fix(db): fix database connection leak

api/app/services/memory_agent_service.py

@@ -13,7 +13,6 @@ TODO: Refactor get_end_user_connected_config
 """
 import json
 import os
-import re
 import time
 import uuid
 from typing import Any, AsyncGenerator, Dict, List, Optional
@@ -35,12 +34,10 @@ from app.core.memory.agent.utils.messages_tools import (
     reorder_output_results,
 )
 from app.core.memory.agent.utils.type_classifier import status_typle
-from app.core.memory.agent.utils.write_tools import write  # 新增：直接导入 write 函数
-from app.core.memory.analytics.hot_memory_tags import get_hot_memory_tags, get_interest_distribution
+from app.core.memory.analytics.hot_memory_tags import get_interest_distribution
 from app.core.memory.utils.llm.llm_utils import MemoryClientFactory
 from app.db import get_db_context
 from app.models.knowledge_model import Knowledge, KnowledgeType
-from app.repositories.memory_short_repository import ShortTermMemoryRepository
 from app.repositories.neo4j.neo4j_connector import Neo4jConnector
 from app.schemas.memory_agent_schema import Write_UserInput
 from app.schemas.memory_config_schema import ConfigurationError
@@ -69,7 +66,8 @@ class MemoryAgentService:
             logger.info(f"Write operation successful for group {end_user_id} with config_id {config_id}")
             # 记录成功的操作
             if audit_logger:
-                audit_logger.log_operation(operation="WRITE", config_id=config_id, end_user_id=end_user_id, success=True,
+                audit_logger.log_operation(operation="WRITE", config_id=config_id, end_user_id=end_user_id,
+                                           success=True,
                                            duration=duration, details={"message_length": len(message)})
             return context
         else:
@@ -88,8 +86,6 @@ class MemoryAgentService:
 
             raise ValueError(f"写入失败: {messages}")
 
-
-
     def extract_tool_call_info(self, event: Dict) -> bool:
         """Extract tool call information from event"""
         last_message = event["messages"][-1]
@@ -271,7 +267,8 @@ class MemoryAgentService:
             logger.info("Log streaming completed, cleaning up resources")
             # LogStreamer uses context manager for file handling, so cleanup is automatic
 
-    async def write_memory(self, end_user_id: str, messages:  list[dict], config_id: Optional[uuid.UUID]|int, db: Session, storage_type: str, user_rag_memory_id: str, language: str = "zh") -> str:
+    async def write_memory(self, end_user_id: str, messages: list[dict], config_id: Optional[uuid.UUID] | int,
+                           db: Session, storage_type: str, user_rag_memory_id: str, language: str = "zh") -> str:
         """
         Process write operation with config_id
 
@@ -300,7 +297,8 @@ class MemoryAgentService:
                 config_id = connected_config.get("memory_config_id")
             logger.info(f"Resolved config from end_user: config_id={config_id}, workspace_id={workspace_id}")
             if config_id is None and workspace_id is None:
-                raise ValueError(f"No memory configuration found for end_user {end_user_id}. Please ensure the user has a connected memory configuration.")
+                raise ValueError(
+                    f"No memory configuration found for end_user {end_user_id}. Please ensure the user has a connected memory configuration.")
         except Exception as e:
             if "No memory configuration found" in str(e):
                 raise  # Re-raise our specific error
@@ -331,7 +329,8 @@ class MemoryAgentService:
             # Log failed operation
             if audit_logger:
                 duration = time.time() - start_time
-                audit_logger.log_operation(operation="WRITE", config_id=config_id, end_user_id=end_user_id, success=False, duration=duration, error=error_msg)
+                audit_logger.log_operation(operation="WRITE", config_id=config_id, end_user_id=end_user_id,
+                                           success=False, duration=duration, error=error_msg)
 
             raise ValueError(error_msg)
 
