@ -209,6 +209,7 @@ export class BackupTransferRunner {
     }
 
     let completed = 0;
+    const failures: Array<{ destinationId: string; error: string }> = [];
     try {
       await this.touchJob(token);
       const storage = new StorageService(this.env.DB);
@@ -230,6 +231,7 @@ export class BackupTransferRunner {
         scanStartMs = now.getTime();
         for (const destination of dueDestinations) {
           await this.touchJob(token);
+          try {
             await executeConfiguredBackup(
               this.env,
               storage,
@@ -239,12 +241,20 @@ export class BackupTransferRunner {
               () => this.touchJob(token)
             );
             completed += 1;
+          } catch (error) {
+            failures.push({
+              destinationId: destination.id,
+              error: error instanceof Error ? error.message : 'Scheduled backup failed',
+            });
+          }
         }
       }
 
       return new Response(JSON.stringify({
         ok: true,
         completed,
+        failed: failures.length,
+        failures,
       }), {
         status: 200,
         headers: {
@@ -318,7 +328,8 @@ export class BackupTransferRunner {
         replaceExisting,
         !checksumOk,
         body.auditMetadata || null,
-        targetDeviceIdentifier
+        targetDeviceIdentifier,
+        () => this.touchJob(token)
       );
 
       return new Response(JSON.stringify(result.result), {

src/handlers/accounts.ts

@@ -353,20 +353,31 @@ export async function handleRegister(request: Request, env: Env): Promise<Respon
     return errorResponse('Invite code is required', 403);
   }
 
+  const inviteMarked = await storage.markInviteUsed(inviteCode, user.id);
+  if (!inviteMarked) {
+    return errorResponse('Invite code is invalid or expired', 403);
+  }
+
   try {
     await storage.createUser(user);
   } catch (error) {
+    await storage.revertInviteUsed(inviteCode, user.id);
     const msg = error instanceof Error ? error.message.toLowerCase() : String(error).toLowerCase();
     if (msg.includes('unique') || msg.includes('constraint')) {
       return errorResponse('Email already registered', 409);
     }
+    console.error('Registration failed after invite reservation:', error);
     throw error;
   }
 
-  const inviteMarked = await storage.markInviteUsed(inviteCode, user.id);
+  try {
-  if (!inviteMarked) {
+    const assigned = await storage.assignInviteUsedBy(inviteCode, user.id);
-    await storage.deleteUserById(user.id);
+    if (!assigned) {
-    return errorResponse('Invite code is invalid or expired', 403);
+      console.warn('Invite used_by was not assigned after registration', { inviteCode, userId: user.id });
+    }
+  } catch (error) {
+    // The invite is already consumed. Do not reactivate it after the user row exists.
+    console.error('Invite used_by assignment failed after registration:', error);
   }
 
   await writeAuditEvent(storage, {
@@ -891,7 +902,7 @@ export async function handleDisableTwoFactorProvider(request: Request, env: Env,
 }
 
 // PUT /api/accounts/totp
-// enable: { enabled: true, secret: "...", token: "123456" }
+// enable: { enabled: true, secret: "...", token: "123456", masterPasswordHash?: "...", userVerificationToken?: "..." }
 // disable: { enabled: false, masterPasswordHash: "..." }
 export async function handleSetTotpStatus(request: Request, env: Env, userId: string): Promise<Response> {
   const storage = new StorageService(env.DB);
@@ -899,7 +910,13 @@ export async function handleSetTotpStatus(request: Request, env: Env, userId: st
   const user = await storage.getUserById(userId);
   if (!user) return errorResponse('User not found', 404);
 
-  let body: { enabled?: boolean; secret?: string; token?: string; masterPasswordHash?: string };
+  let body: {
+    enabled?: boolean;
+    secret?: string;
+    token?: string;
+    masterPasswordHash?: string;
+    userVerificationToken?: string;
+  };
   try {
     body = await request.json();
   } catch {
@@ -908,12 +925,24 @@ export async function handleSetTotpStatus(request: Request, env: Env, userId: st
 
   if (body.enabled === true) {
     const normalizedSecret = normalizeTotpSecret(body.secret || '');
+    const masterPasswordHash = readBodyString(body, ['masterPasswordHash', 'MasterPasswordHash']);
+    const userVerificationToken = readBodyString(body, ['userVerificationToken', 'UserVerificationToken']);
     if (!isTotpEnabled(normalizedSecret)) {
       return errorResponse('Invalid TOTP secret', 400);
     }
     if (!body.token) {
       return errorResponse('TOTP token is required', 400);
     }
+    let verifiedUser = false;
+    if (userVerificationToken) {
+      verifiedUser = await verifyTotpUserVerificationToken(env, user, normalizedSecret, userVerificationToken);
+    }
+    if (!verifiedUser && masterPasswordHash) {
+      verifiedUser = await auth.verifyPassword(masterPasswordHash, user.masterPasswordHash, user.email);
+    }
+    if (!verifiedUser) {
+      return errorResponse('User verification failed.', 400);
+    }
     const verified = await verifyTotpToken(normalizedSecret, body.token);
     if (!verified) {
       return errorResponse('Invalid TOTP token', 400);

src/handlers/attachments.ts

@@ -4,6 +4,7 @@ import { StorageService } from '../services/storage';
 import { jsonResponse, errorResponse } from '../utils/response';
 import { buildDirectUploadUrl, getSafeJwtSecret, parseDirectUploadPayload } from '../utils/direct-upload';
 import { generateUUID } from '../utils/uuid';
+import { sanitizeDownloadContentType } from '../utils/content-type';
 import {
   createAttachmentUploadToken,
   createFileDownloadToken,
@@ -449,7 +450,7 @@ export async function handlePublicDownloadAttachment(
 
   return new Response(object.body, {
     headers: {
-      'Content-Type': object.contentType || 'application/octet-stream',
+      'Content-Type': sanitizeDownloadContentType(object.contentType),
       'Content-Length': String(object.size),
       'Content-Disposition': contentDispositionAttachment(attachment.fileName),
       'Cache-Control': 'private, no-cache',

src/handlers/auth-requests.ts

@@ -14,6 +14,19 @@ function normalizeText(value: unknown, maxLength: number): string {
   return String(value ?? '').trim().slice(0, maxLength);
 }
 
+function isSerializedEncString(value: unknown): value is string {
+  const text = String(value || '').trim();
+  if (!text) return false;
+  const parts = text.split('.');
+  if (parts.length !== 2) return false;
+  const type = Number(parts[0]);
+  const bodyParts = parts[1].split('|');
+  if (type === 2) return bodyParts.length === 3 && bodyParts.every(Boolean);
+  if (type === 3 || type === 4) return bodyParts.length === 1 && !!bodyParts[0];
+  if (type === 5 || type === 6) return bodyParts.length === 2 && bodyParts.every(Boolean);
+  return false;
+}
+
 function getClientIp(request: Request): string | null {
   return (
     request.headers.get('CF-Connecting-IP') ||
@@ -251,6 +264,9 @@ export async function handleUpdateAuthRequest(request: Request, env: Env, userId
   if (approved && !key) {
     return errorResponse('Encrypted key is required to approve the request.', 400);
   }
+  if (approved && !isSerializedEncString(key)) {
+    return errorResponse('Encrypted key is not a valid encrypted string.', 400);
+  }
 
   const updated = await storage.updateAuthRequestResponse(id, userId, {
     approved,

src/handlers/backup.ts

@@ -21,6 +21,7 @@ import {
   repairBackupSettings,
   requireBackupDestination,
   saveBackupSettings,
+  updateBackupDestinationRuntime,
 } from '../services/backup-config';
 import {
   type BackupImportExecutionResult,
@@ -40,15 +41,51 @@ import {
   uploadBackupArchive,
 } from '../services/backup-uploader';
 import { StorageService } from '../services/storage';
+import { AuthService } from '../services/auth';
 import { auditRequestMetadata, writeAuditEvent } from '../services/audit-events';
 import { getBlobObject } from '../services/blob-store';
 import { notifyUserBackupProgress, notifyUserBackupRestoreProgress } from '../durable/notifications-hub';
+import { verifyPasskeyUserVerificationToken } from '../utils/user-verification-token';
 import { unzipSync } from 'fflate';
 
 function isAdmin(user: User): boolean {
   return user.role === 'admin' && user.status === 'active';
 }
 
+async function requireBackupUserVerification(actorUser: User, masterPasswordHash: string, env: Env): Promise<Response | null> {
+  const normalized = String(masterPasswordHash || '').trim();
+  if (!normalized) {
+    return errorResponse('masterPasswordHash is required', 400);
+  }
+  const auth = new AuthService(env);
+  const valid = await auth.verifyPassword(normalized, actorUser.masterPasswordHash, actorUser.email);
+  if (!valid) {
+    return errorResponse('Invalid password', 400);
+  }
+  return null;
+}
+
+async function requireBackupRepairVerification(
+  actorUser: User,
+  body: { masterPasswordHash?: string; userVerificationToken?: string },
+  env: Env
+): Promise<Response | null> {
+  const masterPasswordHash = String(body.masterPasswordHash || '').trim();
+  if (masterPasswordHash) {
+    return requireBackupUserVerification(actorUser, masterPasswordHash, env);
+  }
+
+  const userVerificationToken = String(body.userVerificationToken || '').trim();
+  if (!userVerificationToken) {
+    return errorResponse('masterPasswordHash or userVerificationToken is required', 400);
+  }
+  const valid = await verifyPasskeyUserVerificationToken(env, userVerificationToken, actorUser.id, 'backup.settings.repair');
+  if (!valid) {
+    return errorResponse('Invalid user verification token', 400);
+  }
+  return null;
+}
+
 async function writeAuditLog(
   storage: StorageService,
   actorUserId: string | null,
@@ -224,6 +261,30 @@ async function uploadRemoteAttachmentChunk(
   }
 }
 
+async function verifyUploadedBackupArchive(
+  session: RemoteBackupTransferSession,
+  archive: BackupArchiveBundle
+): Promise<'metadata' | 'download'> {
+  try {
+    const stat = await session.stat(archive.fileName);
+    if (stat?.size === archive.bytes.byteLength) {
+      return 'metadata';
+    }
+  } catch {
+    // Fall through to a full read-back verification when lightweight metadata is unavailable.
+  }
+
+  const remoteFile = await session.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');
+  }
+  return 'download';
+}
+
 export async function executeConfiguredBackup(
   env: Env,
   storage: StorageService,
@@ -251,12 +312,14 @@ export async function executeConfiguredBackup(
   const destination = requireBackupDestination(currentSettings, destinationId);
 
   const now = new Date();
-  destination.runtime.lastAttemptAt = now.toISOString();
-  destination.runtime.lastAttemptLocalDate = getBackupLocalDateKey(now, destination.schedule.timezone);
-  destination.runtime.lastErrorAt = null;
-  destination.runtime.lastErrorMessage = null;
   await touchLease();
-  await saveBackupSettings(storage, env, currentSettings);
+  destination.runtime = await updateBackupDestinationRuntime(storage, destination.id, (runtime) => ({
+    ...runtime,
+    lastAttemptAt: now.toISOString(),
+    lastAttemptLocalDate: getBackupLocalDateKey(now, destination.schedule.timezone),
+    lastErrorAt: null,
+    lastErrorMessage: null,
+  }));
 
   try {
     await touchLease();
@@ -318,6 +381,7 @@ export async function executeConfiguredBackup(
       }
     }
     let upload: Awaited<ReturnType<typeof uploadBackupArchive>> | null = null;
+    let uploadVerificationMethod: 'metadata' | 'download' | null = null;
     for (let attempt = 1; attempt <= maxArchiveUploadAttempts; attempt++) {
       await touchLease();
       await progress?.({
@@ -337,14 +401,7 @@ export async function executeConfiguredBackup(
           stageTitle: 'txt_backup_remote_run_progress_verify_title',
           stageDetail: 'txt_backup_remote_run_progress_verify_detail',
         });
-        const remoteFile = await remoteSession.download(archive.fileName);
+        uploadVerificationMethod = await verifyUploadedBackupArchive(remoteSession, archive);
-        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);
@@ -373,14 +430,16 @@ export async function executeConfiguredBackup(
       pruneErrorMessage = error instanceof Error ? error.message : 'Old backup cleanup failed';
     }
 
-    destination.runtime.lastSuccessAt = new Date().toISOString();
-    destination.runtime.lastErrorAt = null;
-    destination.runtime.lastErrorMessage = null;
-    destination.runtime.lastUploadedFileName = archive.fileName;
-    destination.runtime.lastUploadedSizeBytes = archive.bytes.byteLength;
-    destination.runtime.lastUploadedDestination = upload.remotePath;
     await touchLease();
-    await saveBackupSettings(storage, env, currentSettings);
+    destination.runtime = await updateBackupDestinationRuntime(storage, destination.id, (runtime) => ({
+      ...runtime,
+      lastSuccessAt: new Date().toISOString(),
+      lastErrorAt: null,
+      lastErrorMessage: null,
+      lastUploadedFileName: archive.fileName,
+      lastUploadedSizeBytes: archive.bytes.byteLength,
+      lastUploadedDestination: upload.remotePath,
+    }));
 
     await touchLease();
     await writeAuditLog(storage, actorUserId, `admin.backup.remote.${trigger}`, 'backup', null, {
@@ -390,6 +449,7 @@ export async function executeConfiguredBackup(
       fileName: archive.fileName,
       fileBytes: archive.bytes.byteLength,
       uploadVerificationAttempts: maxArchiveUploadAttempts,
+      uploadVerificationMethod,
       prunedFileCount,
       pruneError: pruneErrorMessage,
       ...(auditMetadata || {}),
@@ -412,15 +472,18 @@ export async function executeConfiguredBackup(
       provider: upload.provider,
     };
   } catch (error) {
-    destination.runtime.lastErrorAt = new Date().toISOString();
+    const errorMessage = error instanceof Error ? error.message : 'Backup upload failed';
-    destination.runtime.lastErrorMessage = error instanceof Error ? error.message : 'Backup upload failed';
     await touchLease();
-    await saveBackupSettings(storage, env, currentSettings);
+    destination.runtime = await updateBackupDestinationRuntime(storage, destination.id, (runtime) => ({
+      ...runtime,
+      lastErrorAt: new Date().toISOString(),
+      lastErrorMessage: errorMessage,
+    }));
 
     await touchLease();
     await writeAuditLog(storage, actorUserId, `admin.backup.remote.${trigger}.failed`, 'backup', null, {
       ...getBackupDestinationSummary(destination),
-      error: destination.runtime.lastErrorMessage,
+      error: errorMessage,
       ...(auditMetadata || {}),
     });
     await progress?.({
@@ -431,7 +494,7 @@ export async function executeConfiguredBackup(
       stageDetail: 'txt_backup_remote_run_progress_failed_detail',
       done: true,
       ok: false,
-      error: destination.runtime.lastErrorMessage,
+      error: errorMessage,
     });
     throw error;
   }
@@ -619,12 +682,18 @@ export async function importAndAuditRemoteBackupFile(
   replaceExisting: boolean,
   checksumMismatchAccepted: boolean,
   auditMetadata: Record<string, unknown> | null = null,
-  targetDeviceIdentifier: string | null = null
+  targetDeviceIdentifier: string | null = null,
+  keepAlive?: (() => Promise<void>) | null
 ): Promise<BackupImportExecutionResult> {
+  const touchLease = async () => {
+    await keepAlive?.();
+  };
   const restoreFileName = remoteFile.fileName || remotePath.split('/').pop() || remotePath;
+  await touchLease();
   const externalAttachmentBlobNames = collectExternalRemoteAttachmentBlobNames(remoteFile.bytes);
   const externalAttachmentCache = new Map<string, Uint8Array | null>();
   const progress: BackupRestoreProgressReporter = async (event) => {
+    await touchLease();
     await notifyUserBackupRestoreProgress(
       env,
       actorUserId,
@@ -642,6 +711,7 @@ export async function importAndAuditRemoteBackupFile(
     replaceExisting,
     {
       loadAttachment: async (blobName) => {
+        await touchLease();
         const normalized = String(blobName || '').trim();
         if (!normalized) return null;
         if (externalAttachmentCache.has(normalized)) {
@@ -664,6 +734,7 @@ export async function importAndAuditRemoteBackupFile(
         } catch {
           externalAttachmentCache.set(normalized, await downloadRemoteAttachmentViaDurableObject(env, destination, normalized).catch(() => null));
         }
+        await touchLease();
         return externalAttachmentCache.get(normalized) || null;
       },
     },
@@ -787,13 +858,16 @@ export async function handleGetAdminBackupSettings(request: Request, env: Env, a
 export async function handleUpdateAdminBackupSettings(request: Request, env: Env, actorUser: User): Promise<Response> {
   if (!isAdmin(actorUser)) return errorResponse('Forbidden', 403);
 
-  let body: BackupSettingsInput;
+  let body: BackupSettingsInput & { masterPasswordHash?: string };
   try {
-    body = await request.json<BackupSettingsInput>();
+    body = await request.json<BackupSettingsInput & { masterPasswordHash?: string }>();
   } catch {
     return errorResponse('Backup settings payload is invalid', 400);
   }
 
+  const verificationError = await requireBackupUserVerification(actorUser, String(body.masterPasswordHash || ''), env);
+  if (verificationError) return verificationError;
+
   const storage = new StorageService(env.DB);
   let previous;
   try {
@@ -837,13 +911,16 @@ export async function handleGetAdminBackupSettingsRepairState(request: Request,
 export async function handleRepairAdminBackupSettings(request: Request, env: Env, actorUser: User): Promise<Response> {
   if (!isAdmin(actorUser)) return errorResponse('Forbidden', 403);
 
-  let body: BackupSettingsInput;
+  let body: BackupSettingsInput & { masterPasswordHash?: string; userVerificationToken?: string };
   try {
-    body = await request.json<BackupSettingsInput>();
+    body = await request.json<BackupSettingsInput & { masterPasswordHash?: string; userVerificationToken?: string }>();
   } catch {
     return errorResponse('Backup settings repair payload is invalid', 400);
   }
 
+  const verificationError = await requireBackupRepairVerification(actorUser, body, env);
+  if (verificationError) return verificationError;
+
   const storage = new StorageService(env.DB);
   let previous;
   try {
@@ -871,15 +948,18 @@ export async function handleRunAdminConfiguredBackup(request: Request, env: Env,
   if (!isAdmin(actorUser)) return errorResponse('Forbidden', 403);
 
   try {
-    let body: { destinationId?: string } | null = null;
+    let body: { destinationId?: string; masterPasswordHash?: string } | null = null;
     try {
       if ((request.headers.get('Content-Type') || '').includes('application/json')) {
-        body = await request.json<{ destinationId?: string }>();
+        body = await request.json<{ destinationId?: string; masterPasswordHash?: string }>();
       }
     } catch {
       return errorResponse('Backup run payload is invalid', 400);
     }
 
+    const verificationError = await requireBackupUserVerification(actorUser, String(body?.masterPasswordHash || ''), env);
+    if (verificationError) return verificationError;
+
     const outcome = await runConfiguredBackupInDurableObject(env, {
       actorUserId: actorUser.id,
       auditMetadata: auditRequestMetadata(request),
@@ -928,12 +1008,21 @@ export async function handleListAdminRemoteBackups(request: Request, env: Env, a
 export async function handleDownloadAdminRemoteBackup(request: Request, env: Env, actorUser: User): Promise<Response> {
   if (!isAdmin(actorUser)) return errorResponse('Forbidden', 403);
 
+  let body: { destinationId?: string; path?: string; masterPasswordHash?: string };
+  try {
+    body = await request.json<{ destinationId?: string; path?: string; masterPasswordHash?: string }>();
+  } catch {
+    return errorResponse('Remote backup download payload is invalid', 400);
+  }
+
+  const verificationError = await requireBackupUserVerification(actorUser, String(body.masterPasswordHash || ''), env);
+  if (verificationError) return verificationError;
+
   const storage = new StorageService(env.DB);
   try {
     const settings = await loadBackupSettings(storage, env, 'UTC');
-    const url = new URL(request.url);
+    const path = ensureRemoteRestoreCandidate(String(body.path || ''));
-    const path = ensureRemoteRestoreCandidate(url.searchParams.get('path') || '');
+    const destination = requireBackupDestination(settings, body.destinationId || null);
-    const destination = requireBackupDestination(settings, url.searchParams.get('destinationId') || null);
     const remoteFile = await downloadRemoteBackupFile(destination, path);
     return new Response(remoteFile.bytes, {
       status: 200,
@@ -994,13 +1083,22 @@ 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; allowChecksumMismatch?: boolean };
+  let body: {
+    destinationId?: string;
+    path?: string;
+    replaceExisting?: boolean;
+    allowChecksumMismatch?: boolean;
+    masterPasswordHash?: string;
+  };
   try {
     body = await request.json<{ destinationId?: string; path?: string; replaceExisting?: boolean }>();
   } catch {
     return errorResponse('Remote restore payload is invalid', 400);
   }
 
+  const verificationError = await requireBackupUserVerification(actorUser, String(body.masterPasswordHash || ''), env);
+  if (verificationError) return verificationError;
+
   try {
     const path = ensureRemoteRestoreCandidate(String(body.path || ''));
     const targetDeviceIdentifier = String(request.headers.get('X-NodeWarden-Acting-Device-Id') || '').trim() || null;
@@ -1028,14 +1126,16 @@ export async function handleAdminExportBackup(request: Request, env: Env, actorU
 
   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;
+  let body: { includeAttachments?: boolean; masterPasswordHash?: string } | null = null;
   try {
     if ((request.headers.get('Content-Type') || '').includes('application/json')) {
-      body = await request.json<{ includeAttachments?: boolean }>();
+      body = await request.json<{ includeAttachments?: boolean; masterPasswordHash?: string }>();
     }
   } catch {
     return errorResponse('Backup export payload is invalid', 400);
   }
+  const verificationError = await requireBackupUserVerification(actorUser, String(body?.masterPasswordHash || ''), env);
+  if (verificationError) return verificationError;
   let archive: BackupArchiveBundle;
   try {
     const progress = async (event: {
@@ -1140,6 +1240,9 @@ export async function handleAdminImportBackup(request: Request, env: Env, actorU
     return errorResponse('Backup file is required', 400);
   }
 
+  const verificationError = await requireBackupUserVerification(actorUser, String(formData.get('masterPasswordHash') || ''), env);
+  if (verificationError) return verificationError;
+
   const replaceExisting = String(formData.get('replaceExisting') || '').trim() === '1';
   const allowChecksumMismatch = String(formData.get('allowChecksumMismatch') || '').trim() === '1';
   let archiveBytes: Uint8Array;

src/handlers/identity.ts

@@ -4,7 +4,7 @@ import { AuthService } from '../services/auth';
 import { RateLimitService, getClientIdentifier } from '../services/ratelimit';
 import { jsonResponse, errorResponse, identityErrorResponse } from '../utils/response';
 import { LIMITS } from '../config/limits';
-import { isTotpEnabled, verifyTotpToken } from '../utils/totp';
+import { findMatchingTotpCounter, isTotpEnabled } from '../utils/totp';
 import { createRefreshToken } from '../utils/jwt';
 import { readAuthRequestDeviceInfo } from '../utils/device';
 import { createRecoveryCode, recoveryCodeEquals } from '../utils/recovery-code';
@@ -21,6 +21,7 @@ import {
   buildAccountPasskeyTokenUserDecryptionOption,
 } from './account-passkeys';
 import { isAuthRequestExpired } from '../services/storage-auth-request-repo';
+import { createPasskeyUserVerificationToken } from '../utils/user-verification-token';
 
 const TWO_FACTOR_REMEMBER_TTL_MS = 30 * 24 * 60 * 60 * 1000;
 const TWO_FACTOR_PROVIDER_AUTHENTICATOR = 0;
@@ -336,6 +337,7 @@ export async function handleToken(request: Request, env: Env): Promise<Response>
     }
 
     let validatedAuthRequestId: string | null = null;
+    let authRequestLoginKey: string | null = null;
     let valid = false;
     const normalizedAuthRequestId = String(authRequestId || '').trim();
     if (normalizedAuthRequestId) {
@@ -348,10 +350,12 @@ export async function handleToken(request: Request, env: Env): Promise<Response>
         authRequest.responseDate &&
         !authRequest.authenticationDate &&
         !isAuthRequestExpired(authRequest) &&
+        !!authRequest.key &&
         constantTimeEquals(authRequest.accessCode, passwordHash)
       );
       if (valid) {
         validatedAuthRequestId = authRequest!.id;
+        authRequestLoginKey = authRequest!.key;
       }
     } else {
       valid = await auth.verifyPassword(passwordHash, user.masterPasswordHash, user.email);
@@ -408,8 +412,12 @@ export async function handleToken(request: Request, env: Env): Promise<Response>
           return twoFactorRequiredResponse('Two factor required.');
         }
       } else if (normalizedTwoFactorProvider === String(TWO_FACTOR_PROVIDER_AUTHENTICATOR)) {
-        const totpOk = await verifyTotpToken(effectiveTotpSecret, normalizedTwoFactorToken);
+        const matchedCounter = await findMatchingTotpCounter(effectiveTotpSecret, normalizedTwoFactorToken);
-        if (!totpOk) {
+        if (matchedCounter == null) {
+          return recordFailedTwoFactorAndBuildResponse(rateLimit, loginIdentifier);
+        }
+        const consumed = await storage.consumeTotpLoginCounter(user.id, matchedCounter);
+        if (!consumed) {
           return recordFailedTwoFactorAndBuildResponse(rateLimit, loginIdentifier);
         }
       } else if (
@@ -488,7 +496,7 @@ export async function handleToken(request: Request, env: Env): Promise<Response>
       token_type: 'Bearer',
       ...(shouldUseWebSession(request) ? { web_session: true } : { refresh_token: refreshToken }),
       ...(trustedTwoFactorTokenToReturn ? { TwoFactorToken: trustedTwoFactorTokenToReturn } : {}),
-      Key: user.key,
+      Key: authRequestLoginKey || user.key,
       PrivateKey: user.privateKey,
       AccountKeys: accountKeys,
       accountKeys: accountKeys,
@@ -583,6 +591,7 @@ 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 userVerificationToken = await createPasskeyUserVerificationToken(env, user.id, 'backup.settings.repair');
     const accountKeys = buildAccountKeys(user);
     const webAuthnPrfOption = buildAccountPasskeyTokenUserDecryptionOption(credential);
     const userDecryptionOptions = buildUserDecryptionOptions(user, webAuthnPrfOption);
@@ -621,6 +630,8 @@ export async function handleToken(request: Request, env: Env): Promise<Response>
       ApiUseKeyConnector: false,
       scope: 'api offline_access',
       unofficialServer: true,
+      UserVerificationToken: userVerificationToken,
+      userVerificationToken,
       UserDecryptionOptions: userDecryptionOptions,
       userDecryptionOptions: userDecryptionOptions,
     };

src/handlers/sends-public.ts

@@ -2,6 +2,7 @@ import { Env, SendType } from '../types';
 import { StorageService } from '../services/storage';
 import { RateLimitService, getClientIdentifier } from '../services/ratelimit';
 import { jsonResponse, errorResponse } from '../utils/response';
+import { sanitizeDownloadContentType } from '../utils/content-type';
 import { LIMITS } from '../config/limits';
 import {
   createSendAccessToken,
@@ -306,7 +307,7 @@ export async function handleDownloadSendFile(
 
   return new Response(object.body, {
     headers: {
-      'Content-Type': object.contentType || 'application/octet-stream',
+      'Content-Type': sanitizeDownloadContentType(object.contentType),
       'Content-Length': String(object.size),
       'Content-Disposition': contentDispositionAttachment(fileName),
       'Cache-Control': 'private, no-cache',

src/router-admin-backup.ts

@@ -50,7 +50,7 @@ export async function handleAdminBackupRoute(
     return handleListAdminRemoteBackups(request, env, actorUser);
   }
 
-  if (path === '/api/admin/backup/remote/download' && method === 'GET') {
+  if (path === '/api/admin/backup/remote/download' && method === 'POST') {
     return handleDownloadAdminRemoteBackup(request, env, actorUser);
   }
 

src/router-public.ts

@@ -27,6 +27,7 @@ import {
   handleNotificationsNegotiate,
 } from './handlers/notifications';
 import { handlePublicUploadSendFile } from './handlers/sends';
+import { isSafeWebsiteIconContentType } from './utils/content-type';
 import { jsonResponse } from './utils/response';
 import { StorageService } from './services/storage';
 import type { Env } from './types';
@@ -126,6 +127,7 @@ function buildConfigResponse(origin: string) {
       'email-verification': true,
       'pm-19051-send-email-verification': false,
       'pm-19148-innovation-archive': true,
+      'pm-30529-webauthn-related-origins': true,
       'unauth-ui-refresh': true,
       'web-push': false,
     },
@@ -241,6 +243,7 @@ function iconResponse(body: BodyInit | null, contentType: string | null): Respon
     headers: {
       'Content-Type': contentType || 'image/png',
       'Cache-Control': `public, max-age=${LIMITS.cache.iconTtlSeconds}, immutable`,
+      'Content-Security-Policy': "default-src 'none'; img-src 'self' data:; sandbox",
     },
   });
 }
@@ -272,7 +275,7 @@ async function handleWebsiteIcon(host: string, fallbackMode: 'default' | 'not-fo
 
       if (!resp.ok) continue;
       const contentType = String(resp.headers.get('Content-Type') || '').toLowerCase();
-      if (!contentType.startsWith('image/')) continue;
+      if (!isSafeWebsiteIconContentType(contentType)) continue;
 
       const contentLength = getPositiveContentLength(resp.headers);
       if (contentLength !== null && contentLength > ICON_MAX_BUFFER_BYTES) continue;
@@ -467,7 +470,7 @@ export async function handlePublicRoute(
     const blocked = await enforcePublicRateLimit('public-read', LIMITS.rateLimit.publicReadRequestsPerMinute);
     if (blocked) return blocked;
     const origin = new URL(request.url).origin;
-    return jsonResponse(buildConfigResponse(origin));
+    return jsonResponse(buildConfigResponse(origin), 200, { 'Cache-Control': 'no-store' });
   }
 
   if (path === '/api/version' && method === 'GET') {

src/services/backup-config.ts

@@ -26,6 +26,7 @@ import {
 } from '../../shared/backup-schema';
 
 export const BACKUP_SETTINGS_CONFIG_KEY = 'backup.settings.v1';
+const BACKUP_RUNTIME_CONFIG_KEY = 'backup.runtime.v1';
 export const BACKUP_SCHEDULER_WINDOW_MINUTES = 5;
 const MAX_BACKUP_DESTINATIONS = 24;
 
@@ -324,6 +325,47 @@ function mapDestinationsById(destinations: BackupDestinationRecord[]): Map<strin
   return new Map(destinations.map((destination) => [destination.id, destination]));
 }
 
+function stripRuntimeFromSettings(settings: BackupSettings): BackupSettings {
+  return {
+    destinations: settings.destinations.map((destination) => ({
+      ...destination,
+      runtime: normalizeRuntime(null),
+    })),
+  };
+}
+
+function serializeRuntimeState(settings: BackupSettings): string {
+  return JSON.stringify({
+    version: 1,
+    destinations: Object.fromEntries(
+      settings.destinations.map((destination) => [destination.id, normalizeRuntime(destination.runtime)])
+    ),
+  });
+}
+
+async function loadBackupRuntimeStates(storage: StorageService): Promise<Map<string, BackupRuntimeState>> {
+  const raw = await storage.getConfigValue(BACKUP_RUNTIME_CONFIG_KEY);
+  if (!raw) return new Map();
+  try {
+    const parsed = JSON.parse(raw) as { destinations?: Record<string, unknown> };
+    const entries = Object.entries(parsed.destinations || {})
+      .filter(([id]) => !!asTrimmedString(id))
+      .map(([id, runtime]) => [id, normalizeRuntime(runtime)] as const);
+    return new Map(entries);
+  } catch {
+    return new Map();
+  }
+}
+
+function mergeRuntimeStates(settings: BackupSettings, runtimes: Map<string, BackupRuntimeState>): BackupSettings {
+  return {
+    destinations: settings.destinations.map((destination) => ({
+      ...destination,
+      runtime: runtimes.get(destination.id) || normalizeRuntime(destination.runtime),
+    })),
+  };
+}
+
 export function getDefaultBackupSettings(timezone: string = 'UTC'): BackupSettings {
   return createSharedDefaultBackupSettings(assertValidTimeZone(timezone));
 }
@@ -387,27 +429,30 @@ export function normalizeBackupSettingsInput(
 }
 
 export function serializeBackupSettings(settings: BackupSettings): string {
-  return JSON.stringify(settings);
+  return JSON.stringify(stripRuntimeFromSettings(settings));
 }
 
 export async function loadBackupSettings(storage: StorageService, env: Env, fallbackTimezone: string = 'UTC'): Promise<BackupSettings> {
   const raw = await storage.getConfigValue(BACKUP_SETTINGS_CONFIG_KEY);
+  const mergeRuntime = async (settings: BackupSettings): Promise<BackupSettings> => (
+    mergeRuntimeStates(settings, await loadBackupRuntimeStates(storage))
+  );
   if (!raw) {
     const settings = getDefaultBackupSettings(fallbackTimezone);
     await saveBackupSettings(storage, env, settings);
-    return settings;
+    return mergeRuntime(settings);
   }
 
   const envelope = parseBackupSettingsEnvelope(raw);
   if (!envelope) {
     const settings = parseBackupSettings(raw, fallbackTimezone);
     await saveBackupSettings(storage, env, settings);
-    return settings;
+    return mergeRuntime(settings);
   }
 
   try {
     const decrypted = await decryptBackupSettingsRuntime(raw, env);
-    return parseBackupSettings(decrypted, fallbackTimezone);
+    return mergeRuntime(parseBackupSettings(decrypted, fallbackTimezone));
   } catch {
     throw new Error('Backup settings need administrator reactivation after restore');
   }
@@ -417,6 +462,27 @@ export async function saveBackupSettings(storage: StorageService, env: Env, sett
   const users = await storage.getAllUsers();
   const encrypted = await encryptBackupSettingsEnvelope(serializeBackupSettings(settings), env, users);
   await storage.setConfigValue(BACKUP_SETTINGS_CONFIG_KEY, encrypted);
+  await saveBackupRuntimeStates(storage, settings);
+}
+
+export async function saveBackupRuntimeStates(storage: StorageService, settings: BackupSettings): Promise<void> {
+  await storage.setConfigValue(BACKUP_RUNTIME_CONFIG_KEY, serializeRuntimeState(settings));
+}
+
+export async function updateBackupDestinationRuntime(
+  storage: StorageService,
+  destinationId: string,
+  mutator: (runtime: BackupRuntimeState) => BackupRuntimeState
+): Promise<BackupRuntimeState> {
+  const runtimes = await loadBackupRuntimeStates(storage);
+  const current = runtimes.get(destinationId) || normalizeRuntime(null);
+  const next = normalizeRuntime(mutator(current));
+  runtimes.set(destinationId, next);
+  await storage.setConfigValue(BACKUP_RUNTIME_CONFIG_KEY, JSON.stringify({
+    version: 1,
+    destinations: Object.fromEntries(runtimes.entries()),
+  }));
+  return next;
 }
 
 export async function normalizeImportedBackupSettings(storage: StorageService, env: Env, fallbackTimezone: string = 'UTC'): Promise<void> {
@@ -596,9 +662,9 @@ export function hasBackupSlotBetween(
   const endMs = endExclusive.getTime();
   if (!Number.isFinite(startMs) || !Number.isFinite(endMs) || endMs <= startMs) return false;
 
-  const lastAttemptAt = destination.runtime.lastAttemptAt ? new Date(destination.runtime.lastAttemptAt) : null;
+  const lastSuccessAt = destination.runtime.lastSuccessAt ? new Date(destination.runtime.lastSuccessAt) : null;
-  const lastAttemptMs = lastAttemptAt && Number.isFinite(lastAttemptAt.getTime())
+  const lastSuccessMs = lastSuccessAt && Number.isFinite(lastSuccessAt.getTime())
-    ? lastAttemptAt.getTime()
+    ? lastSuccessAt.getTime()
     : Number.NEGATIVE_INFINITY;
 
   const dayCursor = new Date(startMs);
@@ -620,7 +686,7 @@ export function hasBackupSlotBetween(
       for (const slotStart of slotStarts) {
         const slotStartMs = slotStart.getTime();
         if (slotStartMs < startMs || slotStartMs >= endMs) continue;
-        if (lastAttemptMs >= slotStartMs) continue;
+        if (lastSuccessMs >= slotStartMs) continue;
         return true;
       }
     }
@@ -637,9 +703,9 @@ export function isBackupDueNow(
 ): boolean {
   if (!destination.schedule.enabled) return false;
   const toleranceMs = Math.max(1, windowMinutes) * 60 * 1000;
-  const lastAttemptAt = destination.runtime.lastAttemptAt ? new Date(destination.runtime.lastAttemptAt) : null;
+  const lastSuccessAt = destination.runtime.lastSuccessAt ? new Date(destination.runtime.lastSuccessAt) : null;
-  const lastAttemptMs = lastAttemptAt && Number.isFinite(lastAttemptAt.getTime())
+  const lastSuccessMs = lastSuccessAt && Number.isFinite(lastSuccessAt.getTime())
-    ? lastAttemptAt.getTime()
+    ? lastSuccessAt.getTime()
     : Number.NEGATIVE_INFINITY;
   const localDateKey = getBackupLocalDateKey(now, destination.schedule.timezone);
   const slotStarts = getBackupSlotStartsForLocalDay(
@@ -652,7 +718,7 @@ export function isBackupDueNow(
   for (const slotStart of slotStarts) {
     const slotStartMs = slotStart.getTime();
     if (now.getTime() < slotStartMs || now.getTime() >= slotStartMs + toleranceMs) continue;
-    if (lastAttemptMs >= slotStartMs) return false;
+    if (lastSuccessMs >= slotStartMs) return false;
     return true;
   }
   return false;

src/services/backup-uploader.ts

@@ -33,6 +33,13 @@ export interface RemoteBackupFile {
   bytes: Uint8Array;
 }
 
+export interface RemoteBackupFileStat {
+  provider: BackupDestinationType;
+  remotePath: string;
+  size: number | null;
+  modifiedAt: string | null;
+}
+
 export interface RemoteBackupFilePutOptions {
   contentType?: string;
 }
@@ -433,6 +440,10 @@ async function deleteFromWebDav(config: WebDavBackupDestination, relativePath: s
 }
 
 async function existsInWebDav(config: WebDavBackupDestination, relativePath: string): Promise<boolean> {
+  return (await statWebDavFile(config, relativePath)) !== null;
+}
+
+async function statWebDavFile(config: WebDavBackupDestination, relativePath: string): Promise<RemoteBackupFileStat | null> {
   const authHeader = toBasicAuthHeader(config.username, config.password);
   const remotePath = webDavFullPath(config, relativePath);
   const response = await fetch(buildWebDavUrl(config.baseUrl, remotePath), {
@@ -441,11 +452,17 @@ async function existsInWebDav(config: WebDavBackupDestination, relativePath: str
       Authorization: authHeader,
     },
   });
-  if (response.status === 404) return false;
+  if (response.status === 404) return null;
   if (!response.ok) {
     throw new Error(`WebDAV existence check failed: ${response.status}`);
   }
-  return true;
+  const size = Number(response.headers.get('Content-Length') || '');
+  return {
+    provider: 'webdav',
+    remotePath: normalizeRelativePath(relativePath),
+    size: Number.isFinite(size) ? size : null,
+    modifiedAt: parseHttpDate(response.headers.get('Last-Modified') || ''),
+  };
 }
 
 function isBucketHostedS3Endpoint(endpoint: URL, bucket: string): boolean {
@@ -540,10 +557,16 @@ async function listS3Entries(config: S3BackupDestination, relativePath: string):
   const currentPath = normalizeRelativePath(relativePath);
   const targetPrefixBase = normalizeS3ObjectKey(config, currentPath);
   const targetPrefix = trimSlashes(targetPrefixBase) ? `${trimSlashes(targetPrefixBase)}/` : '';
+  const rootPrefix = trimSlashes(config.rootPath);
+  const items: RemoteBackupItem[] = [];
+  let continuationToken = '';
+
+  do {
     const url = s3BucketBaseUrl(config);
     url.searchParams.set('list-type', '2');
     url.searchParams.set('delimiter', '/');
     if (targetPrefix) url.searchParams.set('prefix', targetPrefix);
+    if (continuationToken) url.searchParams.set('continuation-token', continuationToken);
 
     const response = await signedS3Request(config, 'GET', url);
     if (!response.ok) {
@@ -551,8 +574,6 @@ async function listS3Entries(config: S3BackupDestination, relativePath: string):
     }
 
     const xml = await response.text();
-  const rootPrefix = trimSlashes(config.rootPath);
-  const items: RemoteBackupItem[] = [];
 
     for (const prefix of extractXmlBlocks(xml, 'CommonPrefixes')) {
       const fullPrefix = trimSlashes(extractXmlFirst(prefix, 'Prefix') || '');
@@ -596,6 +617,9 @@ async function listS3Entries(config: S3BackupDestination, relativePath: string):
       });
     }
 
+    continuationToken = extractXmlFirst(xml, 'NextContinuationToken') || '';
+  } while (continuationToken);
+
   const deduped = new Map<string, RemoteBackupItem>();
   for (const item of items) deduped.set(`${item.isDirectory ? 'd' : 'f'}:${item.path}`, item);
 
@@ -637,14 +661,24 @@ async function deleteFromS3(config: S3BackupDestination, relativePath: string):
 }
 
 async function existsInS3(config: S3BackupDestination, relativePath: string): Promise<boolean> {
+  return (await statS3File(config, relativePath)) !== null;
+}
+
+async function statS3File(config: S3BackupDestination, relativePath: string): Promise<RemoteBackupFileStat | null> {
   const objectKey = normalizeS3ObjectKey(config, relativePath);
   const url = s3ObjectUrl(config, objectKey);
   const response = await signedS3Request(config, 'HEAD', url);
-  if (response.status === 404) return false;
+  if (response.status === 404) return null;
   if (!response.ok) {
     throw new Error(`S3 existence check failed: ${response.status}`);
   }
-  return true;
+  const size = Number(response.headers.get('Content-Length') || '');
+  return {
+    provider: 's3',
+    remotePath: normalizeRelativePath(relativePath),
+    size: Number.isFinite(size) ? size : null,
+    modifiedAt: parseHttpDate(response.headers.get('Last-Modified') || ''),
+  };
 }
 
 interface ConfiguredDestinationAdapter {
@@ -656,6 +690,7 @@ interface ConfiguredDestinationAdapter {
   download: (config: WebDavBackupDestination | S3BackupDestination, relativePath: string) => Promise<RemoteBackupFile>;
   deleteFile: (config: WebDavBackupDestination | S3BackupDestination, relativePath: string) => Promise<void>;
   exists: (config: WebDavBackupDestination | S3BackupDestination, relativePath: string) => Promise<boolean>;
+  stat: (config: WebDavBackupDestination | S3BackupDestination, relativePath: string) => Promise<RemoteBackupFileStat | null>;
 }
 
 export interface RemoteBackupTransferSession {
@@ -666,6 +701,7 @@ export interface RemoteBackupTransferSession {
   download(relativePath: string): Promise<RemoteBackupFile>;
   deleteFile(relativePath: string): Promise<void>;
   exists(relativePath: string): Promise<boolean>;
+  stat(relativePath: string): Promise<RemoteBackupFileStat | null>;
 }
 
 function resolveConfiguredDestinationAdapter(
@@ -683,6 +719,7 @@ function resolveConfiguredDestinationAdapter(
       download: (config, relativePath) => downloadFromWebDav(config as WebDavBackupDestination, relativePath),
       deleteFile: (config, relativePath) => deleteFromWebDav(config as WebDavBackupDestination, relativePath),
       exists: (config, relativePath) => existsInWebDav(config as WebDavBackupDestination, relativePath),
+      stat: (config, relativePath) => statWebDavFile(config as WebDavBackupDestination, relativePath),
     };
   }
   if (destination.type === 's3') {
@@ -695,6 +732,7 @@ function resolveConfiguredDestinationAdapter(
       download: (config, relativePath) => downloadFromS3(config as S3BackupDestination, relativePath),
       deleteFile: (config, relativePath) => deleteFromS3(config as S3BackupDestination, relativePath),
       exists: (config, relativePath) => existsInS3(config as S3BackupDestination, relativePath),
+      stat: (config, relativePath) => statS3File(config as S3BackupDestination, relativePath),
     };
   }
 
