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/role/schemas.py

@@ -0,0 +1,28 @@
+from typing import Optional
+
+from pydantic import BaseModel, Field
+
+# 角色表单验证
+class RoleForm(BaseModel):
+    id: Optional[int] = Field(None, description="角色ID")
+    name: str = Field(..., min_length=1, max_length=150, description="角色名称")
+    code: str = Field(..., min_length=1, max_length=30, description="角色编码")
+    status: int = Field(..., ge=1, le=2, description="角色状态")
+    sort: int = Field(..., ge=0, le=99999, description="角色排序")
+    note: Optional[str] = Field(None, max_length=255, description="角色备注")
+
+# 设置状态表单
+class RoleStatusForm(BaseModel):
+    id: int = Field(..., gt=0, description="角色ID")
+    status: int = Field(..., ge=1, le=2, description="角色状态")
+
+
+from typing import List, Optional
+
+from pydantic import BaseModel, Field
+
+
+# 角色菜单表单
+class RoleMenuForm(BaseModel):
+    role_id: int = Field(..., gt=0, description="角色ID")
+    menu_id: Optional[List[int]] = Field(default=[], description="菜单ID列表")