perf: optimize Docker build with layer caching and BuildKit support

src/components/file-explorer/file-explorer.component.ts

@@ -66,12 +66,33 @@ export class FileExplorerComponent {
   selectedNoteId = input<string | null>(null);
   foldersOnly = input<boolean>(false);
   useTrashCounts = input<boolean>(false);
+  quickLinkFilter = input<'favoris' | 'publish' | 'draft' | 'template' | 'task' | 'private' | 'archive' | null>(null);
   fileSelected = output<string>();
   folderSelected = output<string>();
 
   private vaultService = inject(VaultService);
 
   folderCount(path: string): number {
+    const quickLink = this.quickLinkFilter();
+    if (quickLink) {
+      // Compute filtered count
+      let filteredNotes = this.vaultService.allNotes().filter(note => {
+        const frontmatter = note.frontmatter || {};
+        return frontmatter[quickLink] === true;
+      });
+
+      // Apply folder filter
+      if (path) {
+        const folder = path.toLowerCase().replace(/^\/+|\/+$/g, '');
+        filteredNotes = filteredNotes.filter(note => {
+          const originalPath = (note.originalPath || '').toLowerCase().replace(/^\/+|\/+$/g, '');
+          return originalPath === folder || originalPath.startsWith(folder + '/');
+        });
+      }
+
+      return filteredNotes.length;
+    }
+
     if (this.useTrashCounts()) {
       const counts = this.vaultService.trashFolderCounts();
       const raw = (path || '').replace(/\\/g, '/');