feat: fix favorites display and add star indicator on favorited items

- Add ?metadata=true support to GET /api/files/{id} to return JSON metadata
  instead of binary content (was the root cause of favorites not loading)
- Fix favorites loadFileDetails to use metadata endpoint with auth headers
- Add star icon on favorited files/folders in grid view (top-left corner)
- Add star icon on favorited files/folders in list view (next to name)
- Refresh file view when toggling favorites so star appears/disappears
- Add CSS styles for .favorite-star and .favorite-star-inline

src/interfaces/api/handlers/file_handler.rs

@@ -270,6 +270,20 @@ impl FileHandler {
             }
         };
 
+        // ── Metadata-only request ────────────────────────────────────
+        if params.get("metadata").map_or(false, |v| v == "true" || v == "1") {
+            return (StatusCode::OK, Json(serde_json::json!({
+                "id": file_dto.id,
+                "name": file_dto.name,
+                "path": file_dto.path,
+                "size": file_dto.size,
+                "mime_type": file_dto.mime_type,
+                "folder_id": file_dto.folder_id,
+                "created_at": file_dto.created_at,
+                "modified_at": file_dto.modified_at
+            }))).into_response();
+        }
+
         let etag = format!("\"{}-{}\"", id, file_dto.modified_at);
 
         // ── ETag (304 Not Modified) ──────────────────────────────────

static/css/favorites.css

@@ -93,3 +93,40 @@
 .favorite-indicator.active {
     animation: favorite-pulse 0.3s ease;
 }
+
+/* ── Star badge on file/folder cards (normal view) ── */
+
+/* Grid view: star in top-left corner */
+.file-card .favorite-star {
+    position: absolute;
+    top: 8px;
+    left: 8px;
+    font-size: 14px;
+    color: #ffc107;
+    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.15));
+    z-index: 5;
+    pointer-events: none;
+
+    [dir='rtl'] & {
+        left: unset;
+        right: 8px;
+    }
+}
+
+.file-card .favorite-star.active i {
+    animation: favorite-pulse 0.3s ease;
+}
+
+/* List view: small star next to the name */
+.favorite-star-inline {
+    color: #ffc107;
+    font-size: 11px;
+    margin-left: 6px;
+    vertical-align: middle;
+    filter: drop-shadow(0 0 1px rgba(255, 193, 7, 0.4));
+
+    [dir='rtl'] & {
+        margin-left: 0;
+        margin-right: 6px;
+    }
+}

static/js/favorites.js

@@ -234,6 +234,11 @@ const favorites = {
                 `"${name}" added to favorites`
             );
             
+            // Refresh file view to show star icon
+            if (window.app.currentSection === 'files' && typeof window.loadFiles === 'function') {
+                window.loadFiles();
+            }
+            
             return true;
         } catch (error) {
             console.error('Error adding to favorites:', error);
@@ -275,6 +280,12 @@ const favorites = {
                         `"${item.name}" removed from favorites`
                     );
                 }
+                
+                // Refresh file view to remove star icon
+                if (window.app.currentSection === 'files' && typeof window.loadFiles === 'function') {
+                    window.loadFiles();
+                }
+                
                 return true;
             }
             
@@ -371,7 +382,9 @@ const favorites = {
      */
     async loadFolderDetails(favorite, filesGrid, filesListView) {
         try {
-            const response = await fetch(`/api/folders/${favorite.id}`);
+            const token = localStorage.getItem('oxicloud_token');
+            const headers = token ? { 'Authorization': `Bearer ${token}` } : {};
+            const response = await fetch(`/api/folders/${favorite.id}`, { headers });
             
             if (response.ok) {
                 const folder = await response.json();
@@ -398,30 +411,14 @@ const favorites = {
      */
     async loadFileDetails(favorite, filesGrid, filesListView) {
         try {
-            const response = await fetch(`/api/files/${favorite.id}`);
+            const token = localStorage.getItem('oxicloud_token');
+            const headers = token ? { 'Authorization': `Bearer ${token}` } : {};
+            const response = await fetch(`/api/files/${favorite.id}?metadata=true`, { headers });
             
             if (response.ok) {
-                // Check if the response is JSON or binary data like a PDF
+                const file = await response.json();
-                const contentType = response.headers.get('content-type');
+                // Create UI element with favorite indicator
-                
+                this.createFavoriteFileElement(file, filesGrid, filesListView);
-                if (contentType && contentType.includes('application/json')) {
-                    const file = await response.json();
-                    
-                    // Create UI element with favorite indicator
-                    this.createFavoriteFileElement(file, filesGrid, filesListView);
-                } else {
-                    // For non-JSON responses (like PDFs or other binary files)
-                    // Create a simplified file element with minimal information
-                    const file = {
-                        id: favorite.id,
-                        name: favorite.name || `File ${favorite.id}`,
-                        mime_type: contentType || 'application/octet-stream',
-                        size: 0, // We don't know the size from this response
-                        modified_at: Math.floor(Date.now() / 1000) // Current time in seconds
-                    };
-                    
-                    this.createFavoriteFileElement(file, filesGrid, filesListView);
-                }
             } else if (response.status === 404) {
                 // File not found, might be deleted
                 console.log(`Favorite file ${favorite.id} not found, removing from favorites`);

static/js/ui.js

@@ -666,9 +666,14 @@ const ui = {
         folderGridElement.dataset.folderId = folder.id;
         folderGridElement.dataset.folderName = folder.name;
         folderGridElement.dataset.parentId = folder.parent_id || "";
+
+        // Check if folder is a favorite
+        const isFolderFav = window.favorites && window.favorites.isFavorite(folder.id, 'folder');
+
         folderGridElement.innerHTML = `
             <div class="file-card-checkbox"><i class="fas fa-check"></i></div>
             <button class="file-card-more"><i class="fas fa-ellipsis-v"></i></button>
+            ${isFolderFav ? '<div class="favorite-star active"><i class="fas fa-star"></i></div>' : ''}
             <div class="file-icon folder-icon">
                 <i class="fas fa-folder"></i>
             </div>
@@ -813,6 +818,7 @@ const ui = {
                     <i class="fas fa-folder"></i>
                 </div>
                 <span>${folder.name}</span>
+                ${isFolderFav ? '<i class="fas fa-star favorite-star-inline"></i>' : ''}
             </div>
             <div class="type-cell">${window.i18n ? window.i18n.t('files.file_types.folder') : 'Folder'}</div>
             <div class="size-cell">--</div>
@@ -927,9 +933,14 @@ const ui = {
         // Grid view element
         const fileGridElement = document.createElement('div');
         fileGridElement.className = 'file-card';
+
+        // Check if file is a favorite
+        const isFileFav = window.favorites && window.favorites.isFavorite(file.id, 'file');
+
         fileGridElement.innerHTML = `
             <div class="file-card-checkbox"><i class="fas fa-check"></i></div>
             <button class="file-card-more"><i class="fas fa-ellipsis-v"></i></button>
+            ${isFileFav ? '<div class="favorite-star active"><i class="fas fa-star"></i></div>' : ''}
             <div class="file-icon">
                 <i class="${iconClass}"></i>
             </div>
@@ -1037,6 +1048,7 @@ const ui = {
                     <i class="${iconClass}"></i>
                 </div>
                 <span>${file.name}</span>
+                ${isFileFav ? '<i class="fas fa-star favorite-star-inline"></i>' : ''}
             </div>
             <div class="type-cell">${typeLabel}</div>
             <div class="size-cell">${fileSize}</div>