重排，多路查询

rag_core/client.py

@@ -0,0 +1,24 @@
+# rag_core/client.py
+import os
+from typing import Optional
+from qdrant_client import QdrantClient
+
+QDRANT_URL = os.getenv("QDRANT_URL", "http://127.0.0.1:6333")
+QDRANT_API_KEY = os.getenv("QDRANT_API_KEY")
+
+def create_qdrant_client(
+    url: Optional[str] = None,
+    api_key: Optional[str] = None,
+    timeout: int = 120,  # 索引构建需要较长超时
+) -> QdrantClient:
+    effective_url = url or QDRANT_URL
+    effective_api_key = api_key or QDRANT_API_KEY
+    
+    if not effective_url:
+        raise ValueError("Qdrant URL 未配置")
+    
+    client_kwargs = {"url": effective_url, "timeout": timeout}
+    if effective_api_key:
+        client_kwargs["api_key"] = effective_api_key
+    
+    return QdrantClient(**client_kwargs)