feat: 初始化 BuildingBlocks 仓库

src/Core/TakeoutSaaS.Shared.Web/Extensions/ApplicationBuilderExtensions.cs

@@ -0,0 +1,22 @@
+using Microsoft.AspNetCore.Builder;
+using TakeoutSaaS.Shared.Web.Middleware;
+
+namespace TakeoutSaaS.Shared.Web.Extensions;
+
+/// <summary>
+/// Web 应用中间件扩展。
+/// </summary>
+public static class ApplicationBuilderExtensions
+{
+    /// <summary>
+    /// 按规范启用 TraceId、请求日志、异常映射与安全响应头。
+    /// </summary>
+    public static IApplicationBuilder UseSharedWebCore(this IApplicationBuilder app)
+    {
+        app.UseMiddleware<CorrelationIdMiddleware>();
+        app.UseMiddleware<RequestLoggingMiddleware>();
+        app.UseMiddleware<ExceptionHandlingMiddleware>();
+        app.UseMiddleware<SecurityHeadersMiddleware>();
+        return app;
+    }
+}