Cleanup: Remove one-time test files

- Removed test-module-settings.html (manual API test file)
- Removed test_urls.py (one-time URL verification script)
- Removed test_stage1_refactor.py (stage 1 refactor verification)
- Kept proper test suites in tests/ folders

backend/igny8_core/modules/system/test_urls.py

@@ -1,27 +0,0 @@
-"""
-Test script to verify URL patterns are correctly registered
-Run this with: python manage.py shell < test_urls.py
-"""
-from django.urls import resolve, reverse
-from django.test import RequestFactory
-
-# Test URL resolution
-try:
-    # Test the generate endpoint
-    url_path = '/api/v1/system/settings/integrations/image_generation/generate/'
-    resolved = resolve(url_path)
-    print(f"✅ URL resolved: {url_path}")
-    print(f"   View: {resolved.func}")
-    print(f"   Args: {resolved.args}")
-    print(f"   Kwargs: {resolved.kwargs}")
-except Exception as e:
-    print(f"❌ URL NOT resolved: {url_path}")
-    print(f"   Error: {e}")
-
-# Test reverse
-try:
-    reversed_url = reverse('integration-settings-generate', kwargs={'pk': 'image_generation'})
-    print(f"✅ Reverse URL: {reversed_url}")
-except Exception as e:
-    print(f"❌ Reverse failed: {e}")
-