fix Qdrant

backend/app/rag/store.py

@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 import logging
+from functools import lru_cache
 from typing import Any
 
 from qdrant_client import QdrantClient
@@ -14,11 +15,13 @@ COLLECTION_FACTS = "memory_facts"
 COLLECTION_SUMMARIES = "session_summaries"
 COLLECTION_DOC_CHUNKS = "document_chunks"
 VECTOR_SIZE = 1536
+QDRANT_TIMEOUT_SEC = 30.0
 
 
+@lru_cache
 def _client() -> QdrantClient:
     settings = get_settings()
-    return QdrantClient(url=settings.qdrant_url)
+    return QdrantClient(url=settings.qdrant_url, timeout=QDRANT_TIMEOUT_SEC)
 
 
 def ensure_collections() -> None: