fix: bug fix

GermanApp/Program.cs

@@ -90,6 +90,7 @@ try
         });
     });
 
+    builder.Services.AddControllers();
     // Add services for Minimal APIs
     builder.Services.AddEndpointsApiExplorer();
     builder.Services.AddSwaggerGen();
@@ -146,7 +147,7 @@ try
 
     // Use Health Checks
     app.MapHealthChecks("/health");
-
+    
     // Map Auth endpoints
     app.MapControllerRoute(
         name: "api",