重排，多路查询

rag_core/vector_store.py

@@ -10,6 +10,7 @@ from langchain_core.documents import Document
 from langchain_qdrant import QdrantVectorStore as LangchainQdrantVS
 from qdrant_client import QdrantClient
 from qdrant_client.http.models import Distance, VectorParams
+from .client import create_qdrant_client
 
 logger = logging.getLogger(__name__)
 
@@ -44,14 +45,8 @@ class QdrantVectorStore:
         )
 
     def get_client(self) -> QdrantClient:
-        """懒加载客户端，每次获取时确保连接可用。"""
         if self._client is None:
-            self._client = QdrantClient(
-                url=QDRANT_URL,
-                api_key=QDRANT_API_KEY,
-                timeout=120,
-                http2=False,
-            )
+            self._client = create_qdrant_client(timeout=120)
         return self._client
 
     def refresh_client(self):