@@ -730,6 +768,7 @@ export function createRemoteBackupTransferSession(destination: BackupDestination
     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)),
+    stat: async (relativePath: string) => adapter.stat(adapter.config, normalizeRelativePath(relativePath)),
   };
 }
 

src/services/storage-admin-repo.ts

@@ -117,12 +117,36 @@ export async function listInvites(db: D1Database, includeInactive: boolean = fal
 }
 
 export async function markInviteUsed(db: D1Database, code: string, userId: string): Promise<boolean> {
+  void userId;
   const now = new Date().toISOString();
   const result = await db
     .prepare(
-      "UPDATE invites SET status = 'used', used_by = ?, updated_at = ? WHERE code = ? AND status = 'active' AND expires_at > ?"
+      "UPDATE invites SET status = 'used', used_by = NULL, updated_at = ? WHERE code = ? AND status = 'active' AND expires_at > ?"
     )
-    .bind(userId, now, code, now)
+    .bind(now, code, now)
+    .run();
+  return (result.meta.changes ?? 0) > 0;
+}
+
+export async function assignInviteUsedBy(db: D1Database, code: string, userId: string): Promise<boolean> {
+  const now = new Date().toISOString();
+  const result = await db
+    .prepare(
+      "UPDATE invites SET used_by = ?, updated_at = ? WHERE code = ? AND status = 'used' AND used_by IS NULL"
+    )
+    .bind(userId, now, code)
+    .run();
+  return (result.meta.changes ?? 0) > 0;
+}
+
+export async function revertInviteUsed(db: D1Database, code: string, userId: string): Promise<boolean> {
+  void userId;
+  const now = new Date().toISOString();
+  const result = await db
+    .prepare(
+      "UPDATE invites SET status = 'active', used_by = NULL, updated_at = ? WHERE code = ? AND status = 'used' AND used_by IS NULL"
+    )
+    .bind(now, code)
     .run();
   return (result.meta.changes ?? 0) > 0;
 }

src/services/storage-schema.ts

@@ -78,6 +78,7 @@ const SCHEMA_STATEMENTS: readonly string[] = [
   'code TEXT PRIMARY KEY, created_by TEXT NOT NULL, used_by TEXT, expires_at TEXT NOT NULL, status TEXT NOT NULL, created_at TEXT NOT NULL, updated_at TEXT NOT NULL, ' +
   'FOREIGN KEY (created_by) REFERENCES users(id) ON DELETE CASCADE, ' +
   'FOREIGN KEY (used_by) REFERENCES users(id) ON DELETE SET NULL)',
+  'ALTER TABLE invites ADD COLUMN used_by TEXT',
   'CREATE INDEX IF NOT EXISTS idx_invites_status_expires ON invites(status, expires_at)',
   'CREATE INDEX IF NOT EXISTS idx_invites_created_by ON invites(created_by, created_at)',
 
@@ -126,6 +127,12 @@ const SCHEMA_STATEMENTS: readonly string[] = [
   'FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE)',
   'CREATE INDEX IF NOT EXISTS idx_trusted_two_factor_device_tokens_user_device ON trusted_two_factor_device_tokens(user_id, device_identifier)',
 
+  'CREATE TABLE IF NOT EXISTS totp_login_replays (' +
+  'user_id TEXT NOT NULL, time_counter INTEGER NOT NULL, consumed_at INTEGER NOT NULL, ' +
+  'PRIMARY KEY (user_id, time_counter), ' +
+  'FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE)',
+  'CREATE INDEX IF NOT EXISTS idx_totp_login_replays_consumed_at ON totp_login_replays(consumed_at)',
+
   'CREATE TABLE IF NOT EXISTS webauthn_credentials (' +
   'id TEXT PRIMARY KEY, user_id TEXT NOT NULL, name TEXT NOT NULL, public_key TEXT NOT NULL, credential_id TEXT NOT NULL, counter INTEGER NOT NULL DEFAULT 0, ' +
   'type TEXT, aa_guid TEXT, transports TEXT, encrypted_user_key TEXT, encrypted_public_key TEXT, encrypted_private_key TEXT, supports_prf INTEGER NOT NULL DEFAULT 0, ' +

src/services/storage-totp-replay-repo.ts

@@ -0,0 +1,35 @@
+type ShouldRunPeriodicCleanup = (lastRunAt: number, intervalMs: number) => boolean;
+
+export async function consumeTotpLoginCounter(
+  db: D1Database,
+  shouldRunPeriodicCleanup: ShouldRunPeriodicCleanup,
+  lastCleanupAt: number,
+  cleanupIntervalMs: number,
+  userId: string,
+  timeCounter: number,
+  consumedAtMs: number,
+  markerTtlMs: number
+): Promise<{ consumed: boolean; cleanedUpAt: number | null }> {
+  let cleanedUpAt: number | null = null;
+
+  if (shouldRunPeriodicCleanup(lastCleanupAt, cleanupIntervalMs)) {
+    await db
+      .prepare('DELETE FROM totp_login_replays WHERE consumed_at < ?')
+      .bind(consumedAtMs - markerTtlMs)
+      .run();
+    cleanedUpAt = consumedAtMs;
+  }
+
+  const result = await db
+    .prepare(
+      'INSERT INTO totp_login_replays(user_id, time_counter, consumed_at) VALUES(?, ?, ?) ' +
+        'ON CONFLICT(user_id, time_counter) DO NOTHING'
+    )
+    .bind(userId, timeCounter, consumedAtMs)
+    .run();
+
+  return {
+    consumed: (result.meta.changes ?? 0) > 0,
+    cleanedUpAt,
+  };
+}

src/services/storage.ts

@@ -22,6 +22,7 @@ import {
   type AuditLogListOptions,
   createAuditLog as createStoredAuditLog,
   clearAuditLogs as clearStoredAuditLogs,
+  assignInviteUsedBy as assignStoredInviteUsedBy,
   createInvite as createStoredInvite,
   deleteAllInvites as deleteStoredInvites,
   getInvite as findStoredInvite,
@@ -30,6 +31,7 @@ import {
   markInviteUsed as markStoredInviteUsed,
   pruneAuditLogs as pruneStoredAuditLogs,
   pruneAuditLogsToMax as pruneStoredAuditLogsToMax,
+  revertInviteUsed as revertStoredInviteUsed,
   revokeInvite as revokeStoredInvite,
 } from './storage-admin-repo';
 import {
@@ -121,6 +123,9 @@ import {
   ensureUsedAttachmentDownloadTokenTable as ensureStoredAttachmentTokenTable,
   consumeAttachmentDownloadToken as consumeStoredAttachmentDownloadToken,
 } from './storage-attachment-token-repo';
+import {
+  consumeTotpLoginCounter as consumeStoredTotpLoginCounter,
+} from './storage-totp-replay-repo';
 import {
   getRevisionDate as getStoredRevisionDate,
   updateRevisionDate as updateStoredRevisionDate,
@@ -148,8 +153,8 @@ const STORAGE_SCHEMA_VERSION_KEY = 'schema.version';
 // Bump this whenever src/services/storage-schema.ts or migrations/0001_init.sql
 // changes. Existing D1 installs only rerun ensureStorageSchema() when this value
 // differs from config.schema.version.
-const STORAGE_SCHEMA_VERSION = '2026-06-22-push-notifications';
+const STORAGE_SCHEMA_VERSION = '2026-06-23-totp-login-replay';
-const REQUIRED_SCHEMA_TABLES = ['webauthn_credentials', 'webauthn_challenges', 'auth_requests'] as const;
+const REQUIRED_SCHEMA_TABLES = ['webauthn_credentials', 'webauthn_challenges', 'auth_requests', 'totp_login_replays'] as const;
 
 // D1-backed storage.
 // Contract:
@@ -162,10 +167,13 @@ export class StorageService {
   private static schemaVerified = false;
   private static lastRefreshTokenCleanupAt = 0;
   private static lastAttachmentTokenCleanupAt = 0;
+  private static lastTotpReplayCleanupAt = 0;
   private static readonly MAX_D1_SQL_VARIABLES = 100;
 
   private static readonly REFRESH_TOKEN_CLEANUP_INTERVAL_MS = LIMITS.cleanup.refreshTokenCleanupIntervalMs;
   private static readonly ATTACHMENT_TOKEN_CLEANUP_INTERVAL_MS = LIMITS.cleanup.attachmentTokenCleanupIntervalMs;
+  private static readonly TOTP_REPLAY_CLEANUP_INTERVAL_MS = 10 * 60 * 1000;
+  private static readonly TOTP_REPLAY_MARKER_TTL_MS = 5 * 60 * 1000;
   private static readonly PERIODIC_CLEANUP_PROBABILITY = LIMITS.cleanup.cleanupProbability;
 
   constructor(private db: D1Database) {}
@@ -313,6 +321,14 @@ export class StorageService {
     return markStoredInviteUsed(this.db, code, userId);
   }
 
+  async assignInviteUsedBy(code: string, userId: string): Promise<boolean> {
+    return assignStoredInviteUsedBy(this.db, code, userId);
+  }
+
+  async revertInviteUsed(code: string, userId: string): Promise<boolean> {
+    return revertStoredInviteUsed(this.db, code, userId);
+  }
+
   async revokeInvite(code: string): Promise<boolean> {
     return revokeStoredInvite(this.db, code);
   }
@@ -823,6 +839,24 @@ export class StorageService {
     return findStoredTrustedTokenUserId(this.db, this.trustedTwoFactorTokenKey.bind(this), token, deviceIdentifier);
   }
 
+  async consumeTotpLoginCounter(userId: string, timeCounter: number, consumedAtMs: number = Date.now()): Promise<boolean> {
+    if (!Number.isSafeInteger(timeCounter) || timeCounter < 0) return false;
+    const result = await consumeStoredTotpLoginCounter(
+      this.db,
+      this.shouldRunPeriodicCleanup.bind(this),
+      StorageService.lastTotpReplayCleanupAt,
+      StorageService.TOTP_REPLAY_CLEANUP_INTERVAL_MS,
+      userId,
+      timeCounter,
+      consumedAtMs,
+      StorageService.TOTP_REPLAY_MARKER_TTL_MS
+    );
+    if (result.cleanedUpAt !== null) {
+      StorageService.lastTotpReplayCleanupAt = result.cleanedUpAt;
+    }
+    return result.consumed;
+  }
+
   // --- Revision dates ---
 
   async getRevisionDate(userId: string): Promise<string> {

src/types/index.ts

@@ -466,6 +466,8 @@ export interface TokenResponse {
   ResetMasterPassword: boolean;
   scope: string;
   unofficialServer: boolean;
+  UserVerificationToken?: string;
+  userVerificationToken?: string;
   MasterPasswordPolicy?: {
     minComplexity: number;
     minLength: number;

src/utils/content-type.ts

@@ -0,0 +1,38 @@
+const ACTIVE_DOWNLOAD_MEDIA_TYPES = new Set([
+  'application/xhtml+xml',
+  'application/xml',
+  'image/svg+xml',
+  'text/html',
+  'text/xml',
+]);
+
+const SAFE_ICON_MEDIA_TYPES = new Set([
+  'image/avif',
+  'image/bmp',
+  'image/gif',
+  'image/jpeg',
+  'image/png',
+  'image/vnd.microsoft.icon',
+  'image/webp',
+  'image/x-icon',
+]);
+
+function normalizeMediaType(contentType: string | null | undefined): string {
+  return String(contentType || '')
+    .split(';', 1)[0]
+    .trim()
+    .toLowerCase();
+}
+
+export function isSafeWebsiteIconContentType(contentType: string | null | undefined): boolean {
+  return SAFE_ICON_MEDIA_TYPES.has(normalizeMediaType(contentType));
+}
+
+export function sanitizeDownloadContentType(contentType: string | null | undefined): string {
+  const mediaType = normalizeMediaType(contentType);
+  if (!mediaType) return 'application/octet-stream';
+  if (ACTIVE_DOWNLOAD_MEDIA_TYPES.has(mediaType)) {
+    return 'application/octet-stream';
+  }
+  return contentType || mediaType;
+}

src/utils/response.ts

@@ -100,7 +100,9 @@ export function applyCors(
   headers.set('X-Frame-Options', 'DENY');
   headers.set('X-Content-Type-Options', 'nosniff');
   headers.set('Referrer-Policy', 'strict-origin-when-cross-origin');
+  if (!headers.has('Content-Security-Policy')) {
     headers.set('Content-Security-Policy', "frame-ancestors 'none'; img-src 'self' data:");
+  }
   return new Response(response.body, {
     status: response.status,
     statusText: response.statusText,

src/utils/totp.ts

@@ -70,17 +70,22 @@ function normalizeToken(token: string): string {
   return token.replace(/\s+/g, '');
 }
 
-export async function verifyTotpToken(secretRaw: string, tokenRaw: string, nowMs: number = Date.now()): Promise<boolean> {
+export async function findMatchingTotpCounter(
+  secretRaw: string,
+  tokenRaw: string,
+  nowMs: number = Date.now()
+): Promise<number | null> {
   const token = normalizeToken(tokenRaw);
-  if (!/^\d{6}$/.test(token)) return false;
+  if (!/^\d{6}$/.test(token)) return null;
 
   const secret = base32Decode(secretRaw);
-  if (!secret) return false;
+  if (!secret) return null;
 
   const currentCounter = Math.floor(nowMs / 1000 / TOTP_STEP_SECONDS);
-  let matched = false;
+  let matchedCounter: number | null = null;
   for (let delta = -TOTP_WINDOW; delta <= TOTP_WINDOW; delta++) {
-    const expected = await hotp(secret, currentCounter + delta);
+    const candidateCounter = currentCounter + delta;
+    const expected = await hotp(secret, candidateCounter);
     // Constant-time comparison: always check all windows, never short-circuit.
     const a = new TextEncoder().encode(expected);
     const b = new TextEncoder().encode(token);
@@ -88,9 +93,13 @@ export async function verifyTotpToken(secretRaw: string, tokenRaw: string, nowMs
     for (let i = 0; i < a.length && i < b.length; i++) {
       diff |= a[i] ^ b[i];
     }
-    if (diff === 0) matched = true;
+    if (diff === 0 && matchedCounter == null) matchedCounter = candidateCounter;
   }
-  return matched;
+  return matchedCounter;
+}
+
+export async function verifyTotpToken(secretRaw: string, tokenRaw: string, nowMs: number = Date.now()): Promise<boolean> {
+  return (await findMatchingTotpCounter(secretRaw, tokenRaw, nowMs)) != null;
 }
 
 export function isTotpEnabled(secretRaw: string | undefined | null): boolean {

src/utils/user-verification-token.ts

@@ -0,0 +1,89 @@
+import type { Env } from '../types';
+import { base64UrlToBytes, bytesToBase64Url } from './passkey';
+
+const USER_VERIFICATION_TOKEN_TYPE = 'nodewarden.user-verification.v1';
+const USER_VERIFICATION_TOKEN_TTL_MS = 5 * 60 * 1000;
+
+export type UserVerificationPurpose = 'backup.settings.repair';
+
+interface UserVerificationTokenPayload {
+  typ: typeof USER_VERIFICATION_TOKEN_TYPE;
+  userId: string;
+  method: 'passkey';
+  purpose: UserVerificationPurpose;
+  iat: number;
+  exp: number;
+}
+
+function textBytes(value: string): Uint8Array {
+  return new TextEncoder().encode(value);
+}
+
+async function importHmacKey(secret: string): Promise<CryptoKey> {
+  return crypto.subtle.importKey('raw', textBytes(secret), { name: 'HMAC', hash: 'SHA-256' }, false, ['sign', 'verify']);
+}
+
+async function hmacSha256(secret: string, data: string): Promise<Uint8Array> {
+  const key = await importHmacKey(secret);
+  return new Uint8Array(await crypto.subtle.sign('HMAC', key, textBytes(data)));
+}
+
+function encodeJson(value: unknown): string {
+  return bytesToBase64Url(textBytes(JSON.stringify(value)));
+}
+
+function decodeJson<T>(value: string): T | null {
+  try {
+    return JSON.parse(new TextDecoder().decode(base64UrlToBytes(value))) as T;
+  } catch {
+    return null;
+  }
+}
+
+export async function createPasskeyUserVerificationToken(
+  env: Env,
+  userId: string,
+  purpose: UserVerificationPurpose
+): Promise<string> {
+  const now = Date.now();
+  const payload: UserVerificationTokenPayload = {
+    typ: USER_VERIFICATION_TOKEN_TYPE,
+    userId,
+    method: 'passkey',
+    purpose,
+    iat: now,
+    exp: now + USER_VERIFICATION_TOKEN_TTL_MS,
+  };
+  const header = { alg: 'HS256', typ: 'JWT' };
+  const data = `${encodeJson(header)}.${encodeJson(payload)}`;
+  const signature = bytesToBase64Url(await hmacSha256(env.JWT_SECRET, data));
+  return `${data}.${signature}`;
+}
+
+export async function verifyPasskeyUserVerificationToken(
+  env: Env,
+  token: string,
+  userId: string,
+  purpose: UserVerificationPurpose
+): Promise<boolean> {
+  try {
+    const parts = String(token || '').split('.');
+    if (parts.length !== 3) return false;
+    const data = `${parts[0]}.${parts[1]}`;
+    const expected = await hmacSha256(env.JWT_SECRET, data);
+    const actual = base64UrlToBytes(parts[2]);
+    if (actual.length !== expected.length) return false;
+
+    let diff = 0;
+    for (let i = 0; i < actual.length; i += 1) diff |= actual[i] ^ expected[i];
+    if (diff !== 0) return false;
+
+    const payload = decodeJson<UserVerificationTokenPayload>(parts[1]);
+    if (!payload || payload.typ !== USER_VERIFICATION_TOKEN_TYPE) return false;
+    if (payload.userId !== userId || payload.purpose !== purpose || payload.method !== 'passkey') return false;
+    if (!Number.isFinite(payload.exp) || payload.exp < Date.now()) return false;
+    return true;
+  } catch {
+    return false;
+  }
+}

webapp/src/App.tsx

@@ -11,6 +11,7 @@ import RecoverTwoFactorPage from '@/components/RecoverTwoFactorPage';
 import JwtWarningPage from '@/components/JwtWarningPage';
 import {
   createAuthedFetch,
+  deriveLoginHash,
   getAuthorizedDevices,
   clearProfileSnapshot,
   getCurrentDeviceIdentifier,
@@ -237,6 +238,7 @@ export default function App() {
   const [disableTotpPassword, setDisableTotpPassword] = useState('');
   const [disableTotpSubmitting, setDisableTotpSubmitting] = useState(false);
   const [authRequestDialogDismissedId, setAuthRequestDialogDismissedId] = useState<string | null>(null);
+  const [authRequestDialogSelectedId, setAuthRequestDialogSelectedId] = useState<string | null>(null);
   const [authRequestSubmittingId, setAuthRequestSubmittingId] = useState<string | null>(null);
   const [recoverValues, setRecoverValues] = useState({ email: '', password: '', recoveryCode: '' });
   const [themePreference, setThemePreference] = useState<ThemePreference>(() => readThemePreference());
@@ -264,6 +266,11 @@ export default function App() {
   const refreshAuthorizedDevicesRef = useRef<() => Promise<void>>(async () => {});
   const refreshPendingAuthRequestsRef = useRef<() => Promise<void>>(async () => {});
   const repairAttemptRef = useRef<string>('');
+  const loginScopedBackupRepairAuthRef = useRef<{
+    accessToken: string;
+    masterPasswordHash?: string | null;
+    userVerificationToken?: string | null;
+  } | null>(null);
   const uriChecksumRepairAttemptRef = useRef<string>('');
   const pendingVaultCoreQueryRefreshRef = useRef<Promise<{ data?: VaultCoreSnapshot } | unknown> | null>(null);
   const pendingVaultCoreRefreshRef = useRef<Promise<unknown> | null>(null);
@@ -506,6 +513,14 @@ export default function App() {
   }, [phase, session?.email, location, navigate]);
 
   async function finalizeLogin(login: CompletedLogin) {
+    loginScopedBackupRepairAuthRef.current =
+      login.session.accessToken && (login.freshMasterPasswordHash || login.freshUserVerificationToken)
+        ? {
+            accessToken: login.session.accessToken,
+            masterPasswordHash: login.freshMasterPasswordHash || null,
+            userVerificationToken: login.freshUserVerificationToken || null,
+          }
+        : null;
     setSession(login.session);
     setProfile(login.profile);
     setUnlockPreparing(false);
@@ -1085,6 +1100,15 @@ export default function App() {
     enabled: !IS_DEMO_MODE && phase === 'app' && !!session?.accessToken && vaultInitialDecryptDone,
     staleTime: 30_000,
   });
+
+  async function deriveCurrentMasterPasswordHash(masterPassword: string): Promise<string> {
+    const email = String(profile?.email || session?.email || '').trim().toLowerCase();
+    if (!email) throw new Error(t('txt_profile_unavailable'));
+    const normalizedPassword = String(masterPassword || '');
+    if (!normalizedPassword) throw new Error(t('txt_master_password_is_required'));
+    const derived = await deriveLoginHash(email, normalizedPassword, defaultKdfIterations);
+    return derived.hash;
+  }
   const pendingAuthRequestsQueryKey = useMemo(() => ['auth-requests-pending', vaultCacheKey || session?.email] as const, [vaultCacheKey, session?.email]);
   const pendingAuthRequestsQuery = useQuery({
     queryKey: pendingAuthRequestsQueryKey,
@@ -1096,7 +1120,20 @@ export default function App() {
   });
   const pendingAuthRequests = (pendingAuthRequestsQuery.data || []).filter(isPendingAuthRequest);
   const latestPendingAuthRequest = pendingAuthRequests[0] || null;
-  const authRequestDialogOpen = !!latestPendingAuthRequest && latestPendingAuthRequest.id !== authRequestDialogDismissedId;
+  const selectedPendingAuthRequest = authRequestDialogSelectedId
+    ? pendingAuthRequests.find((request) => request.id === authRequestDialogSelectedId) || null
+    : null;
+  const authRequestDialogRequest = selectedPendingAuthRequest || (
+    latestPendingAuthRequest && latestPendingAuthRequest.id !== authRequestDialogDismissedId
+      ? latestPendingAuthRequest
+      : null
+  );
+  const authRequestDialogOpen = !!authRequestDialogRequest;
+
+  async function beginApproveAuthRequest(authRequest: AuthRequest): Promise<void> {
+    setAuthRequestDialogSelectedId(authRequest.id);
+    setAuthRequestDialogDismissedId(null);
+  }
 
   async function approveAuthRequest(authRequest: AuthRequest): Promise<void> {
     if (!session) throw new Error(t('txt_vault_key_unavailable'));
@@ -1110,6 +1147,7 @@ export default function App() {
         requestApproved: true,
       });
       setAuthRequestDialogDismissedId(null);
+      setAuthRequestDialogSelectedId(null);
       pushToast('success', t('txt_auth_request_approved'));
       await pendingAuthRequestsQuery.refetch();
     } finally {
@@ -1125,6 +1163,7 @@ export default function App() {
         requestApproved: false,
       });
       setAuthRequestDialogDismissedId(null);
+      setAuthRequestDialogSelectedId(null);
       pushToast('success', t('txt_auth_request_denied'));
       await pendingAuthRequestsQuery.refetch();
     } finally {
@@ -1189,13 +1228,25 @@ export default function App() {
     if (!isAdminProfile(profile)) return;
     if (repairAttemptRef.current === session.accessToken) return;
 
