refactor: 完成多租户架构移除与系统模块重构

1. 移除所有租户相关逻辑：删除租户ID查询参数、租户字段、租户存储相关代码
2. 重构菜单系统：合并platform/system菜单模块，调整菜单作用域为web/app
3. 修复导出接口：统一post请求使用body传参，替换get导出为post
4. 优化权限标识：更新权限路由前缀为module_system
5. 简化菜单过滤逻辑：移除工作区模式判断，直接展示所有菜单
6. 移除租户切换、代签入等无关功能组件与状态
7. 新增用户注册功能与工单导出接口

backend/app/api/v1/module_system/log/controller.py

@@ -1,13 +1,14 @@
 from typing import Annotated
 
 from fastapi import APIRouter, Body, Depends, Path, Query, Security
-from fastapi.responses import JSONResponse
+from fastapi.responses import JSONResponse, StreamingResponse
 from sqlalchemy.ext.asyncio import AsyncSession
 
-from app.common.response import ResponseSchema, SuccessResponse
+from app.common.response import ResponseSchema, StreamResponse, SuccessResponse
 from app.core.base_schema import AuthSchema, PageResultSchema, PaginationQueryParam
 from app.core.dependencies import AuthPermission, db_getter, get_current_user
 from app.core.router_class import OperationLogRoute
+from app.utils.common_util import bytes2file_response
 
 from .schema import (
     LoginLogDetailOutSchema,
@@ -94,3 +95,19 @@ async def delete_operation_log_controller(
 ) -> JSONResponse:
     await OperationLogService(auth, db).delete(ids=ids)
     return SuccessResponse(msg="删除操作日志成功")
+
+
+@LogRouter.post("/operation/export", summary="导出操作日志", dependencies=[Security(AuthPermission(["module_system:log:export"]))])
+async def export_operation_log_list_controller(
+    auth: Annotated[AuthSchema, Depends(get_current_user)],
+    db: Annotated[AsyncSession, Depends(db_getter)],
+    search: Annotated[OperationLogQueryParam, Body()],
+) -> StreamingResponse:
+    operation_log_query_result = await OperationLogService(auth, db).get_list(search=search)
+    operation_log_export_result = OperationLogService.export_list(operation_log_list=[item.model_dump() for item in operation_log_query_result])
+
+    return StreamResponse(
+        data=bytes2file_response(operation_log_export_result),
+        media_type="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
+        headers={"Content-Disposition": "attachment; filename=operation_log.xlsx"},
+    )