fix: search_documents 端点添加异常处理防止 traceback 泄露

src/server/app.py

@@ -150,9 +150,15 @@ def search_documents(
     state: AppState = Depends(get_state),
     _: bool = Depends(verify_api_key),
 ):
-    searcher = state.get_searcher(req.collection)
-    results = searcher.search(req.query, top_k=req.top_k)
-    return {"results": results, "collection": searcher.collection_name}
+    try:
+        searcher = state.get_searcher(req.collection)
+        results = searcher.search(req.query, top_k=req.top_k)
+        return {"results": results, "collection": searcher.collection_name}
+    except HTTPException:
+        raise
+    except Exception:
+        logger.exception("检索失败")
+        raise HTTPException(status_code=500, detail="服务器内部错误")
 
 
 @app.delete("/api/v1/documents/{file_name}")