@@ -351,9 +350,9 @@ class MemoryAgentService:
                             langchain_messages.append(HumanMessage(content=msg['content']))
                         elif msg['role'] == 'assistant':
                             langchain_messages.append(AIMessage(content=msg['content']))
-                    print(100*'-')
+                    print(100 * '-')
                     print(langchain_messages)
-                    print(100*'-')
+                    print(100 * '-')
                     # 初始状态 - 包含所有必要字段
                     initial_state = {
                         "messages": langchain_messages,
@@ -375,29 +374,28 @@ class MemoryAgentService:
                     contents = massages.get('write_result')
                     # Convert messages back to string for logging
                     message_text = "\n".join([f"{msg['role']}: {msg['content']}" for msg in messages])
-                    return self.writer_messages_deal(massagesstatus, start_time, end_user_id, config_id, message_text, contents)
+                    return self.writer_messages_deal(massagesstatus, start_time, end_user_id, config_id, message_text,
+                                                     contents)
         except Exception as e:
             # Ensure proper error handling and logging
             error_msg = f"Write operation failed: {str(e)}"
             logger.error(error_msg)
             if audit_logger:
                 duration = time.time() - start_time
-                audit_logger.log_operation(operation="WRITE", config_id=config_id, end_user_id=end_user_id, success=False, duration=duration, error=error_msg)
+                audit_logger.log_operation(operation="WRITE", config_id=config_id, end_user_id=end_user_id,
+                                           success=False, duration=duration, error=error_msg)
             raise ValueError(error_msg)
 
-
-
-
     async def read_memory(
-        self,
-        end_user_id: str,
-        message: str,
-        history: List[Dict],
-        search_switch: str,
-        config_id:  Optional[uuid.UUID]|int,
-        db: Session,
-        storage_type: str,
-        user_rag_memory_id: str) -> Dict:
+            self,
+            end_user_id: str,
+            message: str,
+            history: List[Dict],
+            search_switch: str,
+            config_id: Optional[uuid.UUID] | int,
+            db: Session,
+            storage_type: str,
+            user_rag_memory_id: str) -> Dict:
         """
         Process read operation with config_id
 
@@ -425,7 +423,7 @@ class MemoryAgentService:
 
         import time
         start_time = time.time()
-        ori_message= message
+        ori_message = message
 
         # Resolve config_id and workspace_id
         # Always get workspace_id from end_user for fallback, even if config_id is provided
@@ -437,7 +435,8 @@ class MemoryAgentService:
                 config_id = connected_config.get("memory_config_id")
             logger.info(f"Resolved config from end_user: config_id={config_id}, workspace_id={workspace_id}")
             if config_id is None and workspace_id is None:
-                raise ValueError(f"No memory configuration found for end_user {end_user_id}. Please ensure the user has a connected memory configuration.")
+                raise ValueError(
+                    f"No memory configuration found for end_user {end_user_id}. Please ensure the user has a connected memory configuration.")
         except Exception as e:
             if "No memory configuration found" in str(e):
                 raise  # Re-raise our specific error
@@ -454,7 +453,6 @@ class MemoryAgentService:
         except ImportError:
             audit_logger = None
 
-
         config_load_start = time.time()
         try:
             # Use a separate database session to avoid transaction failures
@@ -562,34 +560,35 @@ class MemoryAgentService:
                     from app.repositories.memory_short_repository import (
                         ShortTermMemoryRepository,
                     )
-                    
+
                     retrieved_content = []
                     repo = ShortTermMemoryRepository(db)
-                    
+
                     if str(search_switch) != "2":
                         for intermediate in _intermediate_outputs:
                             logger.debug(f"处理中间结果: {intermediate}")
                             intermediate_type = intermediate.get('type', '')
-                            
+
                             if intermediate_type == "search_result":
                                 query = intermediate.get('query', '')
                                 raw_results = intermediate.get('raw_results', {})
                                 try:
                                     reranked_results = raw_results.get('reranked_results', [])
-                                    statements = [statement['statement'] for statement in reranked_results.get('statements', [])]
+                                    statements = [statement['statement'] for statement in
+                                                  reranked_results.get('statements', [])]
                                 except Exception:
                                     statements = []
-                                
+
                                 # 去重
                                 statements = list(set(statements))
-                                
+
                                 if query and statements:
                                     retrieved_content.append({query: statements})
-                    
+
                     # 如果 retrieved_content 为空，设置为空字符串
                     if retrieved_content == []:
                         retrieved_content = ''
-                    
+
                     # 只有当回答不是"信息不足"且不是快速检索时才保存
                     if '信息不足，无法回答。' != str(summary) and str(search_switch).strip() != "2":
                         # 使用 upsert 方法
@@ -602,15 +601,17 @@ class MemoryAgentService:
                         )
                         logger.info(f"成功保存短期记忆: end_user_id={end_user_id}, search_switch={search_switch}")
                     else:
-                        logger.debug(f"跳过保存短期记忆: summary={summary[:50] if summary else 'None'}, search_switch={search_switch}")
-                        
+                        logger.debug(
+                            f"跳过保存短期记忆: summary={summary[:50] if summary else 'None'}, search_switch={search_switch}")
+
                 except Exception as save_error:
                     # 保存失败不应该影响主流程，只记录错误
                     logger.error(f"保存短期记忆失败: {str(save_error)}", exc_info=True)
 
