begin new and last rework

OwnChar.Server/Api/Endpoint/ApiBuilder.cs

@@ -0,0 +1,25 @@
+namespace OwnChar.ServerNew.Api.Endpoint;
+
+internal class ApiBuilder(WebApplication app) : IApiBuilder
+{
+    public void Map(string method, string pattern, Delegate action)
+    {
+        if (method == ApiRequestMethods.Get)
+            app.MapGet(pattern, action);
+        else if (method == ApiRequestMethods.Post)
+            app.MapPost(pattern, action);
+        else if (method == ApiRequestMethods.Put)
+            app.MapPut(pattern, action);
+        else if (method == ApiRequestMethods.Patch)
+            app.MapPatch(pattern, action);
+        else if (method == ApiRequestMethods.Delete)
+            app.MapDelete(pattern, action);
+        else
+            throw new NotSupportedException();
+    }
+
+    public void Map(string pattern, Delegate action)
+    {
+        app.Map(pattern, action);
+    }
+}