task(F2-frontend): library search, favorites section, star toggle, svg thumbnails, grid view

frontend/src/services/api.ts

@@ -660,6 +660,7 @@ export interface GlobalBlock {
   name: string;
   block_data: string;
   svg_data: string | null;
+  is_favorite: boolean;
   created_at: string;
   updated_at: string;
 }
@@ -698,6 +699,17 @@ export async function renameGlobalBlock(token: string, id: string, name: string)
   return res.json();
 }
 
+// Task F2: Favorite-Toggle für globale Blöcke
+export async function setGlobalBlockFavorite(token: string, id: string, isFavorite: boolean): Promise<GlobalBlock> {
+  const res = await fetch(`${API_BASE}/api/global-blocks/${id}`, {
+    method: 'PATCH',
+    headers: authHeaders(token),
+    body: JSON.stringify({ is_favorite: isFavorite }),
+  });
+  if (!res.ok) throw new Error('Failed to set favorite');
+  return res.json();
+}
+
 export async function deleteGlobalBlock(token: string, id: string): Promise<void> {
   const res = await fetch(`${API_BASE}/api/global-blocks/${id}`, {
     method: 'DELETE',