                 # Log successful operation
                 total_time = time.time() - start_time
-                logger.info(f"[PERF] read_memory completed successfully in {total_time:.4f}s (config: {config_load_time:.4f}s, graph: {graph_exec_time:.4f}s)")
+                logger.info(
+                    f"[PERF] read_memory completed successfully in {total_time:.4f}s (config: {config_load_time:.4f}s, graph: {graph_exec_time:.4f}s)")
                 if audit_logger:
                     duration = time.time() - start_time
                     audit_logger.log_operation(
@@ -641,7 +642,6 @@ class MemoryAgentService:
                 )
             raise ValueError(error_msg)
 
-
     def get_messages_list(self, user_input: Write_UserInput) -> list[dict]:
         """
         Get standardized message list from user input.
@@ -657,41 +657,43 @@ class MemoryAgentService:
         """
         from app.core.logging_config import get_api_logger
         logger = get_api_logger()
-        
+
         if len(user_input.messages) == 0:
             logger.error("Validation failed: Message list cannot be empty")
             raise ValueError("Message list cannot be empty")
-        
+
         for idx, msg in enumerate(user_input.messages):
             if not isinstance(msg, dict):
                 logger.error(f"Validation failed: Message {idx} is not a dict: {type(msg)}")
-                raise ValueError(f"Message format error: Message must be a dictionary. Error message index: {idx}, type: {type(msg)}")
-            
+                raise ValueError(
+                    f"Message format error: Message must be a dictionary. Error message index: {idx}, type: {type(msg)}")
+
             if 'role' not in msg:
                 logger.error(f"Validation failed: Message {idx} missing 'role' field: {msg}")
                 raise ValueError(f"Message format error: Message must contain 'role' field. Error message index: {idx}")
-            
+
             if 'content' not in msg:
                 logger.error(f"Validation failed: Message {idx} missing 'content' field: {msg}")
-                raise ValueError(f"Message format error: Message must contain 'content' field. Error message index: {idx}")
-            
+                raise ValueError(
+                    f"Message format error: Message must contain 'content' field. Error message index: {idx}")
+
             if msg['role'] not in ['user', 'assistant']:
                 logger.error(f"Validation failed: Message {idx} invalid role: {msg['role']}")
                 raise ValueError(f"Role must be 'user' or 'assistant', got: {msg['role']}. Message index: {idx}")
-            
+
             if not msg['content'] or not msg['content'].strip():
                 logger.error(f"Validation failed: Message {idx} content is empty")
                 raise ValueError(f"Message content cannot be empty. Message index: {idx}, role: {msg['role']}")
-        
+
         logger.info(f"Validation successful: Structured message list, count: {len(user_input.messages)}")
         return user_input.messages
 
     async def classify_message_type(
-        self,
-        message: str,
-        config_id: UUID,
-        db: Session,
-        workspace_id: Optional[UUID] = None
+            self,
+            message: str,
+            config_id: UUID,
+            db: Session,
+            workspace_id: Optional[UUID] = None
     ) -> Dict:
         """
         Determine the type of user message (read or write)
@@ -719,14 +721,15 @@ class MemoryAgentService:
         status = await status_typle(message, memory_config.llm_model_id)
         logger.debug(f"Message type: {status}")
         return status
+
     async def generate_summary_from_retrieve(
-        self,
-        end_user_id: str,
-        retrieve_info: str,
-        history: List[Dict],
-        query: str,
-        config_id: str,
-        db: Session
+            self,
+            end_user_id: str,
+            retrieve_info: str,
+            history: List[Dict],
+            query: str,
+            config_id: str,
+            db: Session
     ) -> str:
         """
         基于检索信息、历史对话和查询生成最终答案
@@ -761,9 +764,9 @@ class MemoryAgentService:
             if config_id is None:
                 raise ValueError(f"Unable to determine memory configuration for end_user {end_user_id}: {e}")
             # If config_id was provided, continue without workspace_id fallback
-            
+
         logger.info(f"Generating summary from retrieve info for query: {query[:50]}...")
-        
+
         try:
             # 加载配置
             config_service = MemoryConfigService(db)
@@ -772,7 +775,7 @@ class MemoryAgentService:
                 workspace_id=workspace_id,
                 service_name="MemoryAgentService"
             )
-            
+
             # 导入必要的模块
             from app.core.memory.agent.langgraph_graph.nodes.summary_nodes import (
                 summary_llm,
@@ -780,13 +783,13 @@ class MemoryAgentService:
             from app.core.memory.agent.models.summary_models import (
                 RetrieveSummaryResponse,
             )
-            
+
             # 构建状态对象
             state = {
                 "data": query,
                 "memory_config": memory_config
             }
-            
+
             # 直接调用 summary_llm 函数
             answer = await summary_llm(
                 state=state,
@@ -797,21 +800,20 @@ class MemoryAgentService:
                 response_model=RetrieveSummaryResponse,
                 search_mode="1"
             )
-            
+
             logger.info(f"Successfully generated summary: {answer[:100] if answer else 'None'}...")
             return answer if answer else "信息不足，无法回答。"
-            
+
         except Exception as e:
             logger.error(f"生成摘要失败: {str(e)}", exc_info=True)
             return "信息不足，无法回答。"
 
