fix(db): fix database connection leak

api/app/services/user_memory_service.py

@@ -21,8 +21,7 @@ from app.repositories.end_user_repository import EndUserRepository
 from app.repositories.neo4j.cypher_queries import Graph_Node_query
 from app.repositories.neo4j.neo4j_connector import Neo4jConnector
 from app.schemas.memory_episodic_schema import EmotionSubject, EmotionType, type_mapping
-from app.services.implicit_memory_service import ImplicitMemoryService
-from app.services.memory_base_service import MemoryBaseService, MemoryTransService
+from app.services.memory_base_service import MemoryBaseService
 from app.services.memory_config_service import MemoryConfigService
 from app.services.memory_perceptual_service import MemoryPerceptualService
 from app.services.memory_short_service import ShortService
@@ -1167,7 +1166,6 @@ async def analytics_user_summary(end_user_id: Optional[str] = None, language: st
 
     from app.core.language_utils import validate_language
     from app.core.memory.utils.prompt.prompt_utils import render_user_summary_prompt
-    from app.db import get_db
     from app.repositories.end_user_repository import EndUserRepository
     
     # 验证语言参数
@@ -1178,8 +1176,7 @@ async def analytics_user_summary(end_user_id: Optional[str] = None, language: st
     if end_user_id:
         try:
             # 获取数据库会话并查询用户信息
-            db = next(get_db())
-            try:
+            with get_db_context() as db:
                 repo = EndUserRepository(db)
                 end_user = repo.get_by_id(uuid.UUID(end_user_id))
                 if end_user and end_user.other_name:
@@ -1187,8 +1184,7 @@ async def analytics_user_summary(end_user_id: Optional[str] = None, language: st
                     logger.info(f"使用 other_name 作为用户显示名称: {user_display_name}")
                 else:
                     logger.info(f"用户 {end_user_id} 的 other_name 为空，使用默认称呼: {user_display_name}")
-            finally:
-                db.close()
+
         except Exception as e:
             logger.warning(f"获取用户 other_name 失败，使用默认称呼: {str(e)}")