Fix merge conflicts and resolve circular import issues

- Resolve conflict markers in logging_config.py, main.py, app.py
- Fix circular imports in story_writer services (image/audio/video generation)
  by using lazy imports for get_story_media_write_dir
- Restore clean versions of:
  - sif_agents.py
  - tenant_provider_config.py
  - personalization_service.py
  - huggingface_provider.py
  - main_text_generation.py
  - logger_utils.py
- Use setup_clean_logging() consistently across app.py and main.py
- Restore verbose_mode handling in start_alwrity_backend.py

backend/main.py

@@ -49,12 +49,8 @@ load_dotenv(project_root / '.env')  # root .env (fallback)
 load_dotenv()  # CWD .env (fallback)
 
 # Set up clean logging for end users
-from logging_config import configure_logging
-<<<<<<< HEAD
-configure_logging(bootstrap_source="asgi-import")
-=======
-configure_logging(mode="default", app_name="ALwrity")
->>>>>>> pr-422
+from logging_config import setup_clean_logging
+setup_clean_logging()
 
 # Import middleware
 from middleware.auth_middleware import get_current_user