Add debug logging for interval values in monitor creation

This helps trace the interval values at each step:
- Claude agent logs what interval it suggested
- Monitor service logs the interval when creating and deploying

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/services/monitors.py

@@ -167,6 +167,12 @@ class MonitorService:
         """
         kuma = get_kuma_client()
 
+        interval_minutes = max(1, suggestion.interval // 60)
+        logger.info(
+            f"Creating monitor '{suggestion.name}': type={suggestion.type}, "
+            f"interval={suggestion.interval}s ({interval_minutes}min)"
+        )
+
         # Build monitor from suggestion
         monitor = Monitor(
             type=suggestion.type,
@@ -259,6 +265,11 @@ class MonitorService:
         Returns:
             Dict with status and any error messages
         """
+        logger.info(
+            f"Deploying push script: metric={push_metric}, monitor_id={monitor_id}, "
+            f"interval_minutes={interval_minutes}"
+        )
+
         kuma = get_kuma_client()
         ssh = get_ssh_manager()