fix(mcp): 优化智能对话流式响应并增强异常处理

- 确保智能对话流式响应返回字节串，防止类型错误
- 在流式响应异常时返回友好错误信息，避免连接中断
- WebSocket聊天控制器中添加异常处理，保证异常信息反馈客户端
- WebSocket连接异常后使用finally确保连接正确关闭

refactor(resource): 统一资源接口返回HTTP URL路径

- 资源控制器新增Request参数，传递base_url实现URL转换
- 资源服务中所有路径替换为返回基于base_url的HTTP URL路径
- 文件信息、目录列表、文件上传下载接口均返回HTTP URL，提升前端友好度
- 移除递归参数及相关逻辑，简化目录统计实现

fix(database): 简化数据库依赖生成器，避免不必要的事务开启

- dependencies中db_getter取消多余事务管理，仅yield数据库会话

style(router_class): 优化操作日志路由异常处理，去除多余事务

- 简化操作日志写入流程，移除嵌套事务开启，提升代码可读性

refactor(initialize): 优化数据库初始化逻辑并增强日志与事务管理

- 初始化数据插入前打印日志，插入后标记是否需要提交事务
- PostgreSQL序列更新拆分成单独方法，针对有id字段的表执行
- 增加完整的异常捕获和回滚，保证初始化失败时事务回滚
- 读取初始化数据文件时增加日志及异常处理

fix(ai_client): 修正AI客户端HTTP连接管理及异常处理

- 使用自定义httpx AsyncClient替代默认客户端，确保连接配置
- 增加关闭客户端连接方法，避免资源泄露
- 流式响应时检查选择器内容有效性，提升稳定性

chore(cleanup): 移除MySQL快照SQL文件，保持仓库整洁

- 删除无用的SQL数据转储文件，减小仓库体积并维护清洁度

backend/app/api/v1/module_resource/resource/controller.py

@@ -26,19 +26,19 @@ from .service import ResourceService
 ResourceRouter = APIRouter(route_class=OperationLogRoute, prefix="/resource", tags=["资源管理"])
 
 
-@ResourceRouter.get("/list", summary="获取目录列表", description="获取指定目录的文件列表")
+@ResourceRouter.get("/list", summary="获取目录列表", description="获取指定目录下的文件和子目录列表")
 async def get_directory_list_controller(
+    request: Request,
     path: Optional[str] = Query(None, description="目录路径"),
-    recursive: bool = Query(False, description="递归获取"),
-    include_hidden: bool = Query(False, description="包含隐藏文件"),
+    include_hidden: bool = Query(False, description="是否包含隐藏文件"),
     auth: AuthSchema = Depends(AuthPermission(permissions=["resource:file:query"]))
 ) -> JSONResponse:
     """获取目录列表"""
     result_dict = await ResourceService.get_directory_list_service(
         auth=auth, 
         path=path, 
-        recursive=recursive, 
-        include_hidden=include_hidden
+        include_hidden=include_hidden,
+        base_url=str(request.base_url)
     )
     logger.info(f"获取目录列表成功: {path or 'default'}")
     return SuccessResponse(data=result_dict, msg="获取目录列表成功")
@@ -46,11 +46,16 @@ async def get_directory_list_controller(
 
 @ResourceRouter.post("/search", summary="搜索资源", description="根据条件搜索资源")
 async def search_resources_controller(
+    request: Request,
     search: ResourceSearchSchema,
     auth: AuthSchema = Depends(AuthPermission(permissions=["resource:file:search"]))
 ) -> JSONResponse:
     """搜索资源"""
-    result_list = await ResourceService.search_resources_service(auth=auth, search=search)
+    result_list = await ResourceService.search_resources_service(
+        auth=auth, 
+        search=search,
+        base_url=str(request.base_url)
+    )
     logger.info(f"搜索资源成功，找到 {len(result_list)} 个结果")
     return SuccessResponse(data=result_list, msg=f"搜索成功，找到 {len(result_list)} 个结果")
 
@@ -58,6 +63,7 @@ async def search_resources_controller(
 @ResourceRouter.post("/upload", summary="上传文件", description="上传文件到指定目录")
 async def upload_file_controller(
     file: UploadFile,
+    request: Request,
     target_path: Optional[str] = Form(None, description="目标目录路径"),
     auth: AuthSchema = Depends(AuthPermission(permissions=["resource:file:upload"]))
 ) -> JSONResponse:
@@ -65,7 +71,8 @@ async def upload_file_controller(
     result_dict = await ResourceService.upload_file_service(
         auth=auth,
         file=file,
-        target_path=target_path
+        target_path=target_path,
+        base_url=str(request.base_url)
     )
     logger.info(f"上传文件成功: {result_dict['filename']}")
     return SuccessResponse(data=result_dict, msg="上传文件成功")
@@ -73,11 +80,16 @@ async def upload_file_controller(
 
 @ResourceRouter.get("/download", summary="下载文件", description="下载指定文件")
 async def download_file_controller(
+    request: Request,
     path: str = Query(..., description="文件路径"),
     auth: AuthSchema = Depends(AuthPermission(permissions=["resource:file:download"]))
 ) -> FileResponse:
     """下载文件"""
-    file_path = await ResourceService.download_file_service(auth=auth, file_path=path)
+    file_path = await ResourceService.download_file_service(
+        auth=auth, 
+        file_path=path,
+        base_url=str(request.base_url)
+    )
     
     # 获取文件名
     import os
@@ -148,22 +160,31 @@ async def create_directory_controller(
 
 @ResourceRouter.get("/stats", summary="获取资源统计", description="获取资源统计信息")
 async def get_resource_stats_controller(
+    request: Request,
     auth: AuthSchema = Depends(AuthPermission(permissions=["resource:file:query"]))
 ) -> JSONResponse:
     """获取资源统计"""
-    result_dict = await ResourceService.get_stats_service(auth=auth)
+    result_dict = await ResourceService.get_stats_service(
+        auth=auth,
+        base_url=str(request.base_url)
+    )
     logger.info("获取资源统计成功")
     return SuccessResponse(data=result_dict, msg="获取资源统计成功")
 
 
 @ResourceRouter.post("/export", summary="导出资源列表", description="导出资源列表")
 async def export_resource_list_controller(
+    request: Request,
     search: ResourceSearchSchema,
     auth: AuthSchema = Depends(AuthPermission(permissions=["resource:file:export"]))
 ) -> StreamingResponse:
     """导出资源列表"""
     # 获取搜索结果
-    result_list = await ResourceService.search_resources_service(auth=auth, search=search)
+    result_list = await ResourceService.search_resources_service(
+        auth=auth, 
+        search=search,
+        base_url=str(request.base_url)
+    )
     export_result = await ResourceService.export_resource_service(data_list=result_list)
     
     logger.info("导出资源列表成功")