+    const loginScopedRepairAuth = loginScopedBackupRepairAuthRef.current?.accessToken === session.accessToken
+      ? loginScopedBackupRepairAuthRef.current
+      : null;
     repairAttemptRef.current = session.accessToken;
-    void silentlyRepairBackupSettingsIfNeeded(session, profile);
+    void (async () => {
+      try {
+        await silentlyRepairBackupSettingsIfNeeded(session, profile, loginScopedRepairAuth);
+      } finally {
+        if (loginScopedBackupRepairAuthRef.current?.accessToken === session.accessToken) {
+          loginScopedBackupRepairAuthRef.current = null;
+        }
+      }
+    })();
   }, [phase, session?.accessToken, session?.symEncKey, session?.symMacKey, profile, vaultInitialDecryptDone]);
 
   useEffect(() => {
     if (session?.accessToken) return;
     repairAttemptRef.current = '';
+    loginScopedBackupRepairAuthRef.current = null;
     uriChecksumRepairAttemptRef.current = '';
   }, [session?.accessToken]);
 
@@ -1950,8 +2001,8 @@ export default function App() {
     sendUploadPercent: vaultSendActions.sendUploadPercent,
     onChangePassword: accountSecurityActions.changePassword,
     onSavePasswordHint: accountSecurityActions.savePasswordHint,
-    onEnableTotp: async (secret: string, token: string) => {
+    onEnableTotp: async (secret: string, token: string, masterPassword: string) => {
-      await accountSecurityActions.enableTotp(secret, token);
+      await accountSecurityActions.enableTotp(secret, token, masterPassword);
       await totpStatusQuery.refetch();
     },
     onOpenDisableTotp: () => setDisableTotpOpen(true),
@@ -1967,7 +2018,7 @@ export default function App() {
     onRefreshPendingAuthRequests: async () => {
       await pendingAuthRequestsQuery.refetch();
     },
-    onApproveAuthRequest: approveAuthRequest,
+    onApproveAuthRequest: beginApproveAuthRequest,
     onDenyAuthRequest: denyAuthRequest,
     onLockTimeoutChange: setLockTimeoutMinutes,
     onSessionTimeoutActionChange: setSessionTimeoutAction,
@@ -1992,22 +2043,50 @@ export default function App() {
     onLoadAuditLogSettings: () => getAuditLogSettings(authedFetch),
     onSaveAuditLogSettings: (settings: AuditLogSettings) => saveAuditLogSettings(authedFetch, settings),
     onClearAuditLogs: () => clearAuditLogs(authedFetch),
-    onExportBackup: backupActions.exportBackup,
+    onExportBackup: async (masterPassword: string, includeAttachments?: boolean) => {
-    onImportBackup: backupActions.importBackup,
+      const hash = await deriveCurrentMasterPasswordHash(masterPassword);
-    onImportBackupAllowingChecksumMismatch: backupActions.importBackupAllowingChecksumMismatch,
+      return backupActions.exportBackup(hash, includeAttachments);
+    },
+    onImportBackup: async (masterPassword: string, file: File, replaceExisting?: boolean) => {
+      const hash = await deriveCurrentMasterPasswordHash(masterPassword);
+      return backupActions.importBackup(hash, file, replaceExisting);
+    },
+    onImportBackupAllowingChecksumMismatch: async (masterPassword: string, file: File, replaceExisting?: boolean) => {
+      const hash = await deriveCurrentMasterPasswordHash(masterPassword);
+      return backupActions.importBackupAllowingChecksumMismatch(hash, file, replaceExisting);
+    },
     onLoadBackupSettings: () => queryClient.ensureQueryData({
       queryKey: ['admin-backup-settings', vaultCacheKey],
       queryFn: () => backupActions.loadSettings(),
       staleTime: 30_000,
     }),
-    onSaveBackupSettings: backupActions.saveSettings,
+    onSaveBackupSettings: async (masterPassword: string, settings: AdminBackupSettings) => {
-    onRunRemoteBackup: backupActions.runRemoteBackup,
+      const hash = await deriveCurrentMasterPasswordHash(masterPassword);
+      const saved = await backupActions.saveSettings(hash, settings);
+      queryClient.setQueryData(['admin-backup-settings', vaultCacheKey], saved);
+      return saved;
+    },
+    onRunRemoteBackup: async (masterPassword: string, destinationId?: string | null) => {
+      const hash = await deriveCurrentMasterPasswordHash(masterPassword);
+      const result = await backupActions.runRemoteBackup(hash, destinationId);
+      queryClient.setQueryData(['admin-backup-settings', vaultCacheKey], result.settings);
+      return result;
+    },
     onListRemoteBackups: backupActions.listRemoteBackups,
-    onDownloadRemoteBackup: backupActions.downloadRemoteBackup,
+    onDownloadRemoteBackup: async (masterPassword: string, destinationId: string, path: string, onProgress?: (percent: number | null) => void) => {
+      const hash = await deriveCurrentMasterPasswordHash(masterPassword);
+      return backupActions.downloadRemoteBackup(hash, destinationId, path, onProgress);
+    },
     onInspectRemoteBackup: backupActions.inspectRemoteBackup,
     onDeleteRemoteBackup: backupActions.deleteRemoteBackup,
-    onRestoreRemoteBackup: backupActions.restoreRemoteBackup,
+    onRestoreRemoteBackup: async (masterPassword: string, destinationId: string, path: string, replaceExisting?: boolean) => {
-    onRestoreRemoteBackupAllowingChecksumMismatch: backupActions.restoreRemoteBackupAllowingChecksumMismatch,
+      const hash = await deriveCurrentMasterPasswordHash(masterPassword);
+      return backupActions.restoreRemoteBackup(hash, destinationId, path, replaceExisting);
+    },
+    onRestoreRemoteBackupAllowingChecksumMismatch: async (masterPassword: string, destinationId: string, path: string, replaceExisting?: boolean) => {
+      const hash = await deriveCurrentMasterPasswordHash(masterPassword);
+      return backupActions.restoreRemoteBackupAllowingChecksumMismatch(hash, destinationId, path, replaceExisting);
+    },
   };
   const effectiveMainRoutesProps = IS_DEMO_MODE
     ? createDemoMainRoutesProps(mainRoutesProps, pushToast, {
@@ -2215,21 +2294,24 @@ export default function App() {
       />
       <AuthRequestApprovalDialog
         open={authRequestDialogOpen}
-        authRequest={latestPendingAuthRequest}
+        authRequest={authRequestDialogRequest}
         submitting={!!authRequestSubmittingId}
         onApprove={() => {
-          if (!latestPendingAuthRequest) return;
+          if (!authRequestDialogRequest) return;
-          void approveAuthRequest(latestPendingAuthRequest).catch((error) => {
+          void approveAuthRequest(authRequestDialogRequest).catch((error) => {
             pushToast('error', error instanceof Error ? error.message : t('txt_auth_request_update_failed'));
           });
         }}
         onDeny={() => {
-          if (!latestPendingAuthRequest) return;
+          if (!authRequestDialogRequest) return;
-          void denyAuthRequest(latestPendingAuthRequest).catch((error) => {
+          void denyAuthRequest(authRequestDialogRequest).catch((error) => {
             pushToast('error', error instanceof Error ? error.message : t('txt_auth_request_update_failed'));
           });
         }}
-        onClose={() => setAuthRequestDialogDismissedId(latestPendingAuthRequest?.id || null)}
+        onClose={() => {
+          setAuthRequestDialogSelectedId(null);
+          setAuthRequestDialogDismissedId(authRequestDialogRequest?.id || null);
+        }}
       />
     </>
   );

webapp/src/components/AppMainRoutes.tsx

@@ -107,7 +107,7 @@ export interface AppMainRoutesProps {
   sendUploadPercent: number | null;
   onChangePassword: (currentPassword: string, nextPassword: string, nextPassword2: string) => Promise<void>;
   onSavePasswordHint: (masterPasswordHint: string) => Promise<void>;
-  onEnableTotp: (secret: string, token: string) => Promise<void>;
+  onEnableTotp: (secret: string, token: string, masterPassword: string) => Promise<void>;
   onOpenDisableTotp: () => void;
   onGetRecoveryCode: (masterPassword: string) => Promise<string>;
   onGetApiKey: (masterPassword: string) => Promise<string>;
@@ -142,18 +142,18 @@ export interface AppMainRoutesProps {
   onLoadAuditLogSettings: () => Promise<AuditLogSettings>;
   onSaveAuditLogSettings: (settings: AuditLogSettings) => Promise<AuditLogSettings>;
   onClearAuditLogs: () => Promise<number>;
-  onExportBackup: (includeAttachments?: boolean) => Promise<void>;
+  onExportBackup: (masterPassword: string, includeAttachments?: boolean) => Promise<void>;
-  onImportBackup: (file: File, replaceExisting?: boolean) => Promise<AdminBackupImportResponse>;
+  onImportBackup: (masterPassword: string, file: File, replaceExisting?: boolean) => Promise<AdminBackupImportResponse>;
-  onImportBackupAllowingChecksumMismatch: (file: File, replaceExisting?: boolean) => Promise<AdminBackupImportResponse>;
+  onImportBackupAllowingChecksumMismatch: (masterPassword: string, file: File, replaceExisting?: boolean) => Promise<AdminBackupImportResponse>;
   onLoadBackupSettings: () => Promise<AdminBackupSettings>;
-  onSaveBackupSettings: (settings: AdminBackupSettings) => Promise<AdminBackupSettings>;
+  onSaveBackupSettings: (masterPassword: string, settings: AdminBackupSettings) => Promise<AdminBackupSettings>;
-  onRunRemoteBackup: (destinationId?: string | null) => Promise<AdminBackupRunResponse>;
+  onRunRemoteBackup: (masterPassword: string, destinationId?: string | null) => Promise<AdminBackupRunResponse>;
   onListRemoteBackups: (destinationId: string, path: string) => Promise<RemoteBackupBrowserResponse>;
-  onDownloadRemoteBackup: (destinationId: string, path: string, onProgress?: (percent: number | null) => void) => Promise<void>;
+  onDownloadRemoteBackup: (masterPassword: string, 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>;
+  onRestoreRemoteBackup: (masterPassword: string, destinationId: string, path: string, replaceExisting?: boolean) => Promise<AdminBackupImportResponse>;
-  onRestoreRemoteBackupAllowingChecksumMismatch: (destinationId: string, path: string, replaceExisting?: boolean) => Promise<AdminBackupImportResponse>;
+  onRestoreRemoteBackupAllowingChecksumMismatch: (masterPassword: string, destinationId: string, path: string, replaceExisting?: boolean) => Promise<AdminBackupImportResponse>;
 }
 
 export default function AppMainRoutes(props: AppMainRoutesProps) {
@@ -275,11 +275,6 @@ export default function AppMainRoutes(props: AppMainRoutesProps) {
                 onCreateAccountPasskey={props.onCreateAccountPasskey}
                 onEnableAccountPasskeyDirectUnlock={props.onEnableAccountPasskeyDirectUnlock}
                 onDeleteAccountPasskey={props.onDeleteAccountPasskey}
-                pendingAuthRequests={props.pendingAuthRequests}
-                pendingAuthRequestsLoading={props.pendingAuthRequestsLoading}
-                onRefreshPendingAuthRequests={props.onRefreshPendingAuthRequests}
-                onApproveAuthRequest={props.onApproveAuthRequest}
-                onDenyAuthRequest={props.onDenyAuthRequest}
                 onLockTimeoutChange={props.onLockTimeoutChange}
                 onSessionTimeoutActionChange={props.onSessionTimeoutActionChange}
                 onNotify={props.onNotify}

webapp/src/components/BackupCenterPage.tsx

@@ -34,18 +34,18 @@ import { BackupOperationsSidebar } from './backup-center/BackupOperationsSidebar
 
 interface BackupCenterPageProps {
   currentUserId: string | null;
-  onExport: (includeAttachments?: boolean) => Promise<void>;
+  onExport: (masterPassword: string, includeAttachments?: boolean) => Promise<void>;
-  onImport: (file: File, replaceExisting?: boolean) => Promise<AdminBackupImportResponse>;
+  onImport: (masterPassword: string, file: File, replaceExisting?: boolean) => Promise<AdminBackupImportResponse>;
-  onImportAllowingChecksumMismatch: (file: File, replaceExisting?: boolean) => Promise<AdminBackupImportResponse>;
+  onImportAllowingChecksumMismatch: (masterPassword: string, file: File, replaceExisting?: boolean) => Promise<AdminBackupImportResponse>;
   onLoadSettings: () => Promise<AdminBackupSettings>;
-  onSaveSettings: (settings: AdminBackupSettings) => Promise<AdminBackupSettings>;
+  onSaveSettings: (masterPassword: string, settings: AdminBackupSettings) => Promise<AdminBackupSettings>;
-  onRunRemoteBackup: (destinationId?: string | null) => Promise<AdminBackupRunResponse>;
+  onRunRemoteBackup: (masterPassword: string, destinationId?: string | null) => Promise<AdminBackupRunResponse>;
   onListRemoteBackups: (destinationId: string, path: string) => Promise<RemoteBackupBrowserResponse>;
-  onDownloadRemoteBackup: (destinationId: string, path: string, onProgress?: (percent: number | null) => void) => Promise<void>;
+  onDownloadRemoteBackup: (masterPassword: string, 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>;
+  onRestoreRemoteBackup: (masterPassword: string, destinationId: string, path: string, replaceExisting?: boolean) => Promise<AdminBackupImportResponse>;
-  onRestoreRemoteBackupAllowingChecksumMismatch: (destinationId: string, path: string, replaceExisting?: boolean) => Promise<AdminBackupImportResponse>;
+  onRestoreRemoteBackupAllowingChecksumMismatch: (masterPassword: string, destinationId: string, path: string, replaceExisting?: boolean) => Promise<AdminBackupImportResponse>;
   onNotify: (type: 'success' | 'error' | 'warning', text: string) => void;
 }
 
@@ -53,6 +53,15 @@ type PendingRestoreIntegrity =
   | { source: 'local'; fileName: string; result: BackupFileIntegrityCheckResult }
   | { source: 'remote'; fileName: string; path: string; result: BackupFileIntegrityCheckResult };
 
+type PendingBackupVerification =
+  | { action: 'export' }
+  | { action: 'saveSettings' }
+  | { action: 'deleteDestination'; destinationId: string; settings: AdminBackupSettings }
+  | { action: 'import'; replaceExisting: boolean; allowChecksumMismatch: boolean; knownIntegrity?: BackupFileIntegrityCheckResult }
+  | { action: 'runRemoteBackup' }
+  | { action: 'downloadRemote'; path: string }
+  | { action: 'restoreRemote'; path: string; replaceExisting: boolean; allowChecksumMismatch: boolean; knownIntegrity?: BackupFileIntegrityCheckResult };
+
 interface BackupProgressPhase {
   titleKey: string;
   detailKey: string;
@@ -193,6 +202,9 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
   const [confirmIntegrityWarningOpen, setConfirmIntegrityWarningOpen] = useState(false);
   const [confirmDeleteDestinationOpen, setConfirmDeleteDestinationOpen] = useState(false);
   const [confirmRemoteDeleteOpen, setConfirmRemoteDeleteOpen] = useState(false);
+  const [pendingBackupVerification, setPendingBackupVerification] = useState<PendingBackupVerification | null>(null);
+  const [backupPasswordValue, setBackupPasswordValue] = useState('');
+  const [backupPasswordSubmitting, setBackupPasswordSubmitting] = useState(false);
   const [pendingRestoreIntegrity, setPendingRestoreIntegrity] = useState<PendingRestoreIntegrity | null>(null);
   const [pendingRemoteRestorePath, setPendingRemoteRestorePath] = useState('');
   const [pendingRemoteDeletePath, setPendingRemoteDeletePath] = useState('');
@@ -209,7 +221,7 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
   const selectedDestination = getDestinationById(settings, selectedDestinationId);
   const savedSelectedDestination = getDestinationById(savedSettings, selectedDestinationId);
   const selectedDestinationIsSaved = !!savedSelectedDestination;
-  const disableWhileBusy = exporting || importing || savingSettings || runningRemoteBackup;
+  const disableWhileBusy = exporting || importing || savingSettings || runningRemoteBackup || backupPasswordSubmitting;
   const currentRemoteBrowserPath = savedSelectedDestination ? (remoteBrowserPathByDestination[savedSelectedDestination.id] || '') : '';
   const currentRemoteBrowserKey = savedSelectedDestination ? getRemoteBrowserCacheKey(savedSelectedDestination.id, currentRemoteBrowserPath) : '';
   const remoteBrowser = currentRemoteBrowserKey ? remoteBrowserCache[currentRemoteBrowserKey] || null : null;
@@ -226,6 +238,18 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
   const recommendedS3Providers = RECOMMENDED_PROVIDERS.filter((provider) => provider.protocol === 's3');
   const canRunSelectedDestination = !!selectedDestination && selectedDestinationIsSaved;
   const canBrowseSelectedDestination = !!savedSelectedDestination;
+  const backupPasswordPromptTitle =
+    pendingBackupVerification?.action === 'export'
+      ? t('txt_backup_export')
+      : pendingBackupVerification?.action === 'saveSettings' || pendingBackupVerification?.action === 'deleteDestination'
+        ? t('txt_backup_save_settings')
+        : pendingBackupVerification?.action === 'runRemoteBackup'
+          ? t('txt_backup_run_manual')
+      : pendingBackupVerification?.action === 'downloadRemote'
+        ? t('txt_backup_remote_download')
+        : pendingBackupVerification?.action === 'restoreRemote'
+          ? t('txt_backup_import')
+          : t('txt_backup_import');
 
   useEffect(() => {
     let cancelled = false;
@@ -478,10 +502,16 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
       destinations: (savedSettings?.destinations || []).filter((destination) => destination.id !== destinationIdToDelete),
     };
 
+    setPendingBackupVerification({ action: 'deleteDestination', destinationId: destinationIdToDelete, settings: nextSettings });
+    setBackupPasswordValue('');
+    setConfirmDeleteDestinationOpen(false);
+  }
+
+  async function executeDeleteDestination(masterPassword: string, destinationIdToDelete: string, payload: AdminBackupSettings) {
     setSavingSettings(true);
     setLocalError('');
     try {
-      const saved = await props.onSaveSettings(nextSettings);
+      const saved = await props.onSaveSettings(masterPassword, payload);
       const nextDraftDestinations = settings.destinations.filter((destination) => destination.id !== destinationIdToDelete);
       const nextSelected = getFirstVisibleDestinationId({ destinations: nextDraftDestinations }) || getFirstVisibleDestinationId(saved);
       setSavedSettings(saved);
@@ -507,11 +537,17 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
   }
 
   async function handleExport() {
+    if (exporting) return;
+    setPendingBackupVerification({ action: 'export' });
+    setBackupPasswordValue('');
+  }
+
+  async function executeExport(masterPassword: string) {
     setLocalError('');
     setExporting(true);
     try {
       startRestoreProgress('backup-export', t('txt_backup_export'), { source: 'local', includeAttachments: exportIncludeAttachments });
-      await props.onExport(exportIncludeAttachments);
+      await props.onExport(masterPassword, exportIncludeAttachments);
       props.onNotify('success', t('txt_backup_export_success'));
     } catch (error) {
       const message = error instanceof Error ? error.message : t('txt_backup_export_failed');
@@ -527,6 +563,28 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
     replaceExisting: boolean,
     allowChecksumMismatch: boolean = false,
     knownIntegrity?: BackupFileIntegrityCheckResult
+  ) {
+    if (importing) return;
+    if (!selectedFile) {
+      const message = t('txt_backup_file_required');
+      setLocalError(message);
+      props.onNotify('error', message);
+      return;
+    }
+    setPendingBackupVerification({
+      action: 'import',
+      replaceExisting,
+      allowChecksumMismatch,
+      knownIntegrity,
+    });
+    setBackupPasswordValue('');
+  }
+
+  async function executeLocalRestore(
+    masterPassword: string,
+    replaceExisting: boolean,
+    allowChecksumMismatch: boolean = false,
+    knownIntegrity?: BackupFileIntegrityCheckResult
   ) {
     if (importing) return;
     if (!selectedFile) {
@@ -547,8 +605,8 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
         delayMs: replaceExisting ? 480 : 1400,
       });
       const result = allowChecksumMismatch
-        ? await props.onImportAllowingChecksumMismatch(selectedFile, replaceExisting)
+        ? await props.onImportAllowingChecksumMismatch(masterPassword, selectedFile, replaceExisting)
-        : await props.onImport(selectedFile, replaceExisting);
+        : await props.onImport(masterPassword, selectedFile, replaceExisting);
       props.onNotify('success', `${buildIntegrityStatusMessage(integrity)} ${t('txt_backup_restore_success_relogin')}`);
       const skippedMessage = buildSkippedImportMessage(result);
       if (skippedMessage) props.onNotify('warning', skippedMessage);
@@ -573,12 +631,18 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
   }
 
   async function handleSaveSettings() {
+    if (savingSettings) return;
+    setPendingBackupVerification({ action: 'saveSettings' });
+    setBackupPasswordValue('');
+  }
+
+  async function executeSaveSettings(masterPassword: string) {
     const payload = buildSettingsPayloadForSelectedDestination();
     const destinationIdToInvalidate = selectedDestinationId;
     setSavingSettings(true);
     setLocalError('');
     try {
-      const saved = await props.onSaveSettings(payload);
+      const saved = await props.onSaveSettings(masterPassword, payload);
       const nextSelected =
         (selectedDestinationId && saved.destinations.some((destination) => destination.id === selectedDestinationId) && selectedDestinationId)
         || getFirstVisibleDestinationId(saved)
@@ -613,6 +677,12 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
   }
 
   async function handleRunRemoteBackup() {
+    if (!selectedDestination || runningRemoteBackup) return;
+    setPendingBackupVerification({ action: 'runRemoteBackup' });
+    setBackupPasswordValue('');
+  }
+
+  async function executeRunRemoteBackup(masterPassword: string) {
     if (!selectedDestination) return;
     setRunningRemoteBackup(true);
     setLocalError('');
@@ -621,7 +691,7 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
         source: 'remote',
         includeAttachments: !!selectedDestination.includeAttachments,
       });
-      const result = await props.onRunRemoteBackup(selectedDestination.id);
+      const result = await props.onRunRemoteBackup(masterPassword, selectedDestination.id);
       setSavedSettings(result.settings);
       setSettings(result.settings);
       setSelectedDestinationId(selectedDestination.id);
@@ -638,12 +708,17 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
   }
 
   async function handleDownloadRemote(path: string) {
+    setPendingBackupVerification({ action: 'downloadRemote', path });
+    setBackupPasswordValue('');
+  }
+
+  async function executeDownloadRemote(masterPassword: string, path: string) {
     if (!savedSelectedDestination) return;
     setDownloadingRemotePath(path);
     setDownloadingRemotePercent(null);
     setLocalError('');
     try {
-      await props.onDownloadRemoteBackup(savedSelectedDestination.id, path, setDownloadingRemotePercent);
+      await props.onDownloadRemoteBackup(masterPassword, savedSelectedDestination.id, path, setDownloadingRemotePercent);
     } catch (error) {
       const message = error instanceof Error ? error.message : t('txt_backup_remote_download_failed');
       setLocalError(message);
@@ -724,6 +799,25 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
     replaceExisting: boolean,
     allowChecksumMismatch: boolean = false,
     knownIntegrity?: BackupFileIntegrityCheckResult
+  ) {
+    if (restoringRemotePath) return;
+    if (!savedSelectedDestination) return;
+    setPendingBackupVerification({
+      action: 'restoreRemote',
+      path,
+      replaceExisting,
+      allowChecksumMismatch,
+      knownIntegrity,
+    });
+    setBackupPasswordValue('');
+  }
+
+  async function executeRemoteRestore(
+    masterPassword: string,
+    path: string,
+    replaceExisting: boolean,
+    allowChecksumMismatch: boolean = false,
+    knownIntegrity?: BackupFileIntegrityCheckResult
   ) {
     if (restoringRemotePath) return;
     if (!savedSelectedDestination) return;
@@ -738,8 +832,8 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
         delayMs: replaceExisting ? 480 : 1400,
       });
       const result = allowChecksumMismatch
-        ? await props.onRestoreRemoteBackupAllowingChecksumMismatch(savedSelectedDestination.id, path, replaceExisting)
+        ? await props.onRestoreRemoteBackupAllowingChecksumMismatch(masterPassword, savedSelectedDestination.id, path, replaceExisting)
-        : await props.onRestoreRemoteBackup(savedSelectedDestination.id, path, replaceExisting);
+        : await props.onRestoreRemoteBackup(masterPassword, savedSelectedDestination.id, path, replaceExisting);
       setConfirmRemoteReplaceOpen(false);
       setPendingRemoteRestorePath('');
       props.onNotify('success', `${buildIntegrityStatusMessage(integrity.result, { remote: true })} ${t('txt_backup_restore_success_relogin')}`);
@@ -762,6 +856,38 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
     }
   }
 
