feat(phase4): 全部业务模块迁移到 modules/（结构迁移）

- 21 个模块目录（auth/system/dictionary/configuration/cms/member/region/link/notice/job/log/upload/index）
- 每个模块 router.py（合并模块导出多个 router）/schemas.py/service.py/repository.py/models.py
- routers/v1.py 与 routers/__init__.py 改为直接引用 modules，前缀与权限串原样保留
- core/middleware.py 懒加载指向 modules.system.menu / modules.log；core/redis_client.py 指向 modules.job.scheduler
- apps/views|services|forms 全部改为 re-export 垫片
- 迁移后 grep 守门通过：modules/core 无 apps/extensions 残留引用
- 实测登录、27+ 模块接口、写操作 commit、操作日志落库均正常

Co-Authored-By: Claude <noreply@anthropic.com>

modules/system/menu/router.py

@@ -0,0 +1,53 @@
+from fastapi import APIRouter, Request
+
+from modules.system.menu.schemas import MenuForm
+from core.middleware import check_demo
+from core.middleware import permission_required
+from modules.system.menu import service as menu
+from core import R
+
+# 创建路由
+router = APIRouter()
+
+
+# 查询分页数据
+@router.get('/list', summary='查询分页数据')
+@permission_required("sys:menu:list")
+def list(request: Request):
+    result = menu.get_menu_page(request)
+    return result
+
+
+# 查询菜单详情
+@router.get('/detail/{id}', summary='查询菜单详情')
+@permission_required("sys:menu:detail")
+def detail(request: Request, id):
+    data = menu.get_menu_detail(id)
+    return R.ok(data=data)
+
+
+# 添加菜单
+@router.post('/add', summary='添加菜单')
+@permission_required("sys:menu:add")
+@check_demo
+async def add(request: Request, data: MenuForm):
+    result = await menu.add_menu(request, data)
+    return result
+
+
+# 更新菜单
+@router.put('/update', summary='更新菜单')
+@permission_required("sys:menu:update")
+@check_demo
+async def update(request: Request, data: MenuForm):
+    result = await menu.update_menu(request, data)
+    return result
+
+
+# 删除菜单
+@router.delete('/delete/{id}', summary='删除菜单')
+@permission_required("sys:menu:delete")
+@check_demo
+async def delete(request: Request, id):
+    result = await menu.delete_menu(id)
+    return result