feat: complete remediation phase 3

frontend/package.json

@@ -6,7 +6,8 @@
     "dev": "next dev",
     "build": "next build",
     "start": "next start",
-    "lint": "next lint"
+    "lint": "next lint",
+    "postinstall": "node -e \"require('fs').copyFileSync('node_modules/pdfjs-dist/build/pdf.worker.min.mjs', 'public/pdf.worker.min.mjs')\""
   },
   "dependencies": {
     "@onlyoffice/document-editor-react": "^2.2.0",

frontend/src/components/PdfViewer.tsx

@@ -7,7 +7,7 @@ import 'react-pdf/dist/Page/AnnotationLayer.css';
 import 'react-pdf/dist/Page/TextLayer.css';
 
 if (typeof window !== 'undefined') {
-  pdfjs.GlobalWorkerOptions.workerSrc = `//unpkg.com/pdfjs-dist@${pdfjs.version}/build/pdf.worker.min.mjs`;
+  pdfjs.GlobalWorkerOptions.workerSrc = `/pdf.worker.min.mjs`;
 }
 
 export default function PdfViewer({ url }: { url: string }) {

frontend/src/components/SettingsPage.tsx

@@ -72,7 +72,14 @@ export default function SettingsPage({ onLogout }: SettingsPageProps) {
     setSuccess(false);
 
     try {
-      await api.updateSettings(settings);
+      const existing = await api.getSettings();
+      const merged = {
+        ...(existing?.settings || existing || {}),
+        theme: settings.theme,
+        grid_size: settings.grid_size,
+        trash_auto_purge_days: settings.trash_auto_purge_days,
+      };
+      await api.updateSettings(merged);
       setSuccess(true);
       setTimeout(() => setSuccess(false), 3000);
       applyTheme(settings.theme);

frontend/src/components/ShareModal.tsx

@@ -85,7 +85,8 @@ export default function ShareModal({ filePath, onClose }: ShareModalProps) {
                     <Shield className="w-4 h-4" /> Password (Optional)
                   </label>
                   <input
-                    type="text"
+                    type="password"
+                    autoComplete="new-password"
                     value={password}
                     onChange={(e) => setPassword(e.target.value)}
                     placeholder="Leave blank for no password"