+  async function submitBackupPasswordPrompt(): Promise<void> {
+    const request = pendingBackupVerification;
+    const masterPassword = backupPasswordValue;
+    if (!request || backupPasswordSubmitting) return;
+    if (!masterPassword.trim()) {
+      props.onNotify('error', t('txt_master_password_is_required'));
+      return;
+    }
+    setBackupPasswordSubmitting(true);
+    setPendingBackupVerification(null);
+    setBackupPasswordValue('');
+    try {
+      if (request.action === 'export') {
+        await executeExport(masterPassword);
+      } else if (request.action === 'saveSettings') {
+        await executeSaveSettings(masterPassword);
+      } else if (request.action === 'deleteDestination') {
+        await executeDeleteDestination(masterPassword, request.destinationId, request.settings);
+      } else if (request.action === 'import') {
+        await executeLocalRestore(masterPassword, request.replaceExisting, request.allowChecksumMismatch, request.knownIntegrity);
+      } else if (request.action === 'runRemoteBackup') {
+        await executeRunRemoteBackup(masterPassword);
+      } else if (request.action === 'downloadRemote') {
+        await executeDownloadRemote(masterPassword, request.path);
+      } else if (request.action === 'restoreRemote') {
+        await executeRemoteRestore(masterPassword, request.path, request.replaceExisting, request.allowChecksumMismatch, request.knownIntegrity);
+      }
+    } finally {
+      setBackupPasswordSubmitting(false);
+    }
+  }
+
   return (
     <div className="backup-grid">
       <input
@@ -893,6 +1019,33 @@ export default function BackupCenterPage(props: BackupCenterPageProps) {
         </div>
       ), document.body) : null}
 
+      <ConfirmDialog
+        open={pendingBackupVerification !== null}
+        title={backupPasswordPromptTitle}
+        message={t('txt_enter_master_password_to_continue')}
+        confirmText={t('txt_continue')}
+        cancelText={t('txt_cancel')}
+        confirmDisabled={backupPasswordSubmitting || !backupPasswordValue.trim()}
+        cancelDisabled={backupPasswordSubmitting}
+        onConfirm={() => void submitBackupPasswordPrompt()}
+        onCancel={() => {
+          if (backupPasswordSubmitting) return;
+          setPendingBackupVerification(null);
+          setBackupPasswordValue('');
+        }}
+      >
+        <label className="field">
+          <span>{t('txt_master_password')}</span>
+          <input
+            className="input"
+            type="password"
+            autoComplete="current-password"
+            value={backupPasswordValue}
+            onInput={(event) => setBackupPasswordValue((event.currentTarget as HTMLInputElement).value)}
+          />
+        </label>
+      </ConfirmDialog>
+
       <ConfirmDialog
         open={confirmLocalRestoreOpen}
         title={t('txt_backup_import')}

webapp/src/components/SecurityDevicesPage.tsx

@@ -91,7 +91,7 @@ export default function SecurityDevicesPage(props: SecurityDevicesPageProps) {
         <section className="card">
           <div className="section-head">
             <div>
-            <h3 className="flush-title">{t('txt_device_management')}</h3>
+              <h3 className="flush-title">{t('txt_authorized_devices')}</h3>
               <div className="muted-inline section-note">
                 {t('txt_manage_device_sessions_and_30_day_totp_trusted_sessions')}
               </div>
@@ -111,10 +111,6 @@ export default function SecurityDevicesPage(props: SecurityDevicesPageProps) {
               </button>
             </div>
           </div>
-        </section>
-
-        <section className="card">
-        <h3 className="section-title-flush">{t('txt_authorized_devices')}</h3>
           {!!props.error && (
             <div className="local-error">
               <span>{props.error}</span>

webapp/src/components/SettingsPage.tsx

@@ -2,10 +2,9 @@ import { useEffect, useMemo, useState } from 'preact/hooks';
 import { Clipboard, KeyRound, RefreshCw, ShieldCheck, ShieldOff, Trash2 } from 'lucide-preact';
 import { copyTextToClipboard } from '@/lib/clipboard';
 import qrcode from 'qrcode-generator';
-import type { AccountPasskeyCredential, AuthRequest, Profile } from '@/lib/types';
+import type { AccountPasskeyCredential, Profile } from '@/lib/types';
 import { AVAILABLE_LOCALES, getLocale, setLocale, t, type Locale } from '@/lib/i18n';
 import ConfirmDialog from '@/components/ConfirmDialog';
-import PendingAuthRequestsPanel from '@/components/PendingAuthRequestsPanel';
 
 interface SettingsPageProps {
   profile: Profile;
@@ -14,7 +13,7 @@ interface SettingsPageProps {
   sessionTimeoutAction: 'lock' | 'logout';
   onChangePassword: (currentPassword: string, nextPassword: string, nextPassword2: string) => Promise<void>;
   onSavePasswordHint: (masterPasswordHint: string) => Promise<void>;
-  onEnableTotp: (secret: string, token: string) => Promise<void>;
+  onEnableTotp: (secret: string, token: string, masterPassword: string) => Promise<void>;
   onOpenDisableTotp: () => void;
   onGetRecoveryCode: (masterPassword: string) => Promise<string>;
   onGetApiKey: (masterPassword: string) => Promise<string>;
@@ -23,17 +22,13 @@ interface SettingsPageProps {
   onCreateAccountPasskey: (name: string, masterPassword: string, directUnlock: boolean) => Promise<AccountPasskeyCredential | null>;
   onEnableAccountPasskeyDirectUnlock: (id: string, masterPassword: string) => Promise<void>;
   onDeleteAccountPasskey: (id: string, masterPassword: string) => Promise<void>;
-  pendingAuthRequests: AuthRequest[];
-  pendingAuthRequestsLoading: boolean;
-  onRefreshPendingAuthRequests: () => Promise<void>;
-  onApproveAuthRequest: (request: AuthRequest) => Promise<void>;
-  onDenyAuthRequest: (request: AuthRequest) => Promise<void>;
   onLockTimeoutChange: (minutes: 0 | 1 | 5 | 15 | 30) => void;
   onSessionTimeoutActionChange: (action: 'lock' | 'logout') => void;
   onNotify?: (type: 'success' | 'error' | 'warning', text: string) => void;
 }
 
 type MasterPasswordPromptAction =
+  | 'enableTotp'
   | 'recovery'
   | 'apiKey'
   | 'rotateApiKey'
@@ -141,12 +136,12 @@ export default function SettingsPage(props: SettingsPageProps) {
   }, [props.profile.email, secret]);
 
   async function enableTotp(): Promise<void> {
-    try {
+    if (totpLocked) return;
-      await props.onEnableTotp(secret, token);
+    if (!secret.trim() || !token.trim()) {
-      setTotpLocked(true);
+      props.onNotify?.('error', t('txt_secret_and_code_are_required'));
-    } catch {
+      return;
-      // Keep inputs editable after a failed attempt.
     }
+    openMasterPasswordPrompt('enableTotp');
   }
 
   async function refreshAccountPasskeys(): Promise<void> {
@@ -178,7 +173,10 @@ export default function SettingsPage(props: SettingsPageProps) {
     const masterPassword = masterPasswordPromptValue;
     setMasterPasswordPromptSubmitting(true);
     try {
-      if (masterPasswordPrompt === 'recovery') {
+      if (masterPasswordPrompt === 'enableTotp') {
+        await props.onEnableTotp(secret, token, masterPassword);
+        setTotpLocked(true);
+      } else if (masterPasswordPrompt === 'recovery') {
         const code = await props.onGetRecoveryCode(masterPassword);
         setRecoveryCode(code);
         props.onNotify?.('success', t('txt_recovery_code_loaded'));
@@ -214,7 +212,9 @@ export default function SettingsPage(props: SettingsPageProps) {
   }
 
   const masterPasswordPromptTitle =
-    masterPasswordPrompt === 'recovery'
+    masterPasswordPrompt === 'enableTotp'
+      ? t('txt_enable_totp')
+      : masterPasswordPrompt === 'recovery'
       ? t('txt_view_recovery_code')
       : masterPasswordPrompt === 'rotateApiKey'
         ? t('txt_rotate_api_key')
@@ -509,15 +509,6 @@ export default function SettingsPage(props: SettingsPageProps) {
           )}
         </div>
       </section>
-
-      <PendingAuthRequestsPanel
-        pendingAuthRequests={props.pendingAuthRequests}
-        pendingAuthRequestsLoading={props.pendingAuthRequestsLoading}
-        onRefreshPendingAuthRequests={props.onRefreshPendingAuthRequests}
-        onApproveAuthRequest={props.onApproveAuthRequest}
-        onDenyAuthRequest={props.onDenyAuthRequest}
-      />
-
       <section className="settings-module sensitive-actions-module">
         <div className="sensitive-actions-grid">
           <div className="sensitive-action">

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

@@ -54,21 +54,18 @@ function renderRecommendedProviderDetails(provider: RecommendedProvider) {
         <>
           <div className="backup-recommendation-steps">
             <div className="backup-recommendation-step">
-              <strong>1.</strong> {t('txt_backup_recommend_koofr_step_1')}
+              <strong>1.</strong> {t('txt_backup_recommend_koofr_step_2_prefix')}{' '}
-            </div>
-            <div className="backup-recommendation-step">
-              <strong>2.</strong> {t('txt_backup_recommend_koofr_step_2_prefix')}{' '}
               <a href={provider.passwordUrl} target="_blank" rel="noreferrer">{t('txt_backup_recommend_koofr_password_link')}</a>
               {t('txt_backup_recommend_koofr_step_2_suffix')}
             </div>
             <div className="backup-recommendation-step">
-              <strong>3.</strong> {t('txt_backup_recommend_koofr_step_3')}
+              <strong>2.</strong> {t('txt_backup_recommend_koofr_step_3')}
             </div>
             <div className="backup-recommendation-step">
-              <strong>4.</strong> {t('txt_backup_recommend_koofr_step_4')}
+              <strong>3.</strong> {t('txt_backup_recommend_koofr_step_4')}
             </div>
             <div className="backup-recommendation-step">
-              <strong>5.</strong> {t('txt_backup_recommend_koofr_step_5_prefix')}{' '}
+              <strong>4.</strong> {t('txt_backup_recommend_koofr_step_5_prefix')}{' '}
               <a href={provider.storageUrl} target="_blank" rel="noreferrer">{t('txt_backup_recommend_koofr_storage_link')}</a>
               {t('txt_backup_recommend_koofr_step_5_suffix')}
             </div>
@@ -98,13 +95,10 @@ function renderRecommendedProviderDetails(provider: RecommendedProvider) {
       return (
         <div className="backup-recommendation-steps">
           <div className="backup-recommendation-step">
-            <strong>1.</strong> {t('txt_backup_recommend_pcloud_step_1')}
+            <strong>1.</strong> {t('txt_backup_recommend_pcloud_step_2')}
           </div>
           <div className="backup-recommendation-step">
-            <strong>2.</strong> {t('txt_backup_recommend_pcloud_step_2')}
+            <strong>2.</strong> {t('txt_backup_recommend_pcloud_step_3')}
-          </div>
-          <div className="backup-recommendation-step">
-            <strong>3.</strong> {t('txt_backup_recommend_pcloud_step_3')}
           </div>
         </div>
       );
@@ -112,18 +106,87 @@ function renderRecommendedProviderDetails(provider: RecommendedProvider) {
       return (
         <div className="backup-recommendation-steps">
           <div className="backup-recommendation-step">
-            <strong>1.</strong> {t('txt_backup_recommend_infinicloud_step_1')}
+            <strong>1.</strong> {t('txt_backup_recommend_infinicloud_step_2_prefix')}{' '}
-          </div>
-          <div className="backup-recommendation-step">
-            <strong>2.</strong> {t('txt_backup_recommend_infinicloud_step_2_prefix')}{' '}
             <a href="https://infini-cloud.net/en/modules/mypage/usage/" target="_blank" rel="noreferrer">My Page</a>
             {t('txt_backup_recommend_infinicloud_step_2_suffix')}
           </div>
           <div className="backup-recommendation-step">
-            <strong>3.</strong> {t('txt_backup_recommend_infinicloud_step_3')}
+            <strong>2.</strong> {t('txt_backup_recommend_infinicloud_step_3')}
           </div>
           <div className="backup-recommendation-step">
-            <strong>4.</strong> {t('txt_backup_recommend_infinicloud_step_4')}
+            <strong>3.</strong> {t('txt_backup_recommend_infinicloud_step_4')}
+          </div>
+        </div>
+      );
+    case 'backblaze-b2':
+      return (
+        <div className="backup-recommendation-steps">
+          <div className="backup-recommendation-step">
+            <strong>1.</strong> {t('txt_backup_recommend_backblaze_step_2_prefix')}{' '}
+            <a href={provider.bucketsUrl} target="_blank" rel="noreferrer">Buckets</a>
+            {t('txt_backup_recommend_backblaze_step_2_suffix')}
+          </div>
+          <div className="backup-recommendation-step">
+            <strong>2.</strong> {t('txt_backup_recommend_backblaze_step_3')}
+          </div>
+          <div className="backup-recommendation-step">
+            <strong>3.</strong> {t('txt_backup_recommend_backblaze_step_4_prefix')}{' '}
+            <a href={provider.applicationKeysUrl} target="_blank" rel="noreferrer">Application Keys</a>
+            {t('txt_backup_recommend_backblaze_step_4_suffix')}
+          </div>
+          <div className="backup-recommendation-step">
+            <strong>4.</strong> {t('txt_backup_recommend_backblaze_step_5')}
+          </div>
+          <div className="backup-recommendation-step">
+            <strong>5.</strong> {t('txt_backup_recommend_s3_path_prefix_step')}
+          </div>
+        </div>
+      );
+    case 'cloudflare-r2':
+      return (
+        <div className="backup-recommendation-steps">
+          <div className="backup-recommendation-step">
+            <strong>1.</strong> {t('txt_backup_recommend_cloudflare_r2_step_1_prefix')}{' '}
+            <a href={provider.bucketUrl} target="_blank" rel="noreferrer">{t('txt_backup_recommend_cloudflare_r2_bucket_link')}</a>
+            {t('txt_backup_recommend_cloudflare_r2_step_1_suffix')}
+          </div>
+          <div className="backup-recommendation-step">
+            <strong>2.</strong> {t('txt_backup_recommend_cloudflare_r2_step_2_prefix')}{' '}
+            <a href={provider.apiTokenUrl} target="_blank" rel="noreferrer">{t('txt_backup_recommend_cloudflare_r2_api_link')}</a>
+            {t('txt_backup_recommend_cloudflare_r2_step_2_suffix')}
+          </div>
+          <div className="backup-recommendation-step">
+            <strong>3.</strong> {t('txt_backup_recommend_cloudflare_r2_step_3')}
+          </div>
+          <div className="backup-recommendation-step">
+            <strong>4.</strong> {t('txt_backup_recommend_cloudflare_r2_step_4')}
+          </div>
+          <div className="backup-recommendation-step">
+            <strong>5.</strong> {t('txt_backup_recommend_cloudflare_r2_step_5')}
+          </div>
+        </div>
+      );
+    case 'tigris':
+      return (
+        <div className="backup-recommendation-steps">
+          <div className="backup-recommendation-step">
+            <strong>1.</strong> {t('txt_backup_recommend_tigris_step_2_prefix')}{' '}
+            <a href={provider.bucketUrl} target="_blank" rel="noreferrer">Create Bucket</a>
+            {t('txt_backup_recommend_tigris_step_2_suffix')}
+          </div>
+          <div className="backup-recommendation-step">
+            <strong>2.</strong> {t('txt_backup_recommend_tigris_step_3_prefix')}{' '}
+            <a href={provider.accessKeyUrl} target="_blank" rel="noreferrer">{t('txt_backup_recommend_tigris_access_key_link')}</a>
+            {t('txt_backup_recommend_tigris_step_3_suffix')}
+          </div>
+          <div className="backup-recommendation-step">
+            <strong>3.</strong> {t('txt_backup_recommend_tigris_step_4')}
+          </div>
+          <div className="backup-recommendation-step">
+            <strong>4.</strong> {t('txt_backup_recommend_tigris_step_5')}
+          </div>
+          <div className="backup-recommendation-step">
+            <strong>5.</strong> {t('txt_backup_recommend_s3_path_prefix_step')}
           </div>
         </div>
       );
@@ -147,6 +210,9 @@ export function BackupDestinationDetail(props: BackupDestinationDetailProps) {
               <div className="backup-inline-note">
                 {props.selectedRecommendedProvider.id === 'infinicloud' ? t('txt_backup_recommend_infinicloud_summary')
                   : props.selectedRecommendedProvider.id === 'koofr' ? t('txt_backup_recommend_koofr_summary')
+                    : props.selectedRecommendedProvider.id === 'backblaze-b2' ? t('txt_backup_recommend_backblaze_summary')
+                      : props.selectedRecommendedProvider.id === 'cloudflare-r2' ? t('txt_backup_recommend_cloudflare_r2_summary')
+                        : props.selectedRecommendedProvider.id === 'tigris' ? t('txt_backup_recommend_tigris_summary')
                     : t('txt_backup_recommend_pcloud_summary')}
               </div>
             </div>
@@ -387,7 +453,7 @@ export function BackupDestinationDetail(props: BackupDestinationDetailProps) {
                   className="input"
                   value={(props.selectedDestination.destination as WebDavBackupDestination).remotePath}
                   disabled={props.loadingSettings || props.disableWhileBusy}
-                  placeholder="nodewarden/backups"
+                  placeholder="nodewarden"
                   onInput={(event) => props.onUpdateDestination((destination) => ({
                     ...destination,
                     destination: {
@@ -504,7 +570,7 @@ export function BackupDestinationDetail(props: BackupDestinationDetailProps) {
                   className="input"
                   value={(props.selectedDestination.destination as S3BackupDestination).rootPath}
                   disabled={props.loadingSettings || props.disableWhileBusy}
-                  placeholder="nodewarden/backups"
+                  placeholder=""
                   onInput={(event) => props.onUpdateDestination((destination) => ({
                     ...destination,
                     destination: {

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

@@ -1,9 +1,12 @@
 import { Download, FileUp } from 'lucide-preact';
+import { useEffect, useState } from 'preact/hooks';
 import type { RecommendedProvider } from '@/lib/backup-recommendations';
 import { hasLinkedStorages } from '@/lib/backup-recommendations';
 import { t } from '@/lib/i18n';
 import { BackupIncludeAttachmentsField } from './BackupIncludeAttachmentsField';
 
+const MOBILE_RECOMMENDATIONS_QUERY = '(max-width: 760px)';
+
 interface BackupOperationsSidebarProps {
   disableWhileBusy: boolean;
   exporting: boolean;
@@ -18,7 +21,30 @@ interface BackupOperationsSidebarProps {
   onSelectProvider: (providerId: string) => void;
 }
 
+function getDefaultRecommendationsOpen() {
+  if (typeof window === 'undefined' || typeof window.matchMedia !== 'function') {
+    return true;
+  }
+  return !window.matchMedia(MOBILE_RECOMMENDATIONS_QUERY).matches;
+}
+
 export function BackupOperationsSidebar(props: BackupOperationsSidebarProps) {
+  const [recommendationsOpen, setRecommendationsOpen] = useState(getDefaultRecommendationsOpen);
+  const [recommendationsTouched, setRecommendationsTouched] = useState(false);
+
+  useEffect(() => {
+    if (typeof window === 'undefined' || typeof window.matchMedia !== 'function' || recommendationsTouched) {
+      return;
+    }
+
+    const media = window.matchMedia(MOBILE_RECOMMENDATIONS_QUERY);
+    const syncOpenState = () => setRecommendationsOpen(!media.matches);
+
+    syncOpenState();
+    media.addEventListener('change', syncOpenState);
+    return () => media.removeEventListener('change', syncOpenState);
+  }, [recommendationsTouched]);
+
   return (
     <aside className="backup-operations-sidebar">
       <div className="section-head">
@@ -41,7 +67,14 @@ export function BackupOperationsSidebar(props: BackupOperationsSidebarProps) {
         </button>
       </div>
 
-      <details className="backup-recommendations-disclosure">
+      <details
+        className="backup-recommendations-disclosure"
+        open={recommendationsOpen}
+        onToggle={(event) => {
+          setRecommendationsTouched(true);
+          setRecommendationsOpen((event.currentTarget as HTMLDetailsElement).open);
+        }}
+      >
         <summary className="backup-recommendations-summary">
           <span>
             <strong>{t('txt_backup_recommend_title')}</strong>

