refactor: 移除多租户和客户相关代码及功能

refactor: 统一状态字段为字符串类型并更新相关组件
refactor: 更新模型基类移除租户和客户相关字段
refactor: 简化数据权限控制逻辑
refactor: 优化类型注解使用Python 3.10+语法
refactor: 清理无用导入和注释
docs: 更新文档移除多租户相关内容

backend/app/api/v1/module_application/ai/controller.py

@@ -7,10 +7,10 @@ from app.common.response import StreamResponse, SuccessResponse
 from app.common.request import PaginationService
 from app.core.base_params import PaginationQueryParam
 from app.core.dependencies import AuthPermission
-from app.core.router_class import OperationLogRoute
 from app.core.logger import log
 
 from app.api.v1.module_system.auth.schema import AuthSchema
+from app.core.router_class import OperationLogRoute
 from .service import McpService
 from .schema import McpCreateSchema, McpUpdateSchema, ChatQuerySchema, McpQueryParam