chore: 提交现有修改

src/Core/TakeoutSaaS.Shared.Web/Middleware/ExceptionHandlingMiddleware.cs

@@ -14,34 +14,23 @@ namespace TakeoutSaaS.Shared.Web.Middleware;
 /// <summary>
 /// 全局异常处理中间件，将异常统一映射为 ApiResponse。
 /// </summary>
-public sealed class ExceptionHandlingMiddleware
+public sealed class ExceptionHandlingMiddleware(RequestDelegate next, ILogger<ExceptionHandlingMiddleware> logger, IHostEnvironment environment)
 {
-    private readonly RequestDelegate _next;
-    private readonly ILogger<ExceptionHandlingMiddleware> _logger;
-    private readonly IHostEnvironment _environment;
-
     private static readonly JsonSerializerOptions SerializerOptions = new()
     {
         PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
         DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull
     };
 
-    public ExceptionHandlingMiddleware(RequestDelegate next, ILogger<ExceptionHandlingMiddleware> logger, IHostEnvironment environment)
-    {
-        _next = next;
-        _logger = logger;
-        _environment = environment;
-    }
-
     public async Task InvokeAsync(HttpContext context)
     {
         try
         {
-            await _next(context);
+            await next(context);
         }
         catch (Exception ex)
         {
-            _logger.LogError(ex, "未处理异常：{Message}", ex.Message);
+            logger.LogError(ex, "未处理异常：{Message}", ex.Message);
             await HandleExceptionAsync(context, ex);
         }
     }
@@ -50,7 +39,7 @@ public sealed class ExceptionHandlingMiddleware
     {
         var (statusCode, response) = BuildErrorResponse(exception);
 
-        if (_environment.IsDevelopment())
+        if (environment.IsDevelopment())
         {
             response = response with
             {