-
     async def get_knowledge_type_stats(
-        self,
-        end_user_id: Optional[str] = None,
-        only_active: bool = True,
-        current_workspace_id: Optional[uuid.UUID] = None,
-        db: Session = None
+            self,
+            db: Session,
+            end_user_id: Optional[str] = None,
+            only_active: bool = True,
+            current_workspace_id: Optional[uuid.UUID] = None
     ) -> Dict[str, Any]:
         """
         统计知识库类型分布，包含：
@@ -837,11 +839,6 @@ class MemoryAgentService:
 
         # 1. 统计 PostgreSQL 中的知识库类型
         try:
-            if db is None:
-                from app.db import get_db
-                db_gen = get_db()
-                db = next(db_gen)
-
             # 初始化所有标准类型为 0
             for kb_type in KnowledgeType:
                 result[kb_type.value] = 0
@@ -881,21 +878,19 @@ class MemoryAgentService:
 
         # 3. 计算知识库类型总和（不包括 memory）
         result["total"] = (
-            result.get("General", 0) +
-            result.get("Web", 0) +
-            result.get("Third-party", 0) +
-            result.get("Folder", 0)
+                result.get("General", 0) +
+                result.get("Web", 0) +
+                result.get("Third-party", 0) +
+                result.get("Folder", 0)
         )
 
         return result
 
-
-
     async def get_interest_distribution_by_user(
-        self,
-        end_user_id: Optional[str] = None,
-        limit: int = 5,
-        language: str = "zh"
+            self,
+            end_user_id: Optional[str] = None,
+            limit: int = 5,
+            language: str = "zh"
     ) -> List[Dict[str, Any]]:
         """
         获取指定用户的兴趣分布标签。
@@ -921,13 +916,12 @@ class MemoryAgentService:
             logger.error(f"兴趣分布标签查询失败: {e}")
             raise Exception(f"兴趣分布标签查询失败: {e}")
 
-
     async def get_user_profile(
-        self,
-        end_user_id: Optional[str] = None,
-        current_user_id: Optional[str] = None,
-        llm_id: Optional[str] = None,
-        db: Session = None
+            self,
+            end_user_id: Optional[str] = None,
+            current_user_id: Optional[str] = None,
+            llm_id: Optional[str] = None,
+            db: Session = None
     ) -> Dict[str, Any]:
         """
         获取用户详情，包含：
@@ -1017,7 +1011,8 @@ class MemoryAgentService:
 
                 # 定义标签提取的结构
                 class UserTags(BaseModel):
-                    tags: list[str] = Field(..., description="3个描述用户特征的标签，如：产品设计师、旅行爱好者、摄影发烧友")
+                    tags: list[str] = Field(...,
+                                            description="3个描述用户特征的标签，如：产品设计师、旅行爱好者、摄影发烧友")
 
                 messages = [
                     {
@@ -1160,7 +1155,6 @@ def get_end_user_connected_config(end_user_id: str, db: Session) -> Dict[str, An
         ValueError: 当终端用户不存在或应用未发布时
     """
     import json as json_module
-    import uuid
 
     from sqlalchemy import select
 
@@ -1192,14 +1186,14 @@ def get_end_user_connected_config(end_user_id: str, db: Session) -> Dict[str, An
 
