refactor: clean up vault components by removing unused drag-and-drop functionality and optimizing icon loading logic

.claude/settings.local.json

@@ -0,0 +1,8 @@
+{
+  "permissions": {
+    "allow": [
+      "Bash(npx vite *)",
+      "Bash(npx tsc *)"
+    ]
+  }
+}