feat(api): add protected connect account endpoint

src/FiscalOS.API/Accounts/Connect/Endpoint.cs

@@ -0,0 +1,16 @@
+namespace FiscalOS.API.Accounts.Connect;
+
+internal static class Endpoint
+{
+  private const string Route = "/connect";
+
+  public static RouteHandlerBuilder MapConnectEndpoint(this RouteGroupBuilder groupBuilder)
+  {
+    return groupBuilder.MapPost(Route, HandleAsync);
+  }
+
+  private static async Task<IResult> HandleAsync()
+  {
+    return Results.Ok();
+  }
+}