     # 3. 兼容旧数据：如果 memory_config_id 为空，从 AppRelease.config 获取并回填
     memory_config_id_to_use = end_user.memory_config_id
-    
+
     # 如果已有 memory_config_id，直接使用
     # 如果新创建enduser，enduser.memory_config_id 必定为none
     # 那么使用从release中获取memory_config_id为预期行为，并且回填到
     # end_user.memory_config_id
     if not memory_config_id_to_use:
         logger.info(f"end_user.memory_config_id is None, migrating from AppRelease.config")
-        
+
         # 获取最新发布版本
         stmt = (
             select(AppRelease)
@@ -1208,10 +1202,10 @@ def get_end_user_connected_config(end_user_id: str, db: Session) -> Dict[str, An
         )
         # TODO: change to current_release_id
         latest_release = db.scalars(stmt).first()
-        
+
         if latest_release:
             config = latest_release.config or {}
-            
+
             # 如果 config 是字符串，解析为字典
             if isinstance(config, str):
                 try:
@@ -1219,22 +1213,22 @@ def get_end_user_connected_config(end_user_id: str, db: Session) -> Dict[str, An
                 except json_module.JSONDecodeError:
                     logger.warning(f"Failed to parse config JSON for release {latest_release.id}")
                     config = {}
-            
+
             # 使用 MemoryConfigService 的提取方法
             memory_config_service = MemoryConfigService(db)
             legacy_config_id, is_legacy_int = memory_config_service.extract_memory_config_id(
                 app_type=app.type,
                 config=config
             )
-            
+
             if legacy_config_id:
                 # 验证提取的 config_id 是否存在于数据库中
                 from app.models.memory_config_model import MemoryConfig as MemoryConfigModel
                 existing_config = db.get(MemoryConfigModel, legacy_config_id)
-                
+
                 if existing_config:
                     memory_config_id_to_use = legacy_config_id
-                    
+
                     # 回填到 end_user 表（lazy update）
                     end_user.memory_config_id = memory_config_id_to_use
                     db.commit()
@@ -1268,7 +1262,8 @@ def get_end_user_connected_config(end_user_id: str, db: Session) -> Dict[str, An
         "workspace_id": str(app.workspace_id)
     }
 
-    logger.info(f"Successfully retrieved connected config: memory_config_id={memory_config_id}, workspace_id={app.workspace_id}")
+    logger.info(
+        f"Successfully retrieved connected config: memory_config_id={memory_config_id}, workspace_id={app.workspace_id}")
     return result
 
 
@@ -1312,7 +1307,7 @@ def get_end_users_connected_configs_batch(end_user_ids: List[str], db: Session)
 
     # 1. 批量查询所有 end_user 及其 app_id 和 memory_config_id
     end_users = db.query(EndUser).filter(EndUser.id.in_(end_user_ids)).all()
-    
+
     # 创建映射 - 保留 EndUser 对象引用以便回填
     end_user_map = {str(eu.id): eu for eu in end_users}
     user_data = {str(eu.id): {"app_id": eu.app_id, "memory_config_id": eu.memory_config_id} for eu in end_users}
@@ -1336,15 +1331,15 @@ def get_end_users_connected_configs_batch(end_user_ids: List[str], db: Session)
 
