feat(shop-role): 实现店铺角色继承功能和权限检查优化

- 新增店铺角色管理 API 和数据模型
- 实现角色继承和权限检查逻辑
- 添加流程测试框架和集成测试
- 更新权限服务和账号管理逻辑
- 添加数据库迁移脚本
- 归档 OpenSpec 变更文档

Ultraworked with Sisyphus

internal/bootstrap/handlers.go

@@ -19,6 +19,7 @@ func initHandlers(svc *services, deps *Dependencies) *Handlers {
 		Permission:                  admin.NewPermissionHandler(svc.Permission),
 		PersonalCustomer:            app.NewPersonalCustomerHandler(svc.PersonalCustomer, deps.Logger),
 		Shop:                        admin.NewShopHandler(svc.Shop),
+		ShopRole:                    admin.NewShopRoleHandler(svc.Shop),
 		AdminAuth:                   admin.NewAuthHandler(svc.Auth, validate),
 		H5Auth:                      h5.NewAuthHandler(svc.Auth, validate),
 		ShopCommission:              admin.NewShopCommissionHandler(svc.ShopCommission),