feat: Add logging utility for calendar sync operations and enhance error handling

steps/advoware_cal_sync/calendar_sync_utils.py

@@ -18,6 +18,26 @@ def get_logger(context=None):
     return get_service_logger('calendar_sync', context)
 
 
+def log_operation(level: str, message: str, context=None, **extra):
+    """
+    Log calendar sync operations with structured context.
+    
+    Args:
+        level: Log level ('debug', 'info', 'warning', 'error')
+        message: Log message
+        context: FlowContext if available
+        **extra: Additional key-value pairs to log
+    """
+    logger = get_logger(context)
+    log_func = getattr(logger, level.lower(), logger.info)
+    
+    if extra:
+        extra_str = " | " + " | ".join(f"{k}={v}" for k, v in extra.items())
+        log_func(message + extra_str)
+    else:
+        log_func(message)
+
+
 async def connect_db(context=None):
     """Connect to Postgres DB from environment variables."""
     logger = get_logger(context)