Respect disabled payments in launch validation

mandelstudio/launch_validation.py

@@ -44,12 +44,23 @@ def get_checkout_apps() -> list[str]:
     return [app for app in settings.INSTALLED_APPS if "checkout" in app.lower()]
 
 
+def idea_marketplace_payments_enabled() -> bool:
+    return bool(getattr(settings, "IDEA_MARKETPLACE_PAYMENTS_ENABLED", False))
+
+
 def validate_payment_provider_config() -> None:
     installed_apps = list(settings.INSTALLED_APPS)
     payment_apps = get_declared_payment_apps(installed_apps)
     checkout_apps = get_checkout_apps()
     config_plugins = get_declared_plugins()
 
+    if not idea_marketplace_payments_enabled():
+        if any(_is_dummy_payment_app(app) for app in config_plugins):
+            raise CommandError(
+                "Dummy payment app is declared in ocyan.json. Remove it even when payments are disabled."
+            )
+        return
+
     if not payment_apps:
         raise CommandError("No payment app declared for this project.")
     if not checkout_apps: