Function cacheGraph

website/src/pages/Explore.tsx:120–137

(ref: RepoRef, graphData: any)

};

const cacheGraph = async (ref: RepoRef, graphData: any): Promise<void> => {
  try {
    const db = await openDB();
    return new Promise((resolve, reject) => {
      const transaction = db.transaction(STORE_NAME, "readwrite");
      const store = transaction.objectStore(STORE_NAME);
      const request = store.put({
        key: getCacheKey(ref),
        graphData,
        timestamp: Date.now()
      });
      request.onerror = () => reject(request.error);
      request.onsuccess = () => resolve();
    });
  } catch (e) {
    console.error("Failed to write to IndexedDB", e);
  }
};

// ============================================================================
// FETCH WITH PROGRESS TRACKING