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

@@ -1,4 +1,4 @@
-import { Download, FileArchive, FolderOpen, RefreshCw, RotateCcw, Trash2 } from 'lucide-preact';
+import { Download, FileArchive, FolderOpen, FolderUp, RefreshCw, RotateCcw, Trash2 } from 'lucide-preact';
 import type { RemoteBackupBrowserResponse } from '@/lib/api/backup';
 import { formatBytes, formatDateTime, isZipCandidate } from '@/lib/backup-center';
 import { t } from '@/lib/i18n';
@@ -38,14 +38,6 @@ export function RemoteBackupBrowser(props: RemoteBackupBrowserProps) {
 
       <div className="section-head">
         <h3>{t('txt_backup_remote_title')}</h3>
-        {props.canBrowse ? (
-          <div className="actions">
-            <button type="button" className="btn btn-secondary small" disabled={props.loadingRemoteBrowser || props.disableWhileBusy} onClick={props.onRefresh}>
-              <RefreshCw size={14} className="btn-icon" />
-              {t('txt_backup_remote_refresh')}
-            </button>
-          </div>
-        ) : null}
       </div>
 
       {!props.destinationIsSaved ? (
@@ -59,7 +51,8 @@ export function RemoteBackupBrowser(props: RemoteBackupBrowserProps) {
             <span>{props.remoteBrowser.currentPath ? `/${props.remoteBrowser.currentPath}` : '/'}</span>
           </div>
 
-          <div className="actions backup-browser-nav">
+          <div className="backup-browser-nav">
+            <div className="actions backup-browser-nav-left">
               <button type="button" className="btn btn-secondary small" disabled={props.loadingRemoteBrowser || props.disableWhileBusy} onClick={() => props.onShowPath('')}>
                 <FolderOpen size={14} className="btn-icon" />
                 {t('txt_backup_remote_root')}
@@ -70,16 +63,29 @@ export function RemoteBackupBrowser(props: RemoteBackupBrowserProps) {
                 disabled={props.loadingRemoteBrowser || props.disableWhileBusy || props.remoteBrowser.parentPath === null}
                 onClick={() => props.onShowPath(props.remoteBrowser?.parentPath || '')}
               >
-              <RotateCcw size={14} className="btn-icon" />
+                <FolderUp size={14} className="btn-icon" />
                 {t('txt_backup_remote_up')}
               </button>
             </div>
+            {props.canBrowse ? (
+              <button type="button" className="btn btn-secondary small" disabled={props.loadingRemoteBrowser || props.disableWhileBusy} onClick={props.onRefresh}>
+                <RefreshCw size={14} className="btn-icon" />
+                {t('txt_backup_remote_refresh')}
+              </button>
+            ) : null}
+          </div>
 
           {props.loadingRemoteBrowser ? (
             <div className="backup-browser-empty">{t('txt_backup_remote_loading')}</div>
           ) : props.remoteBrowser.items.length ? (
             <>
               <div className="backup-browser-list">
+                <div className="backup-browser-head" aria-hidden="true">
+                  <span>{t('txt_name')}</span>
+                  <span>{t('txt_backup_remote_modified')}</span>
+                  <span>{t('txt_backup_remote_size')}</span>
+                  <span>{t('txt_actions')}</span>
+                </div>
                 {props.visibleItems.map((item) => (
                   <div key={`${item.isDirectory ? 'd' : 'f'}:${item.path}`} className="backup-browser-row">
                     <button
@@ -92,10 +98,12 @@ export function RemoteBackupBrowser(props: RemoteBackupBrowserProps) {
                       {item.isDirectory ? <FolderOpen size={16} className="btn-icon" /> : <FileArchive size={16} className="btn-icon" />}
                       <span className="backup-browser-name">{item.name}</span>
                     </button>
-                    <div className="backup-browser-meta">
+                    <span className="backup-browser-meta backup-browser-modified">
-                      <span>{item.modifiedAt ? formatDateTime(item.modifiedAt) : t('txt_backup_remote_unknown_time')}</span>
+                      {item.modifiedAt ? formatDateTime(item.modifiedAt) : t('txt_backup_remote_unknown_time')}
-                      <span>{item.isDirectory ? t('txt_backup_remote_folder') : formatBytes(item.size)}</span>
+                    </span>
-                    </div>
+                    <span className="backup-browser-meta backup-browser-size">
+                      {item.isDirectory ? t('txt_backup_remote_folder') : formatBytes(item.size)}
+                    </span>
                     <div className="actions backup-browser-actions">
                       {item.isDirectory ? (
                         <button type="button" className="btn btn-secondary small" onClick={() => props.onShowPath(item.path)}>

webapp/src/hooks/useAccountSecurityActions.ts

@@ -145,14 +145,30 @@ export default function useAccountSecurityActions(options: UseAccountSecurityAct
         }
       },
 
-      async enableTotp(secret: string, token: string) {
+      async enableTotp(secret: string, token: string, masterPassword: string) {
+        if (!profile) {
+          const error = new Error(t('txt_profile_unavailable'));
+          onNotify('error', error.message);
+          throw error;
+        }
         if (!secret.trim() || !token.trim()) {
           const error = new Error(t('txt_secret_and_code_are_required'));
           onNotify('error', error.message);
           throw error;
         }
+        if (!masterPassword) {
+          const error = new Error(t('txt_master_password_is_required'));
+          onNotify('error', error.message);
+          throw error;
+        }
         try {
-          await setTotp(authedFetch, { enabled: true, secret: secret.trim(), token: token.trim() });
+          const derived = await deriveLoginHash(profile.email, masterPassword, defaultKdfIterations);
+          await setTotp(authedFetch, {
+            enabled: true,
+            secret: secret.trim(),
+            token: token.trim(),
+            masterPasswordHash: derived.hash,
+          });
           onNotify('success', t('txt_totp_enabled'));
         } catch (error) {
           onNotify('error', error instanceof Error ? error.message : t('txt_enable_totp_failed'));
@@ -218,11 +234,19 @@ export default function useAccountSecurityActions(options: UseAccountSecurityAct
         const normalizedName = String(name || '').trim() || t('txt_account_passkey');
         const derived = await deriveLoginHash(profile.email, normalizedPassword, defaultKdfIterations);
         const options = await getAccountPasskeyAttestationOptions(authedFetch, derived.hash);
-        const pending = await createAccountPasskeyCredential(options);
+        const pending = await createAccountPasskeyCredential(options, directUnlock);
         let keySet = null;
         let savedWithoutDirectUnlock = false;
         if (directUnlock) {
           if (!session?.symEncKey || !session?.symMacKey) throw new Error(t('txt_vault_key_unavailable'));
+          if (!pending.supportsPrf) {
+            const shouldSaveLoginOnly = await confirmSaveLoginOnlyAccountPasskey();
+            if (!shouldSaveLoginOnly) {
+              onNotify('warning', t('txt_account_passkey_not_saved'));
+              return null;
+            }
+            savedWithoutDirectUnlock = true;
+          } else {
             try {
               keySet = await buildAccountPasskeyPrfKeySet(pending, {
                 symEncKey: session.symEncKey,
@@ -238,6 +262,7 @@ export default function useAccountSecurityActions(options: UseAccountSecurityAct
               savedWithoutDirectUnlock = true;
             }
           }
+        }
         const credential = await saveAccountPasskey(authedFetch, {
           name: normalizedName,
           token: pending.token,

webapp/src/hooks/useBackupActions.ts

@@ -27,9 +27,10 @@ export default function useBackupActions(options: UseBackupActionsOptions) {
 
   return useMemo(
     () => ({
-      async exportBackup(includeAttachments: boolean = false) {
+      async exportBackup(masterPasswordHash: string, includeAttachments: boolean = false) {
         const payload = await buildCompleteAdminBackupExport(
           authedFetch,
+          masterPasswordHash,
           includeAttachments,
           async (event: BackupExportClientProgressEvent) => {
             dispatchBackupProgress(event);
@@ -48,14 +49,14 @@ export default function useBackupActions(options: UseBackupActionsOptions) {
         });
       },
 
-      async importBackup(file: File, replaceExisting: boolean = false) {
+      async importBackup(masterPasswordHash: string, file: File, replaceExisting: boolean = false) {
-        const result = await importAdminBackup(authedFetch, file, replaceExisting);
+        const result = await importAdminBackup(authedFetch, masterPasswordHash, file, replaceExisting);
         onImported?.();
         return result;
       },
 
-      async importBackupAllowingChecksumMismatch(file: File, replaceExisting: boolean = false) {
+      async importBackupAllowingChecksumMismatch(masterPasswordHash: string, file: File, replaceExisting: boolean = false) {
-        const result = await importAdminBackup(authedFetch, file, replaceExisting, true);
+        const result = await importAdminBackup(authedFetch, masterPasswordHash, file, replaceExisting, true);
         onImported?.();
         return result;
       },
@@ -64,20 +65,20 @@ export default function useBackupActions(options: UseBackupActionsOptions) {
         return getAdminBackupSettings(authedFetch);
       },
 
-      async saveSettings(settings: Parameters<typeof saveAdminBackupSettings>[1]) {
+      async saveSettings(masterPasswordHash: string, settings: Parameters<typeof saveAdminBackupSettings>[2]) {
-        return saveAdminBackupSettings(authedFetch, settings);
+        return saveAdminBackupSettings(authedFetch, masterPasswordHash, settings);
       },
 
-      async runRemoteBackup(destinationId?: string | null) {
+      async runRemoteBackup(masterPasswordHash: string, destinationId?: string | null) {
-        return runAdminBackupNow(authedFetch, destinationId);
+        return runAdminBackupNow(authedFetch, masterPasswordHash, destinationId);
       },
 
       async listRemoteBackups(destinationId: string, path: string) {
         return listRemoteBackups(authedFetch, destinationId, path);
       },
 
-      async downloadRemoteBackup(destinationId: string, path: string, onProgress?: (percent: number | null) => void) {
+      async downloadRemoteBackup(masterPasswordHash: string, destinationId: string, path: string, onProgress?: (percent: number | null) => void) {
-        const payload = await fetchRemoteBackupPayload(authedFetch, destinationId, path, onProgress);
+        const payload = await fetchRemoteBackupPayload(authedFetch, masterPasswordHash, destinationId, path, onProgress);
         downloadBytesAsFile(payload.bytes, payload.fileName, payload.mimeType);
       },
 
@@ -89,14 +90,14 @@ export default function useBackupActions(options: UseBackupActionsOptions) {
         await deleteRemoteBackup(authedFetch, destinationId, path);
       },
 
-      async restoreRemoteBackup(destinationId: string, path: string, replaceExisting: boolean = false) {
+      async restoreRemoteBackup(masterPasswordHash: string, destinationId: string, path: string, replaceExisting: boolean = false) {
-        const result = await restoreRemoteBackupRequest(authedFetch, destinationId, path, replaceExisting);
+        const result = await restoreRemoteBackupRequest(authedFetch, masterPasswordHash, destinationId, path, replaceExisting);
         onRestored?.();
         return result;
       },
 
-      async restoreRemoteBackupAllowingChecksumMismatch(destinationId: string, path: string, replaceExisting: boolean = false) {
+      async restoreRemoteBackupAllowingChecksumMismatch(masterPasswordHash: string, destinationId: string, path: string, replaceExisting: boolean = false) {
-        const result = await restoreRemoteBackupRequest(authedFetch, destinationId, path, replaceExisting, true);
+        const result = await restoreRemoteBackupRequest(authedFetch, masterPasswordHash, destinationId, path, replaceExisting, true);
         onRestored?.();
         return result;
       },

webapp/src/lib/account-passkeys.ts

@@ -150,6 +150,22 @@ function shouldRetryWithLegacyPrf(error: unknown): boolean {
   return name === 'NotSupportedError' || name === 'SyntaxError' || name === 'TypeError';
 }
 
+function shouldRetryCreateWithoutPrf(error: unknown): boolean {
+  const name = error instanceof DOMException || error instanceof Error ? error.name : '';
+  const message = error instanceof DOMException || error instanceof Error ? error.message : '';
+  return (
+    name === 'NotSupportedError' ||
+    name === 'SyntaxError' ||
+    name === 'TypeError' ||
+    (name === 'UnknownError' && /transient/i.test(message))
+  );
+}
+
+async function canRequestPrfExtension(): Promise<boolean> {
+  if (/\bFirefox\//i.test(navigator.userAgent)) return false;
+  return true;
+}
+
 async function getPublicKeyCredentialWithPrf(
   options: PublicKeyCredentialRequestOptions,
   salt: Uint8Array,
@@ -265,17 +281,38 @@ export async function assertAccountPasskey(
 }
 
 export async function createAccountPasskeyCredential(
-  response: { options: unknown; token: string }
+  response: { options: unknown; token: string },
+  requestPrf: boolean = false
 ): Promise<PendingAccountPasskeyCredential> {
   if (!window.PublicKeyCredential || !navigator.credentials) {
     throw new Error(t('txt_passkey_browser_not_supported'));
   }
   const nativeOptions = cloneCreationOptions(response.options);
-  (nativeOptions as any).extensions = {
+  const createWithOptions = async (options: PublicKeyCredentialCreationOptions): Promise<PublicKeyCredential> => {
+    const credential = await navigator.credentials.create({ publicKey: options });
+    if (!(credential instanceof PublicKeyCredential)) {
+      throw new Error(t('txt_no_passkey_created'));
+    }
+    return credential;
+  };
+  let credential: PublicKeyCredential;
+  if (requestPrf && await canRequestPrfExtension()) {
+    const prfOptions: PublicKeyCredentialCreationOptions = {
+      ...nativeOptions,
+      extensions: {
         ...((nativeOptions as any).extensions || {}),
         prf: {},
+      } as any,
     };
-  const credential = await navigator.credentials.create({ publicKey: nativeOptions });
+    try {
+      credential = await createWithOptions(prfOptions);
+    } catch (error) {
+      if (!shouldRetryCreateWithoutPrf(error)) throw error;
+      credential = await createWithOptions(nativeOptions);
+    }
+  } else {
+    credential = await createWithOptions(nativeOptions);
+  }
   if (!(credential instanceof PublicKeyCredential)) {
     throw new Error(t('txt_no_passkey_created'));
   }

webapp/src/lib/api/backup.ts

@@ -49,6 +49,11 @@ export interface BackupSettingsRepairStateResponse {
   portable: BackupSettingsPortablePayload | null;
 }
 
+export interface BackupUserVerificationPayload {
+  masterPasswordHash?: string | null;
+  userVerificationToken?: string | null;
+}
+
 export interface AdminBackupRunResponse {
   object: 'backup-run';
   result: {
@@ -173,12 +178,13 @@ async function applyBackupFileIntegrityName(fileName: string, bytes: Uint8Array)
 
 export async function exportAdminBackup(
   authedFetch: AuthedFetch,
+  masterPasswordHash: string,
   includeAttachments: boolean = false
 ): Promise<AdminBackupExportPayload> {
   const resp = await authedFetch('/api/admin/backup/export', {
     method: 'POST',
     headers: { 'Content-Type': 'application/json' },
-    body: JSON.stringify({ includeAttachments }),
+    body: JSON.stringify({ includeAttachments, masterPasswordHash }),
   });
   if (!resp.ok) throw new Error(await parseErrorMessage(resp, t('txt_backup_export_failed')));
 
@@ -201,10 +207,11 @@ export async function downloadAdminBackupAttachmentBlob(
 
 export async function buildCompleteAdminBackupExport(
   authedFetch: AuthedFetch,
+  masterPasswordHash: string,
   includeAttachments: boolean = false,
   onProgress?: (event: BackupExportClientProgressEvent) => void | Promise<void>
 ): Promise<AdminBackupExportPayload> {
-  const payload = await exportAdminBackup(authedFetch, includeAttachments);
+  const payload = await exportAdminBackup(authedFetch, masterPasswordHash, includeAttachments);
   if (!includeAttachments) {
     await onProgress?.({
       operation: 'backup-export',
@@ -278,12 +285,13 @@ export async function getAdminBackupSettings(authedFetch: AuthedFetch): Promise<
 
 export async function saveAdminBackupSettings(
   authedFetch: AuthedFetch,
+  masterPasswordHash: string,
   settings: AdminBackupSettings
 ): Promise<AdminBackupSettings> {
   const resp = await authedFetch('/api/admin/backup/settings', {
     method: 'PUT',
     headers: { 'Content-Type': 'application/json' },
-    body: JSON.stringify(settings),
+    body: JSON.stringify({ ...settings, masterPasswordHash }),
   });
   if (!resp.ok) throw new Error(await parseErrorMessage(resp, t('txt_backup_settings_save_failed')));
   const body = await parseJson<AdminBackupSettings>(resp);
@@ -305,12 +313,13 @@ export async function getAdminBackupSettingsRepairState(
 
 export async function repairAdminBackupSettings(
   authedFetch: AuthedFetch,
+  verification: BackupUserVerificationPayload,
   settings: AdminBackupSettings
 ): Promise<AdminBackupSettings> {
   const resp = await authedFetch('/api/admin/backup/settings/repair', {
     method: 'POST',
     headers: { 'Content-Type': 'application/json' },
-    body: JSON.stringify(settings),
+    body: JSON.stringify({ ...settings, ...verification }),
   });
   if (!resp.ok) throw new Error(await parseErrorMessage(resp, t('txt_backup_settings_save_failed')));
   const body = await parseJson<AdminBackupSettings>(resp);
@@ -320,12 +329,13 @@ export async function repairAdminBackupSettings(
 
 export async function runAdminBackupNow(
   authedFetch: AuthedFetch,
+  masterPasswordHash: string,
   destinationId?: string | null
 ): Promise<AdminBackupRunResponse> {
   const resp = await authedFetch('/api/admin/backup/run', {
     method: 'POST',
     headers: { 'Content-Type': 'application/json' },
-    body: JSON.stringify(destinationId ? { destinationId } : {}),
+    body: JSON.stringify(destinationId ? { destinationId, masterPasswordHash } : { masterPasswordHash }),
   });
   if (!resp.ok) throw new Error(await parseErrorMessage(resp, t('txt_backup_remote_run_failed')));
   const body = await parseJson<AdminBackupRunResponse>(resp);
@@ -351,14 +361,16 @@ export async function listRemoteBackups(
 
 export async function downloadRemoteBackup(
   authedFetch: AuthedFetch,
+  masterPasswordHash: string,
   destinationId: string,
   path: string,
   onProgress?: (percent: number | null) => void
 ): Promise<AdminBackupExportPayload> {
-  const params = new URLSearchParams();
+  const resp = await authedFetch('/api/admin/backup/remote/download', {
-  params.set('destinationId', destinationId);
+    method: 'POST',
-  params.set('path', path);
+    headers: { 'Content-Type': 'application/json' },
-  const resp = await authedFetch(`/api/admin/backup/remote/download?${params.toString()}`, { method: 'GET' });
+    body: JSON.stringify({ destinationId, path, masterPasswordHash }),
+  });
   if (!resp.ok) throw new Error(await parseErrorMessage(resp, t('txt_backup_remote_download_failed')));
   const mimeType = String(resp.headers.get('Content-Type') || 'application/zip').trim() || 'application/zip';
   const fileName = parseContentDispositionFileName(resp, 'nodewarden_remote_backup.zip');
@@ -418,6 +430,7 @@ export async function inspectRemoteBackupIntegrity(
 
 export async function restoreRemoteBackup(
   authedFetch: AuthedFetch,
+  masterPasswordHash: string,
   destinationId: string,
   path: string,
   replaceExisting: boolean = false,
@@ -426,7 +439,7 @@ export async function restoreRemoteBackup(
   const resp = await authedFetch('/api/admin/backup/remote/restore', {
     method: 'POST',
     headers: { 'Content-Type': 'application/json' },
-    body: JSON.stringify({ destinationId, path, replaceExisting, allowChecksumMismatch }),
+    body: JSON.stringify({ destinationId, path, replaceExisting, allowChecksumMismatch, masterPasswordHash }),
   });
   if (!resp.ok) throw new Error(await parseErrorMessage(resp, t('txt_backup_remote_restore_failed')));
   const body = await parseJson<AdminBackupImportResponse>(resp);
@@ -436,12 +449,14 @@ export async function restoreRemoteBackup(
 
 export async function importAdminBackup(
   authedFetch: AuthedFetch,
+  masterPasswordHash: string,
   file: File,
   replaceExisting: boolean = false,
   allowChecksumMismatch: boolean = false
 ): Promise<AdminBackupImportResponse> {
   const formData = new FormData();
   formData.set('file', file, file.name || 'nodewarden_backup.zip');
+  formData.set('masterPasswordHash', masterPasswordHash);
   if (replaceExisting) {
     formData.set('replaceExisting', '1');
   }

webapp/src/lib/app-auth.ts

@@ -66,6 +66,12 @@ export interface CompletedLogin {
   session: SessionState;
   profile: Profile;
   profilePromise: Promise<Profile>;
+  freshMasterPasswordHash?: string | null;
+  freshUserVerificationToken?: string | null;
+}
+
+function readTokenUserVerificationToken(token: TokenSuccess): string | null {
+  return String(token.UserVerificationToken || token.userVerificationToken || '').trim() || null;
 }
 
 export type PasswordLoginResult =
@@ -319,7 +325,8 @@ export async function completeLogin(
   token: TokenSuccess,
   email: string,
   masterKey: Uint8Array,
-  fallbackKdfIterations: number
+  fallbackKdfIterations: number,
+  freshMasterPasswordHash?: string | null
 ): Promise<CompletedLogin> {
   const normalizedEmail = email.trim().toLowerCase();
   const fallbackProfile = loadProfileSnapshot(normalizedEmail);
@@ -348,6 +355,8 @@ export async function completeLogin(
     session: { ...baseSession, ...keys },
     profile,
     profilePromise: getProfile(tempFetch),
+    freshMasterPasswordHash: freshMasterPasswordHash || null,
+    freshUserVerificationToken: readTokenUserVerificationToken(token),
   };
 }
 
@@ -360,7 +369,8 @@ async function completeLoginWithVaultKeys(
   token: TokenSuccess,
   email: string,
   keys: { symEncKey: string; symMacKey: string },
-  fallbackKdfIterations: number
+  fallbackKdfIterations: number,
+  freshMasterPasswordHash?: string | null
 ): Promise<CompletedLogin> {
   const normalizedEmail = email.trim().toLowerCase();
   const fallbackProfile = loadProfileSnapshot(normalizedEmail);
@@ -385,6 +395,8 @@ async function completeLoginWithVaultKeys(
     session: { ...baseSession, ...keys },
     profile,
     profilePromise: getProfile(tempFetch),
+    freshMasterPasswordHash: freshMasterPasswordHash || null,
+    freshUserVerificationToken: readTokenUserVerificationToken(token),
   };
 }
 
