refactor: return the modified interfaces for further modification

Endpoint/Configuration/Core/Startup/LoggerConfiguration.cs

@@ -15,7 +15,7 @@ public static class LoggerConfiguration
 {
     public static IHostBuilder AddCustomSerilog(this IHostBuilder hostBuilder)
     {
-        hostBuilder.UseSerilog((context, _, configuration) =>
+        return hostBuilder.UseSerilog((context, _, configuration) =>
         {
             var generalConfig = context.Configuration.Get<GeneralConfig>()?.LogSettings;
             configuration
@@ -51,13 +51,11 @@ public static class LoggerConfiguration
             configuration.Filter.ByExcluding(Matching.WithProperty<string>("SourceContext", sc =>
                 sc.Contains("Microsoft.EntityFrameworkCore.Database.Command")));
         });
-
-        return hostBuilder;
     }
 
     public static IApplicationBuilder UseCustomSerilog(this IApplicationBuilder app)
     {
-        app.UseSerilogRequestLogging(options =>
+        return app.UseSerilogRequestLogging(options =>
         {
             options.MessageTemplate = "[{RequestMethod}] {RequestPath} [Client {RemoteIPAddress}] [{StatusCode}] in {Elapsed:0.0000} ms";
 
@@ -75,7 +73,5 @@ public static class LoggerConfiguration
                 diagnosticContext.Set("RemoteIPAddress", httpContext.Connection.RemoteIpAddress?.ToString());
             };
         });
-
-        return app;
     }
 }