docs: 完善参数注释与StyleCop配置

src/Gateway/TakeoutSaaS.ApiGateway/Program.cs

@@ -1,16 +1,13 @@
-using System.Diagnostics;
-using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Diagnostics;
-using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.HttpOverrides;
-using Microsoft.AspNetCore.RateLimiting;
 using OpenTelemetry.Logs;
 using OpenTelemetry.Metrics;
 using OpenTelemetry.Resources;
 using OpenTelemetry.Trace;
 using Serilog;
-using TakeoutSaaS.ApiGateway.Configuration;
+using System.Diagnostics;
 using System.Threading.RateLimiting;
+using TakeoutSaaS.ApiGateway.Configuration;
 
 const string CorsPolicyName = "GatewayCors";