     # 3. 对于没有 memory_config_id 的用户，尝试从 AppRelease.config 提取
     users_needing_migration = [
-        (end_user_id, data["app_id"]) 
-        for end_user_id, data in user_data.items() 
+        (end_user_id, data["app_id"])
+        for end_user_id, data in user_data.items()
         if not data["memory_config_id"]
     ]
-    
+
     if users_needing_migration:
         # 批量获取相关应用的最新发布版本
         migration_app_ids = list(set(app_id for _, app_id in users_needing_migration))
-        
+
         # 查询每个应用的最新活跃发布版本
         app_latest_releases = {}
         for app_id in migration_app_ids:
@@ -1357,18 +1352,18 @@ def get_end_users_connected_configs_batch(end_user_ids: List[str], db: Session)
             latest_release = db.scalars(stmt).first()
             if latest_release:
                 app_latest_releases[app_id] = latest_release
-        
+
         # 为每个需要迁移的用户提取 memory_config_id
         config_service = MemoryConfigService(db)
         users_to_backfill = []  # [(end_user, memory_config_id), ...]
-        
+
         for end_user_id, app_id in users_needing_migration:
             latest_release = app_latest_releases.get(app_id)
             if not latest_release:
                 continue
-            
+
             config = latest_release.config or {}
-            
+
             # 如果 config 是字符串，解析为字典
             if isinstance(config, str):
                 try:
@@ -1376,21 +1371,21 @@ def get_end_users_connected_configs_batch(end_user_ids: List[str], db: Session)
                 except json_module.JSONDecodeError:
                     logger.warning(f"Failed to parse config JSON for release {latest_release.id}")
                     continue
-            
+
             # 使用 MemoryConfigService 的提取方法
             app = app_map.get(app_id)
             if not app:
                 continue
-                
+
             legacy_config_id, is_legacy_int = config_service.extract_memory_config_id(
                 app_type=app.type,
                 config=config
             )
-            
+
             if legacy_config_id:
                 # 更新 user_data 中的 memory_config_id
                 user_data[end_user_id]["memory_config_id"] = legacy_config_id
-                
+
                 # 记录需要回填的用户（稍后验证配置存在后再回填）
                 end_user = end_user_map.get(end_user_id)
                 if end_user:
@@ -1399,7 +1394,7 @@ def get_end_users_connected_configs_batch(end_user_ids: List[str], db: Session)
                 logger.info(
                     f"Legacy int config detected for end_user {end_user_id}, will use workspace default"
                 )
-        
+
         # 验证提取的 config_id 是否存在于数据库中
         if users_to_backfill:
             config_ids_to_validate = list(set(cid for _, cid in users_to_backfill))
@@ -1407,17 +1402,17 @@ def get_end_users_connected_configs_batch(end_user_ids: List[str], db: Session)
                 MemoryConfig.config_id.in_(config_ids_to_validate)
             ).all()
             valid_config_ids = {mc.config_id for mc in existing_configs}
-            
+
             # 只回填存在的配置
             valid_backfills = [
-                (eu, cid) for eu, cid in users_to_backfill 
+                (eu, cid) for eu, cid in users_to_backfill
                 if cid in valid_config_ids
             ]
             invalid_backfills = [
-                (eu, cid) for eu, cid in users_to_backfill 
+                (eu, cid) for eu, cid in users_to_backfill
                 if cid not in valid_config_ids
             ]
-            
+
             if invalid_backfills:
                 invalid_ids = [str(cid) for _, cid in invalid_backfills]
                 logger.warning(
@@ -1426,7 +1421,7 @@ def get_end_users_connected_configs_batch(end_user_ids: List[str], db: Session)
                 # 清除 user_data 中无效的 config_id
                 for eu, cid in invalid_backfills:
                     user_data[str(eu.id)]["memory_config_id"] = None
-            
+
             # 批量回填 end_user.memory_config_id
             if valid_backfills:
                 for end_user, memory_config_id in valid_backfills:
@@ -1437,7 +1432,7 @@ def get_end_users_connected_configs_batch(end_user_ids: List[str], db: Session)
     # 4. 收集需要查询的 memory_config_id 和需要回退的 workspace_id
     direct_config_ids = []
     workspace_fallback_users = []  # [(end_user_id, workspace_id), ...]
-    
+
     for end_user_id, data in user_data.items():
         if data["memory_config_id"]:
             direct_config_ids.append(data["memory_config_id"])
@@ -1455,7 +1450,7 @@ def get_end_users_connected_configs_batch(end_user_ids: List[str], db: Session)
     # 6. 获取工作空间默认配置（需要逐个查询，因为 get_workspace_default_config 有复杂逻辑）
     workspace_default_configs = {}
     unique_workspace_ids = list(set(ws_id for _, ws_id in workspace_fallback_users))
-    
+
     if unique_workspace_ids:
         config_service = MemoryConfigService(db)
         for workspace_id in unique_workspace_ids:
@@ -1466,11 +1461,11 @@ def get_end_users_connected_configs_batch(end_user_ids: List[str], db: Session)
     # 7. 构建最终结果
     for end_user_id, data in user_data.items():
         memory_config = None
-        
+
         # 优先使用 end_user 直接分配的配置
         if data["memory_config_id"]:
             memory_config = config_id_to_config.get(data["memory_config_id"])
-        
+
         # 回退到工作空间默认配置
         if not memory_config:
             workspace_id = app_to_workspace.get(data["app_id"])
@@ -1486,4 +1481,4 @@ def get_end_users_connected_configs_batch(end_user_ids: List[str], db: Session)
             result[end_user_id] = {"memory_config_id": None, "memory_config_name": None}
 
     logger.info(f"Successfully retrieved {len(result)} connected configs")
-    return result
+    return result