Refactor and enhance logging in webhook handlers and Redis client

- Translated comments and docstrings from German to English for better clarity.
- Improved logging consistency across various webhook handlers for create, delete, and update operations.
- Centralized logging functionality by utilizing a dedicated logger utility.
- Added new enums for file and XAI sync statuses in models.
- Updated Redis client factory to use a centralized logger and improved error handling.
- Enhanced API responses to include more descriptive messages and status codes.

services/advoware.py

@@ -8,7 +8,6 @@ import hashlib
 import base64
 import os
 import datetime
-import logging
 from typing import Optional, Dict, Any
 
 from services.exceptions import (
@@ -21,8 +20,6 @@ from services.redis_client import get_redis_client
 from services.config import ADVOWARE_CONFIG, API_CONFIG
 from services.logging_utils import get_service_logger
 
-logger = logging.getLogger(__name__)
-
 
 class AdvowareAPI:
     """
@@ -93,7 +90,7 @@ class AdvowareAPI:
         
         try:
             api_key_bytes = base64.b64decode(self.api_key)
-            logger.debug("API Key decoded from base64")
+            self.logger.debug("API Key decoded from base64")
         except Exception as e:
             self._log(f"API Key not base64-encoded, using as-is: {e}", level='debug')
             api_key_bytes = self.api_key.encode('utf-8') if isinstance(self.api_key, str) else self.api_key