some typing

src/chat/knowledge/embedding_store.py

@@ -106,10 +106,10 @@ class EmbeddingStore:
             asyncio.get_running_loop()
             # 如果在事件循环中，使用线程池执行
             import concurrent.futures
-            
+
             def run_in_thread():
                 return asyncio.run(get_embedding(s))
-            
+
             with concurrent.futures.ThreadPoolExecutor() as executor:
                 future = executor.submit(run_in_thread)
                 result = future.result()
@@ -294,10 +294,10 @@ class EmbeddingStore:
         """
         if self.faiss_index is None:
             logger.debug("FaissIndex尚未构建,返回None")
-            return None
+            return []
         if self.idx2hash is None:
             logger.warning("idx2hash尚未构建,返回None")
-            return None
+            return []
 
         # L2归一化
         faiss.normalize_L2(np.array([query], dtype=np.float32))
@@ -318,15 +318,15 @@ class EmbeddingStore:
 class EmbeddingManager:
     def __init__(self):
         self.paragraphs_embedding_store = EmbeddingStore(
-            local_storage['pg_namespace'],
+            local_storage["pg_namespace"],  # type: ignore
             EMBEDDING_DATA_DIR_STR,
         )
         self.entities_embedding_store = EmbeddingStore(
-            local_storage['pg_namespace'],
+            local_storage["pg_namespace"],  # type: ignore
             EMBEDDING_DATA_DIR_STR,
         )
         self.relation_embedding_store = EmbeddingStore(
-            local_storage['pg_namespace'],
+            local_storage["pg_namespace"],  # type: ignore
             EMBEDDING_DATA_DIR_STR,
         )
         self.stored_pg_hashes = set()