fix: 菜单固定为全局

src/Api/TakeoutSaaS.AdminApi/Controllers/MenusController.cs

@@ -60,11 +60,8 @@ public sealed class MenusController(IMediator mediator) : BaseApiController
     [ProducesResponseType(typeof(ApiResponse<MenuDefinitionDto>), StatusCodes.Status200OK)]
     public async Task<ApiResponse<MenuDefinitionDto>> Create([FromBody, Required] CreateMenuCommand command, CancellationToken cancellationToken)
     {
-        // 1. 创建菜单
-        var result = await mediator.Send(command, cancellationToken);
-
-        // 2. 返回创建结果
-        return ApiResponse<MenuDefinitionDto>.Ok(result);
+        // 1. 菜单已固定，禁止新增
+        return await Task.FromResult(ApiResponse<MenuDefinitionDto>.Error(StatusCodes.Status403Forbidden, "菜单已固定，禁止新增"));
     }
 
     /// <summary>
@@ -79,16 +76,8 @@ public sealed class MenusController(IMediator mediator) : BaseApiController
         [FromBody, Required] UpdateMenuCommand command,
         CancellationToken cancellationToken)
     {
-        // 1. 绑定菜单 ID
-        command = command with { Id = menuId };
-
-        // 2. 执行更新
-        var result = await mediator.Send(command, cancellationToken);
-
-        // 3. 返回或 404
-        return result is null
-            ? ApiResponse<MenuDefinitionDto>.Error(StatusCodes.Status404NotFound, "菜单不存在")
-            : ApiResponse<MenuDefinitionDto>.Ok(result);
+        // 1. 菜单已固定，禁止修改
+        return await Task.FromResult(ApiResponse<MenuDefinitionDto>.Error(StatusCodes.Status403Forbidden, "菜单已固定，禁止修改"));
     }
 
     /// <summary>
@@ -99,10 +88,7 @@ public sealed class MenusController(IMediator mediator) : BaseApiController
     [ProducesResponseType(typeof(ApiResponse<bool>), StatusCodes.Status200OK)]
     public async Task<ApiResponse<bool>> Delete(long menuId, CancellationToken cancellationToken)
     {
-        // 1. 删除菜单
-        var result = await mediator.Send(new DeleteMenuCommand { Id = menuId }, cancellationToken);
-
-        // 2. 返回执行结果
-        return ApiResponse<bool>.Ok(result);
+        // 1. 菜单已固定，禁止删除
+        return await Task.FromResult(ApiResponse<bool>.Error(StatusCodes.Status403Forbidden, "菜单已固定，禁止删除"));
     }
 }