feat: add sub path for actual url

Endpoint/Program.cs

@@ -1,4 +1,5 @@
 using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.HttpOverrides;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
@@ -66,11 +67,11 @@ public class Program
             });
         });
 
-            builder.WebHost.ConfigureKestrel(options =>
-            {
-                options.ListenLocalhost(
-                    int.Parse(builder.Configuration.GetValue<string>("INTERNAL_PORT")!));
-            });
+        builder.WebHost.ConfigureKestrel(options =>
+        {
+            options.ListenLocalhost(
+                int.Parse(builder.Configuration.GetValue<string>("INTERNAL_PORT") ?? "8080"));
+        });
 
         builder.Services.Configure<ForwardedHeadersOptions>(options =>
         {
@@ -94,7 +95,7 @@ public class Program
 
         var app = builder.Build();
 
-        app.UseStaticFiles();
+        app.UseStaticFiles(UrlHelper.GetSubPath.TrimEnd('/'));
         app.UseCors("AllowAll");
         app.UseCustomSerilog();
         app.UseForwardedHeaders();