@@ -400,7 +412,7 @@ export async function performPasswordLogin(
   if ('access_token' in token && token.access_token) {
     return {
       kind: 'success',
-      login: await completeLogin(token, normalizedEmail, derived.masterKey, derived.kdfIterations),
+      login: await completeLogin(token, normalizedEmail, derived.masterKey, derived.kdfIterations, derived.hash),
     };
   }
 
@@ -476,7 +488,7 @@ export async function completePasskeyPasswordLogin(
   password: string
 ): Promise<CompletedLogin> {
   const derived = await deriveLoginHashLocally(pending.email, password, pending.kdfIterations);
-  return completeLogin(pending.token, pending.email, derived.masterKey, pending.kdfIterations);
+  return completeLogin(pending.token, pending.email, derived.masterKey, pending.kdfIterations, derived.hash);
 }
 
 export async function performTotpLogin(
@@ -489,7 +501,7 @@ export async function performTotpLogin(
     rememberDevice,
   });
   if ('access_token' in token && token.access_token) {
-    return completeLogin(token, pendingTotp.email, pendingTotp.masterKey, pendingTotp.kdfIterations);
+    return completeLogin(token, pendingTotp.email, pendingTotp.masterKey, pendingTotp.kdfIterations, pendingTotp.passwordHash);
   }
   const tokenError = token as { error_description?: string; error?: string };
   throw new Error(translateServerError(tokenError.error_description || tokenError.error, t('txt_totp_verify_failed')));
@@ -508,7 +520,7 @@ export async function performRecoverTwoFactorLogin(
 
   if ('access_token' in token && token.access_token) {
     return {
-      login: await completeLogin(token, normalizedEmail, derived.masterKey, derived.kdfIterations),
+      login: await completeLogin(token, normalizedEmail, derived.masterKey, derived.kdfIterations, derived.hash),
       newRecoveryCode: recovered.newRecoveryCode || null,
     };
   }
@@ -557,6 +569,7 @@ export async function performUnlock(
           session: offline.session,
           profile: offline.profile,
           profilePromise: Promise.resolve(offline.profile),
+          freshMasterPasswordHash: null,
         },
       };
     } catch {
@@ -589,7 +602,7 @@ export async function performUnlock(
   if ('access_token' in token && token.access_token) {
     return {
       kind: 'success',
-      login: await completeLogin(token, normalizedEmail, derived.masterKey, derived.kdfIterations),
+      login: await completeLogin(token, normalizedEmail, derived.masterKey, derived.kdfIterations, derived.hash),
     };
   }
 

webapp/src/lib/backup-recommendations.ts

@@ -4,7 +4,7 @@ export interface RecommendedStorageLink {
 }
 
 export interface RecommendedProviderBase {
-  id: 'infinicloud' | 'koofr' | 'pcloud';
+  id: 'infinicloud' | 'koofr' | 'pcloud' | 'backblaze-b2' | 'cloudflare-r2' | 'tigris';
   name: string;
   capacity: string;
   protocol: 'webdav' | 's3';
@@ -28,7 +28,25 @@ export interface PcloudProvider extends RecommendedProviderBase {
   id: 'pcloud';
 }
 
-export type RecommendedProvider = InfinicloudProvider | KoofrProvider | PcloudProvider;
+export interface BackblazeB2Provider extends RecommendedProviderBase {
+  id: 'backblaze-b2';
+  bucketsUrl: string;
+  applicationKeysUrl: string;
+}
+
+export interface CloudflareR2Provider extends RecommendedProviderBase {
+  id: 'cloudflare-r2';
+  bucketUrl: string;
+  apiTokenUrl: string;
+}
+
+export interface TigrisProvider extends RecommendedProviderBase {
+  id: 'tigris';
+  bucketUrl: string;
+  accessKeyUrl: string;
+}
+
+export type RecommendedProvider = InfinicloudProvider | KoofrProvider | PcloudProvider | BackblazeB2Provider | CloudflareR2Provider | TigrisProvider;
 
 export const RECOMMENDED_PROVIDERS: RecommendedProvider[] = [
   {
@@ -61,6 +79,33 @@ export const RECOMMENDED_PROVIDERS: RecommendedProvider[] = [
     signupUrl: 'https://u.pcloud.com/#/register?invite=GITx7ZvEU1N7',
     hasAffiliateLink: true,
   },
+  {
+    id: 'backblaze-b2',
+    name: 'Backblaze B2',
+    capacity: '10G',
+    protocol: 's3',
+    signupUrl: 'https://secure.backblaze.com/user_signin.htm',
+    bucketsUrl: 'https://secure.backblaze.com/b2_buckets.htm',
+    applicationKeysUrl: 'https://secure.backblaze.com/app_keys.htm',
+  },
+  {
+    id: 'cloudflare-r2',
+    name: 'Cloudflare R2',
+    capacity: '10G',
+    protocol: 's3',
+    signupUrl: 'https://dash.cloudflare.com/?to=/:account/r2/new',
+    bucketUrl: 'https://dash.cloudflare.com/?to=/:account/r2/new',
+    apiTokenUrl: 'https://dash.cloudflare.com/?to=/:account/r2/api-tokens/create?type=user',
+  },
+  {
+    id: 'tigris',
+    name: 'Tigris',
+    capacity: '5G',
+    protocol: 's3',
+    signupUrl: 'https://console.storage.dev/signup',
+    bucketUrl: 'https://console.storage.dev/createbucket',
+    accessKeyUrl: 'https://console.storage.dev/createaccesskey',
+  },
 ];
 
 export function hasLinkedStorages(provider: RecommendedProvider): provider is KoofrProvider {

webapp/src/lib/backup-settings-repair.ts

@@ -5,7 +5,8 @@ import type { Profile, SessionState } from './types';
 
 export async function silentlyRepairBackupSettingsIfNeeded(
   activeSession: SessionState,
-  activeProfile: Profile
+  activeProfile: Profile,
+  verification?: { masterPasswordHash?: string | null; userVerificationToken?: string | null } | null
 ): Promise<void> {
   if (activeProfile.role !== 'admin') return;
   if (!activeSession.accessToken || !activeSession.symEncKey || !activeSession.symMacKey) return;
@@ -14,8 +15,9 @@ export async function silentlyRepairBackupSettingsIfNeeded(
   try {
     const state = await getAdminBackupSettingsRepairState(tempFetch);
     if (!state.needsRepair || !state.portable) return;
+    if (!verification?.masterPasswordHash && !verification?.userVerificationToken) return;
     const repairedSettings = await decryptPortableBackupSettings(state.portable, activeProfile, activeSession);
-    await repairAdminBackupSettings(tempFetch, repairedSettings);
+    await repairAdminBackupSettings(tempFetch, verification, repairedSettings);
   } catch (error) {
     console.error('Backup settings auto-repair failed:', error);
   }

webapp/src/lib/demo.ts

@@ -1156,32 +1156,32 @@ export function createDemoMainRoutesProps(base: AppMainRoutesProps, notify: Noti
       notify('success', t('txt_logs_cleared'));
       return 0;
     },
-    onExportBackup: async () => {
+    onExportBackup: async (_masterPassword: string) => {
       notify('success', t('txt_backup_export_success'));
     },
-    onImportBackup: async () => {
+    onImportBackup: async (_masterPassword: string, _file: File, _replaceExisting?: boolean) => {
       resetDemoVaultState(state);
       notify('success', t('txt_backup_import_success_relogin'));
       return createDemoImportBackupResult();
     },
-    onImportBackupAllowingChecksumMismatch: async () => {
+    onImportBackupAllowingChecksumMismatch: async (_masterPassword: string, _file: File, _replaceExisting?: boolean) => {
       resetDemoVaultState(state);
       notify('success', t('txt_backup_import_success_relogin'));
       return createDemoImportBackupResult();
     },
     onLoadBackupSettings: async () => state.backupSettings,
-    onSaveBackupSettings: async (settings) => {
+    onSaveBackupSettings: async (_masterPassword: string, settings) => {
       const next = cloneJson(settings);
       state.setBackupSettings(next);
       notify('success', t('txt_backup_settings_saved'));
       return next;
     },
-    onRunRemoteBackup: async (destinationId?: string | null) => {
+    onRunRemoteBackup: async (_masterPassword: string, destinationId?: string | null) => {
       notify('success', t('txt_backup_remote_run_success'));
       return createDemoBackupRun(state.backupSettings, destinationId);
     },
     onListRemoteBackups: async (destinationId: string, path: string) => createDemoRemoteBrowser(destinationId, path),
-    onDownloadRemoteBackup: async () => {
+    onDownloadRemoteBackup: async (_masterPassword: string, _destinationId: string, _path: string, _onProgress?: (percent: number | null) => void) => {
       notify('success', t('txt_demo_download_prepared'));
     },
     onInspectRemoteBackup: async (_destinationId: string, path: string) => ({
@@ -1199,13 +1199,13 @@ export function createDemoMainRoutesProps(base: AppMainRoutesProps, notify: Noti
     onDeleteRemoteBackup: async () => {
       notify('success', t('txt_backup_remote_delete_success'));
     },
-    onRestoreRemoteBackup: async (_destinationId, path) => {
+    onRestoreRemoteBackup: async (_masterPassword: string, _destinationId, path) => {
       await runDemoRemoteRestoreProgress(path.split('/').pop() || path || 'nodewarden_backup_demo.zip');
       resetDemoVaultState(state);
       notify('success', t('txt_backup_remote_restore_completed_verified'));
       return createDemoImportBackupResult();
     },
-    onRestoreRemoteBackupAllowingChecksumMismatch: async (_destinationId, path) => {
+    onRestoreRemoteBackupAllowingChecksumMismatch: async (_masterPassword: string, _destinationId, path) => {
       await runDemoRemoteRestoreProgress(path.split('/').pop() || path || 'nodewarden_backup_demo.zip');
       resetDemoVaultState(state);
       notify('success', t('txt_backup_remote_restore_completed_verified'));

webapp/src/lib/i18n/locales/en.ts

@@ -85,6 +85,37 @@ const en: Record<string, string> = {
   "txt_backup_recommend_pcloud_step_1": "Register a pCloud account with just your email address.",
   "txt_backup_recommend_pcloud_step_2": "Use https://webdav.pcloud.com/ as the WebDAV server URL.",
   "txt_backup_recommend_pcloud_step_3": "Use your registration email as the WebDAV username and your account password as the WebDAV password.",
+  "txt_backup_recommend_backblaze_summary": "S3-compatible object storage with 10 GB free and no credit card required.",
+  "txt_backup_recommend_backblaze_step_1": "Register or sign in to a Backblaze account.",
+  "txt_backup_recommend_backblaze_step_2_prefix": "Open",
+  "txt_backup_recommend_backblaze_step_2_suffix": ", click Create a Bucket, enter only the bucket name, leave the other settings unchanged, and create it.",
+  "txt_backup_recommend_backblaze_step_3": "After creation, put the displayed Endpoint into S3 Endpoint URL, use the bucket name for Bucket Name, and use the middle segment of the endpoint, such as us-west-004, for Region.",
+  "txt_backup_recommend_backblaze_step_4_prefix": "Open",
+  "txt_backup_recommend_backblaze_step_4_suffix": ", click Add a New Application Key, enter any Name of Key, leave the other settings unchanged, and create it.",
+  "txt_backup_recommend_backblaze_step_5": "Use keyID as the access key and applicationKey as the secret key.",
+  "txt_backup_recommend_cloudflare_r2_summary": "S3-compatible object storage with 10 GB free, but it requires credit card verification.",
+  "txt_backup_recommend_cloudflare_r2_bucket_link": "Create bucket page",
+  "txt_backup_recommend_cloudflare_r2_api_link": "API token page",
+  "txt_backup_recommend_cloudflare_r2_step_1_prefix": "Open the",
+  "txt_backup_recommend_cloudflare_r2_step_1_suffix": ", enter only the bucket name, and create it directly.",
+  "txt_backup_recommend_cloudflare_r2_step_2_prefix": "Open the",
+  "txt_backup_recommend_cloudflare_r2_step_2_suffix": ", select Object Read & Write for permissions, and create it directly.",
+  "txt_backup_recommend_cloudflare_r2_step_3": "Ignore the token value after creation. Fill Access Key ID into Access ID, and Secret Access Key into Access Password.",
+  "txt_backup_recommend_cloudflare_r2_step_4": "Copy the address shown below into S3 Endpoint URL, fill Bucket Name exactly as shown, and leave Region as auto.",
+  "txt_backup_recommend_cloudflare_r2_step_5": "Set Path Prefix as needed, for example nodewarden, or leave it empty if you do not want a folder prefix.",
+  "txt_backup_recommend_s3_path_prefix_step": "Set Path Prefix as needed, for example nodewarden, or leave it empty if you do not want a folder prefix.",
+  "txt_backup_recommend_tigris_summary": "S3-compatible object storage with 5 GB free and no credit card required.",
+  "txt_backup_recommend_tigris_signup_link": "signup page",
+  "txt_backup_recommend_tigris_bucket_link": "Create Bucket page",
+  "txt_backup_recommend_tigris_access_key_link": "Create Access Key page",
+  "txt_backup_recommend_tigris_step_1_prefix": "Open the",
+  "txt_backup_recommend_tigris_step_1_suffix": ", sign up, and log in to Tigris.",
+  "txt_backup_recommend_tigris_step_2_prefix": "Open",
+  "txt_backup_recommend_tigris_step_2_suffix": ", enter only the bucket name, leave everything else unchanged, and create it.",
+  "txt_backup_recommend_tigris_step_3_prefix": "Then open the",
+  "txt_backup_recommend_tigris_step_3_suffix": ", use any name you like, and create it.",
+  "txt_backup_recommend_tigris_step_4": "Ignore Endpoint URL IAM after creation. Fill the other displayed values into the backup page using the matching field names.",
+  "txt_backup_recommend_tigris_step_5": "Finally, click Manage Key Permissions and turn on Admin Access, otherwise writing backups will fail.",
   "txt_backup_add_destination": "Add Destination",
   "txt_backup_schedule_panel_title": "Automatic Schedule",
   "txt_backup_schedule_panel_note": "Each destination can keep its own daily backup schedule.",
@@ -197,6 +228,8 @@ const en: Record<string, string> = {
   "txt_backup_remote_folder": "Folder",
   "txt_backup_remote_unknown_time": "Unknown time",
   "txt_backup_remote_current_path": "Current Folder",
+  "txt_backup_remote_modified": "Modified",
+  "txt_backup_remote_size": "Size",
   "txt_backup_remote_load_failed": "Loading remote backups failed",
   "txt_backup_remote_invalid_response": "Invalid remote backup response",
   "txt_backup_remote_download_failed": "Downloading remote backup failed",

webapp/src/lib/i18n/locales/es.ts

@@ -85,6 +85,37 @@ const es: Record<string, string> = {
   "txt_backup_recommend_pcloud_step_1": "Registre una cuenta pCloud solo con su dirección de correo.",
   "txt_backup_recommend_pcloud_step_2": "Use https://webdav.pcloud.com/ como URL del servidor WebDAV.",
   "txt_backup_recommend_pcloud_step_3": "Use su correo de registro como nombre de usuario WebDAV y su contraseña de cuenta como contraseña WebDAV.",
+  "txt_backup_recommend_backblaze_summary": "Almacenamiento de objetos compatible con S3 con 10 GB gratis y sin tarjeta de crédito.",
+  "txt_backup_recommend_backblaze_step_1": "Registre o inicie sesión en una cuenta de Backblaze.",
+  "txt_backup_recommend_backblaze_step_2_prefix": "Abra",
+  "txt_backup_recommend_backblaze_step_2_suffix": ", haga clic en Create a Bucket, introduzca solo el nombre del bucket, deje lo demás sin cambios y créelo.",
+  "txt_backup_recommend_backblaze_step_3": "Después de crearlo, ponga el Endpoint mostrado en S3 Endpoint URL, use el nombre del bucket en Bucket Name y la parte central del endpoint, como us-west-004, en Region.",
+  "txt_backup_recommend_backblaze_step_4_prefix": "Abra",
+  "txt_backup_recommend_backblaze_step_4_suffix": ", haga clic en Add a New Application Key, introduzca cualquier Name of Key, deje lo demás sin cambios y créelo.",
+  "txt_backup_recommend_backblaze_step_5": "Use keyID como clave de acceso y applicationKey como clave secreta.",
+  "txt_backup_recommend_cloudflare_r2_summary": "Almacenamiento de objetos compatible con S3 con 10 GB gratis, pero requiere verificación con tarjeta de crédito.",
+  "txt_backup_recommend_cloudflare_r2_bucket_link": "página para crear bucket",
+  "txt_backup_recommend_cloudflare_r2_api_link": "página de token API",
+  "txt_backup_recommend_cloudflare_r2_step_1_prefix": "Abra la",
+  "txt_backup_recommend_cloudflare_r2_step_1_suffix": ", introduzca solo el nombre del bucket y créelo directamente.",
+  "txt_backup_recommend_cloudflare_r2_step_2_prefix": "Abra la",
+  "txt_backup_recommend_cloudflare_r2_step_2_suffix": ", seleccione Object Read & Write en permisos y créelo directamente.",
+  "txt_backup_recommend_cloudflare_r2_step_3": "Ignore el valor del token después de crearlo. Use Access Key ID como ID de acceso y Secret Access Key como contraseña de acceso.",
+  "txt_backup_recommend_cloudflare_r2_step_4": "Copie la dirección mostrada abajo en S3 Endpoint URL, rellene Bucket Name tal como aparece y deje Region en auto.",
+  "txt_backup_recommend_cloudflare_r2_step_5": "Configure Path Prefix si lo necesita, por ejemplo nodewarden, o déjelo vacío si no quiere un prefijo de carpeta.",
+  "txt_backup_recommend_s3_path_prefix_step": "Configure Path Prefix si lo necesita, por ejemplo nodewarden, o déjelo vacío si no quiere un prefijo de carpeta.",
+  "txt_backup_recommend_tigris_summary": "Almacenamiento de objetos compatible con S3 con 5 GB gratis y sin tarjeta de crédito.",
+  "txt_backup_recommend_tigris_signup_link": "página de registro",
+  "txt_backup_recommend_tigris_bucket_link": "página Create Bucket",
+  "txt_backup_recommend_tigris_access_key_link": "página Create Access Key",
+  "txt_backup_recommend_tigris_step_1_prefix": "Abra la",
+  "txt_backup_recommend_tigris_step_1_suffix": ", regístrese e inicie sesión en Tigris.",
+  "txt_backup_recommend_tigris_step_2_prefix": "Abra",
+  "txt_backup_recommend_tigris_step_2_suffix": ", introduzca solo el nombre del bucket, deje todo lo demás sin cambios y créelo.",
+  "txt_backup_recommend_tigris_step_3_prefix": "Luego abra la",
+  "txt_backup_recommend_tigris_step_3_suffix": ", use cualquier nombre y créela.",
+  "txt_backup_recommend_tigris_step_4": "Ignore Endpoint URL IAM después de crearla. Rellene los demás valores mostrados en la página de copia de seguridad usando los nombres correspondientes.",
+  "txt_backup_recommend_tigris_step_5": "Por último, haga clic en Manage Key Permissions y active Admin Access; de lo contrario, no podrá escribir copias de seguridad.",
   "txt_backup_add_destination": "Añadir destino",
   "txt_backup_schedule_panel_title": "Programación automática",
   "txt_backup_schedule_panel_note": "Cada destino puede mantener su propia programación de copia de seguridad diaria.",
@@ -197,6 +228,8 @@ const es: Record<string, string> = {
   "txt_backup_remote_folder": "Carpeta",
   "txt_backup_remote_unknown_time": "Hora desconocida",
   "txt_backup_remote_current_path": "Carpeta actual",
+  "txt_backup_remote_modified": "Modificado",
+  "txt_backup_remote_size": "Tamaño",
   "txt_backup_remote_load_failed": "Error al cargar copias de seguridad remotas",
   "txt_backup_remote_invalid_response": "Respuesta de copia de seguridad remota no válida",
   "txt_backup_remote_download_failed": "Error al descargar copia de seguridad remota",

