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/claude_agent.py

@@ -1,4 +1,5 @@
 import json
+import logging
 from typing import Optional
 from dataclasses import dataclass
 
@@ -6,6 +7,8 @@ from anthropic import Anthropic
 
 from config import get_config
 
+logger = logging.getLogger(__name__)
+
 
 SYSTEM_PROMPT = """You are an intelligent monitoring configuration assistant for Uptime Kuma. Your role is to analyze system information from hosts and recommend what should be monitored.
 
@@ -270,6 +273,13 @@ Respond with JSON as specified in your instructions."""
                     )
                 )
 
+            # Log what Claude suggested
+            for mon in monitors:
+                logger.info(
+                    f"Claude suggested monitor: {mon.name}, type={mon.type}, "
+                    f"interval={mon.interval}s, push_metric={mon.push_metric}"
+                )
+
             commands = []
             for c in data.get("additional_commands", []):
                 commands.append(