webapp/src/lib/i18n/locales/ru.ts

@@ -86,6 +86,37 @@ const ru: Record<string, string> = {
   "txt_backup_recommend_pcloud_step_1": "Зарегистрируйте учетную запись pCloud, используя только свой адрес электронной почты.",
   "txt_backup_recommend_pcloud_step_2": "Используйте https://webdav.ploud.com/ в качестве URL-адреса сервера WebDAV.",
   "txt_backup_recommend_pcloud_step_3": "Используйте свой регистрационный адрес электронной почты в качестве имени пользователя WebDAV и пароль своей учетной записи в качестве пароля WebDAV.",
+  "txt_backup_recommend_backblaze_summary": "S3-совместимое объектное хранилище с бесплатными 10 ГБ и без кредитной карты.",
+  "txt_backup_recommend_backblaze_step_1": "Зарегистрируйте учетную запись Backblaze или войдите в нее.",
+  "txt_backup_recommend_backblaze_step_2_prefix": "Откройте",
+  "txt_backup_recommend_backblaze_step_2_suffix": ", нажмите Create a Bucket, введите только имя bucket, оставьте остальные настройки без изменений и создайте его.",
+  "txt_backup_recommend_backblaze_step_3": "После создания вставьте показанный Endpoint в S3 Endpoint URL, имя bucket укажите в Bucket Name, а среднюю часть endpoint, например us-west-004, используйте как Region.",
+  "txt_backup_recommend_backblaze_step_4_prefix": "Откройте",
+  "txt_backup_recommend_backblaze_step_4_suffix": ", нажмите Add a New Application Key, введите любое Name of Key, оставьте остальные настройки без изменений и создайте ключ.",
+  "txt_backup_recommend_backblaze_step_5": "Используйте keyID как ключ доступа, а applicationKey как секретный ключ.",
+  "txt_backup_recommend_cloudflare_r2_summary": "S3-совместимое объектное хранилище с бесплатными 10 ГБ, но с обязательной проверкой кредитной карты.",
+  "txt_backup_recommend_cloudflare_r2_bucket_link": "страницу создания bucket",
+  "txt_backup_recommend_cloudflare_r2_api_link": "страницу API token",
+  "txt_backup_recommend_cloudflare_r2_step_1_prefix": "Откройте",
+  "txt_backup_recommend_cloudflare_r2_step_1_suffix": ", введите только имя bucket и сразу создайте его.",
+  "txt_backup_recommend_cloudflare_r2_step_2_prefix": "Откройте",
+  "txt_backup_recommend_cloudflare_r2_step_2_suffix": ", выберите Object Read & Write в разрешениях и сразу создайте токен.",
+  "txt_backup_recommend_cloudflare_r2_step_3": "После создания игнорируйте token value. Введите Access Key ID как ID доступа, а Secret Access Key как пароль доступа.",
+  "txt_backup_recommend_cloudflare_r2_step_4": "Вставьте показанный ниже адрес в S3 Endpoint URL, заполните Bucket Name как показано и оставьте Region в значении auto.",
+  "txt_backup_recommend_cloudflare_r2_step_5": "Укажите Path Prefix при необходимости, например nodewarden, или оставьте пустым, если префикс папки не нужен.",
+  "txt_backup_recommend_s3_path_prefix_step": "Укажите Path Prefix при необходимости, например nodewarden, или оставьте пустым, если префикс папки не нужен.",
+  "txt_backup_recommend_tigris_summary": "S3-совместимое объектное хранилище с бесплатными 5 ГБ и без кредитной карты.",
+  "txt_backup_recommend_tigris_signup_link": "страницу регистрации",
+  "txt_backup_recommend_tigris_bucket_link": "страницу Create Bucket",
+  "txt_backup_recommend_tigris_access_key_link": "страницу Create Access Key",
+  "txt_backup_recommend_tigris_step_1_prefix": "Откройте",
+  "txt_backup_recommend_tigris_step_1_suffix": ", зарегистрируйтесь и войдите в Tigris.",
+  "txt_backup_recommend_tigris_step_2_prefix": "Откройте",
+  "txt_backup_recommend_tigris_step_2_suffix": ", введите только имя bucket, ничего больше не меняйте и создайте его.",
+  "txt_backup_recommend_tigris_step_3_prefix": "Затем откройте",
+  "txt_backup_recommend_tigris_step_3_suffix": ", введите любое имя и создайте ключ.",
+  "txt_backup_recommend_tigris_step_4": "После создания игнорируйте Endpoint URL IAM. Остальные показанные значения заполните на странице резервного копирования по совпадающим названиям полей.",
+  "txt_backup_recommend_tigris_step_5": "В конце нажмите Manage Key Permissions и включите Admin Access, иначе запись резервных копий не будет работать.",
   "txt_backup_add_destination": "Добавить пункт назначения",
   "txt_backup_schedule_panel_title": "Автоматическое расписание",
   "txt_backup_schedule_panel_note": "Каждый пункт назначения может иметь собственный ежедневный график резервного копирования.",
@@ -197,6 +228,8 @@ const ru: Record<string, string> = {
   "txt_backup_remote_folder": "Папка",
   "txt_backup_remote_unknown_time": "Неизвестное время",
   "txt_backup_remote_current_path": "Текущая папка",
+  "txt_backup_remote_modified": "Изменено",
+  "txt_backup_remote_size": "Размер",
   "txt_backup_remote_load_failed": "Не удалось загрузить удаленные резервные копии.",
   "txt_backup_remote_invalid_response": "Неверный ответ удаленного резервного копирования",
   "txt_backup_remote_download_failed": "Не удалось загрузить удаленную резервную копию.",

webapp/src/lib/i18n/locales/zh-CN.ts

@@ -85,6 +85,37 @@ const zhCN: Record<string, string> = {
   "txt_backup_recommend_pcloud_step_1": "先用邮箱注册一个 pCloud 账号。",
   "txt_backup_recommend_pcloud_step_2": "WebDAV 地址填写 https://webdav.pcloud.com/ 。",
   "txt_backup_recommend_pcloud_step_3": "注册邮箱用作 WebDAV 用户名，注册密码用作 WebDAV 密码。",
+  "txt_backup_recommend_backblaze_summary": "兼容 S3 的对象存储，免费容量 10 GB，无需信用卡。",
+  "txt_backup_recommend_backblaze_step_1": "先注册或登录 Backblaze 账号。",
+  "txt_backup_recommend_backblaze_step_2_prefix": "打开",
+  "txt_backup_recommend_backblaze_step_2_suffix": "，点击创建一个桶，只输入桶名字，其他地方不修改，然后创建。",
+  "txt_backup_recommend_backblaze_step_3": "创建后显示的 Endpoint 填到 S3 端点 URL；桶名字填到存储桶名称；区域填 Endpoint 中间那段，例如 us-west-004。",
+  "txt_backup_recommend_backblaze_step_4_prefix": "打开",
+  "txt_backup_recommend_backblaze_step_4_suffix": "，点击 Add a New Application Key，随便输入 Name of Key，其他地方不动，然后创建。",
+  "txt_backup_recommend_backblaze_step_5": "生成结果里的 keyID 填到 访问 ID，applicationKey 填到 访问密码。",
+  "txt_backup_recommend_cloudflare_r2_summary": "兼容 S3 的对象存储，免费容量 10 GB，需要信用卡认证。",
+  "txt_backup_recommend_cloudflare_r2_bucket_link": "创建储存桶页面",
+  "txt_backup_recommend_cloudflare_r2_api_link": "API 创建页面",
+  "txt_backup_recommend_cloudflare_r2_step_1_prefix": "打开",
+  "txt_backup_recommend_cloudflare_r2_step_1_suffix": "，只输入存储桶名称，直接创建。",
+  "txt_backup_recommend_cloudflare_r2_step_2_prefix": "打开",
+  "txt_backup_recommend_cloudflare_r2_step_2_suffix": "，权限全选“对象读和写”，直接创建。",
+  "txt_backup_recommend_cloudflare_r2_step_3": "创建后令牌值不用管；Access Key ID 填到 访问 ID，Secret Access Key 填到 访问密码。",
+  "txt_backup_recommend_cloudflare_r2_step_4": "把下面显示的地址填到 S3 端点 URL；存储桶名称如实填写；区域保持 auto 不改。",
+  "txt_backup_recommend_cloudflare_r2_step_5": "路径前缀按需要填写，例如 nodewarden；不想分目录可以留空。",
+  "txt_backup_recommend_s3_path_prefix_step": "路径前缀按需要填写，例如 nodewarden；不想分目录可以留空。",
+  "txt_backup_recommend_tigris_summary": "兼容 S3 的对象存储。免费容量 5 GB，无需信用卡。",
+  "txt_backup_recommend_tigris_signup_link": "注册页面",
+  "txt_backup_recommend_tigris_bucket_link": "Create Bucket 页面",
+  "txt_backup_recommend_tigris_access_key_link": "Create Access Key 页面",
+  "txt_backup_recommend_tigris_step_1_prefix": "打开",
+  "txt_backup_recommend_tigris_step_1_suffix": "，注册并登录 Tigris。",
+  "txt_backup_recommend_tigris_step_2_prefix": "打开",
+  "txt_backup_recommend_tigris_step_2_suffix": "，只输入桶的名字，其他地方不动，直接创建。",
+  "txt_backup_recommend_tigris_step_3_prefix": "然后打开",
+  "txt_backup_recommend_tigris_step_3_suffix": "，名字随意，直接创建。",
+  "txt_backup_recommend_tigris_step_4": "创建后显示的 Endpoint URL IAM 不用管；其余显示出来的内容按名称填写到备份页面里。",
+  "txt_backup_recommend_tigris_step_5": "最后点击 Manage Key Permissions，把 Admin Access 打开，否则无法写入。",
   "txt_backup_add_destination": "新增地点",
   "txt_backup_schedule_panel_title": "自动备份计划",
   "txt_backup_schedule_panel_note": "每个备份地点都可以单独配置自己的每日自动备份计划。",
@@ -197,6 +228,8 @@ const zhCN: Record<string, string> = {
   "txt_backup_remote_folder": "文件夹",
   "txt_backup_remote_unknown_time": "未知时间",
   "txt_backup_remote_current_path": "当前目录",
+  "txt_backup_remote_modified": "修改时间",
+  "txt_backup_remote_size": "大小",
   "txt_backup_remote_load_failed": "读取远端备份失败",
   "txt_backup_remote_invalid_response": "远端备份响应无效",
   "txt_backup_remote_download_failed": "下载远端备份失败",
@@ -266,15 +299,15 @@ const zhCN: Record<string, string> = {
   "txt_backup_webdav_username": "WebDAV 用户名",
   "txt_backup_webdav_password": "WebDAV 密码",
   "txt_backup_webdav_path": "远程目录",
-  "txt_backup_s3_endpoint": "S3 端点",
+  "txt_backup_s3_endpoint": "S3 端点 URL",
-  "txt_backup_s3_addressing_style": "S3 寻址方式",
+  "txt_backup_s3_addressing_style": "寻址方式",
   "txt_backup_s3_addressing_path_style": "path-style（默认）",
   "txt_backup_s3_addressing_virtual_hosted_style": "virtual-hosted-style",
-  "txt_backup_s3_bucket": "存储桶",
+  "txt_backup_s3_bucket": "存储桶名称",
   "txt_backup_s3_region": "区域",
-  "txt_backup_s3_access_key": "访问密钥",
+  "txt_backup_s3_access_key": "访问 ID",
-  "txt_backup_s3_secret_key": "秘密密钥",
+  "txt_backup_s3_secret_key": "访问密码",
-  "txt_backup_s3_path": "远程路径",
+  "txt_backup_s3_path": "路径前缀",
   "txt_backup_reserved_name": "预留类型名称",
   "txt_backup_reserved_notes": "预留备注",
   "txt_backup_reserved_notes_placeholder": "给下一个备份地点先留个说明",

webapp/src/lib/i18n/locales/zh-TW.ts

@@ -85,6 +85,37 @@ const zhTW: Record<string, string> = {
   "txt_backup_recommend_pcloud_step_1": "先用郵箱註冊一個 pCloud 賬號。",
   "txt_backup_recommend_pcloud_step_2": "WebDAV 地址填寫 https://webdav.pcloud.com/ 。",
   "txt_backup_recommend_pcloud_step_3": "註冊郵箱用作 WebDAV 用戶名，註冊密碼用作 WebDAV 密碼。",
+  "txt_backup_recommend_backblaze_summary": "兼容 S3 的對象儲存，免費容量 10 GB，無需信用卡。",
+  "txt_backup_recommend_backblaze_step_1": "先註冊或登入 Backblaze 賬號。",
+  "txt_backup_recommend_backblaze_step_2_prefix": "打開",
+  "txt_backup_recommend_backblaze_step_2_suffix": "，點擊創建一個桶，只輸入桶名字，其他地方不修改，然後創建。",
+  "txt_backup_recommend_backblaze_step_3": "創建後顯示的 Endpoint 填到 S3 端點 URL；桶名字填到儲存桶名稱；區域填 Endpoint 中間那段，例如 us-west-004。",
+  "txt_backup_recommend_backblaze_step_4_prefix": "打開",
+  "txt_backup_recommend_backblaze_step_4_suffix": "，點擊 Add a New Application Key，隨便輸入 Name of Key，其他地方不動，然後創建。",
+  "txt_backup_recommend_backblaze_step_5": "生成結果裡的 keyID 填存取金鑰，applicationKey 填秘密金鑰。",
+  "txt_backup_recommend_cloudflare_r2_summary": "兼容 S3 的對象儲存，免費容量 10 GB，需要信用卡驗證。",
+  "txt_backup_recommend_cloudflare_r2_bucket_link": "創建儲存桶頁面",
+  "txt_backup_recommend_cloudflare_r2_api_link": "API 創建頁面",
+  "txt_backup_recommend_cloudflare_r2_step_1_prefix": "打開",
+  "txt_backup_recommend_cloudflare_r2_step_1_suffix": "，只輸入儲存桶名稱，直接創建。",
+  "txt_backup_recommend_cloudflare_r2_step_2_prefix": "打開",
+  "txt_backup_recommend_cloudflare_r2_step_2_suffix": "，權限全選「對象讀和寫」，直接創建。",
+  "txt_backup_recommend_cloudflare_r2_step_3": "創建後令牌值不用管；Access Key ID 填到存取 ID，Secret Access Key 填到存取密碼。",
+  "txt_backup_recommend_cloudflare_r2_step_4": "把下面顯示的地址填到 S3 端點 URL；儲存桶名稱如實填寫；區域保持 auto 不改。",
+  "txt_backup_recommend_cloudflare_r2_step_5": "路徑前綴按需要填寫，例如 nodewarden；不想分目錄可以留空。",
+  "txt_backup_recommend_s3_path_prefix_step": "路徑前綴按需要填寫，例如 nodewarden；不想分目錄可以留空。",
+  "txt_backup_recommend_tigris_summary": "兼容 S3 的對象儲存。免費容量 5 GB，無需信用卡。",
+  "txt_backup_recommend_tigris_signup_link": "註冊頁面",
+  "txt_backup_recommend_tigris_bucket_link": "Create Bucket 頁面",
+  "txt_backup_recommend_tigris_access_key_link": "Create Access Key 頁面",
+  "txt_backup_recommend_tigris_step_1_prefix": "打開",
+  "txt_backup_recommend_tigris_step_1_suffix": "，註冊並登入 Tigris。",
+  "txt_backup_recommend_tigris_step_2_prefix": "打開",
+  "txt_backup_recommend_tigris_step_2_suffix": "，只輸入桶的名字，其他地方不動，直接創建。",
+  "txt_backup_recommend_tigris_step_3_prefix": "然後打開",
+  "txt_backup_recommend_tigris_step_3_suffix": "，名字隨意，直接創建。",
+  "txt_backup_recommend_tigris_step_4": "創建後顯示的 Endpoint URL IAM 不用管；其餘顯示出來的內容按名稱填寫到備份頁面裡。",
+  "txt_backup_recommend_tigris_step_5": "最後點擊 Manage Key Permissions，把 Admin Access 打開，否則無法寫入。",
   "txt_backup_add_destination": "新增地點",
   "txt_backup_schedule_panel_title": "自動備份計劃",
   "txt_backup_schedule_panel_note": "每個備份地點都可以單獨配置自己的每日自動備份計劃。",
@@ -197,6 +228,8 @@ const zhTW: Record<string, string> = {
   "txt_backup_remote_folder": "文件夾",
   "txt_backup_remote_unknown_time": "未知時間",
   "txt_backup_remote_current_path": "當前目錄",
+  "txt_backup_remote_modified": "修改時間",
+  "txt_backup_remote_size": "大小",
   "txt_backup_remote_load_failed": "讀取遠端備份失敗",
   "txt_backup_remote_invalid_response": "遠端備份響應無效",
   "txt_backup_remote_download_failed": "下載遠端備份失敗",

webapp/src/lib/types.ts

@@ -314,6 +314,8 @@ export interface TokenSuccess {
   ResetMasterPassword?: boolean;
   scope?: string;
   unofficialServer?: boolean;
+  UserVerificationToken?: string;
+  userVerificationToken?: string;
   UserDecryptionOptions?: unknown;
   userDecryptionOptions?: unknown;
   VaultKeys?: {

webapp/src/styles.css

@@ -14,7 +14,6 @@
 /* Unified product polish: refined, smooth, comfortable surfaces across desktop, mobile, and dark mode. */
 
 /* ── surface consistency ── */
-.app-shell,
 .auth-card,
 .dialog-card,
 .card,
@@ -36,12 +35,6 @@
   box-shadow: var(--shadow-sm);
 }
 
-.app-shell {
-  background: var(--panel-soft);
-  border-radius: var(--radius-xl);
-  box-shadow: var(--shadow-lg);
-}
-
 .topbar,
 .mobile-tabbar,
 .app-side {
@@ -104,7 +97,6 @@
 }
 
 /* ── dark mode surface resets ── */
-:root[data-theme='dark'] .app-shell,
 :root[data-theme='dark'] .auth-card,
 :root[data-theme='dark'] .dialog-card,
 :root[data-theme='dark'] .card,
@@ -259,17 +251,6 @@ h4 {
   letter-spacing: 0;
 }
 
-.app-page {
-  padding: 18px;
-}
-
-.app-shell {
-  border-radius: var(--radius-xl);
-  border: 1px solid var(--line);
-  background: var(--panel);
-  box-shadow: var(--shadow-lg);
-}
-
 .topbar {
   height: 56px;
   padding-inline: 16px;
@@ -916,7 +897,6 @@ textarea {
   background: var(--bg-accent);
 }
 
-:root[data-theme='dark'] .app-shell,
 :root[data-theme='dark'] .topbar,
 :root[data-theme='dark'] .app-side,
 :root[data-theme='dark'] .mobile-tabbar,

webapp/src/styles/dark.css

@@ -200,10 +200,6 @@
   box-shadow: 0 1px 3px rgba(0, 0, 0, 0.20), 0 8px 24px rgba(0, 0, 0, 0.16);
 }
 
-:root[data-theme='dark'] .app-shell {
-  box-shadow: 0 4px 40px rgba(0, 0, 0, 0.30);
-}
-
 :root[data-theme='dark'] .list-item:hover {
   box-shadow: 0 10px 28px rgba(0, 0, 0, 0.24), 0 0 0 1px rgba(139, 184, 255, 0.12);
 }
@@ -340,6 +336,7 @@
 :root[data-theme='dark'] .backup-recommendation-step,
 :root[data-theme='dark'] .backup-recommendation-inline-note,
 :root[data-theme='dark'] .backup-recommendation-linked-item,
+:root[data-theme='dark'] .backup-browser-head,
 :root[data-theme='dark'] .backup-browser-meta,
 :root[data-theme='dark'] .backup-browser-empty,
 :root[data-theme='dark'] .backup-inline-note,
@@ -351,6 +348,19 @@
   color: var(--muted);
 }
 
+:root[data-theme='dark'] .backup-recommendation-step a {
+  color: var(--primary);
+}
+
+:root[data-theme='dark'] .backup-recommendation-step a:hover,
+:root[data-theme='dark'] .backup-recommendation-step a:focus-visible {
+  color: var(--primary-strong);
+}
+
+:root[data-theme='dark'] .backup-browser-head {
+  background: var(--panel-subtle);
+}
+
 :root[data-theme='dark'] .restore-progress-overlay {
   background: var(--overlay-strong);
   backdrop-filter: blur(8px);

webapp/src/styles/management.css

@@ -193,6 +193,18 @@
   line-height: 1.5;
 }
 
+.backup-recommendation-step a {
+  color: #1d4ed8;
+  font-weight: 700;
+  text-decoration: underline;
+  text-underline-offset: 2px;
+}
+
+.backup-recommendation-step a:hover,
+.backup-recommendation-step a:focus-visible {
+  color: #1742b0;
+}
+
 .backup-recommendation-inline-note {
   color: #475467;
   line-height: 1.5;
@@ -351,16 +363,34 @@
 }
 
 .backup-browser-nav {
-  @apply mb-2.5;
+  @apply mb-2.5 flex items-center justify-between gap-2;
+}
+
+.backup-browser-nav-left {
+  @apply min-w-0;
 }
 
 .backup-browser-list {
-  @apply overflow-hidden rounded-xl border bg-white;
+  @apply overflow-hidden rounded-lg border bg-white;
   border: 1px solid var(--line);
 }
 
+.backup-browser-head {
+  @apply grid items-center gap-3 px-3 py-2 text-[11px] font-bold uppercase tracking-[0.08em];
+  grid-template-columns: minmax(180px, 1fr) minmax(150px, 0.75fr) minmax(92px, 0.4fr) minmax(220px, auto);
+  border-bottom: 1px solid var(--line);
+  color: #64748b;
+  background: #f8fafc;
+}
+
+.backup-browser-head span:nth-child(2),
+.backup-browser-head span:nth-child(3),
+.backup-browser-head span:nth-child(4) {
+  text-align: right;
+}
+
 .backup-browser-pagination {
-  @apply mt-2.5 flex items-center justify-end gap-2.5;
+  @apply mt-2.5 flex items-center justify-center gap-2.5;
 }
 
 .backup-browser-page-indicator {
@@ -373,13 +403,15 @@
 }
 
 .backup-browser-row {
-  @apply grid items-center gap-2.5 px-3 py-2.5;
+  @apply grid items-center gap-3 px-3 py-2;
-  grid-template-columns: minmax(0, 1fr) auto auto;
+  grid-template-columns: minmax(180px, 1fr) minmax(150px, 0.75fr) minmax(92px, 0.4fr) minmax(220px, auto);
+  min-height: 48px;
 }
 
 .backup-browser-entry {
   @apply inline-flex cursor-pointer items-center gap-2 border-0 bg-transparent p-0 text-left;
   color: #0f172a;
+  min-width: 0;
 }
 
 .backup-browser-entry.file {
@@ -392,12 +424,17 @@
 }
 
 .backup-browser-meta {
-  @apply grid justify-items-end gap-1 text-right text-[13px];
+  @apply block text-right text-[13px];
   color: #64748b;
 }
 
+.backup-browser-size {
+  font-variant-numeric: tabular-nums;
+}
+
 .backup-browser-actions {
   justify-content: flex-end;
+  flex-wrap: nowrap;
 }
 
 .backup-browser-empty {

webapp/src/styles/responsive.css

@@ -46,6 +46,24 @@
     grid-template-columns: 1fr;
   }
 
+  .backup-browser-head {
+    display: none;
+  }
+
+  .backup-browser-meta {
+    text-align: left;
+  }
+
+  .backup-browser-actions {
+    justify-content: flex-start;
+    flex-wrap: wrap;
+  }
+
+  .backup-browser-nav {
+    align-items: flex-start;
+    flex-direction: column;
+  }
+
   .settings-twofactor-grid {
     grid-template-columns: 1fr;
   }
@@ -1110,6 +1128,24 @@
     grid-template-columns: 1fr;
   }
 
+  .backup-browser-head {
+    display: none;
+  }
+
+  .backup-browser-meta {
+    text-align: left;
+  }
+
+  .backup-browser-actions {
+    justify-content: flex-start;
+    flex-wrap: wrap;
+  }
+
+  .backup-browser-nav {
+    align-items: flex-start;
+    flex-direction: column;
+  }
+
   .backup-grid {
     gap: 8px;
     padding: 0;

webapp/src/styles/shell.css

@@ -1,17 +1,11 @@
 .app-page {
-  @apply relative min-h-full bg-transparent p-5;
+  @apply relative min-h-full bg-transparent;
 }
 
 .app-shell {
-  @apply relative mx-auto flex max-w-[1600px] flex-col overflow-hidden border bg-panel-soft;
+  @apply relative flex flex-col;
-  height: calc(100vh - 40px);
+  height: 100vh;
-  border-color: var(--line);
+  background: var(--bg-accent);
-  @apply rounded-3xl;
-  box-shadow:
-    0 20px 60px rgba(15, 23, 42, 0.12),
-    0 8px 24px rgba(15, 23, 42, 0.08),
-    0 0 0 1px rgba(15, 23, 42, 0.04);
-  transition: box-shadow var(--dur-medium) var(--ease-smooth);
 }
 
 .topbar {