Fix MonitorService IllegalStateException handling -created-by-agentic

[shaykeren]

The MonitorService is currently throwing unhandled IllegalStateException errors in the monitor endpoint.

Error Details:

• Error ID: b2f3824a-3655-11f0-bc70-ca59c7e8e81d
• Message: "monitor failure"
• Occurrences: 25 times between May 21 and May 30, 2025
• Criticality Score: 75

Root Cause:
The service has several design issues:

1. Improper state management
2. isRunning() always returns false
3. Unhandled exceptions in monitor() method
4. No retry mechanism
5. Intentional exception throwing for testing

Fix:
A PR has been created (#68) that implements the following improvements:

1. Added proper state management using SystemStatus enum
2. Fixed isRunning() to return actual state
3. Added retry mechanism for monitor()
4. Added proper exception handling with logging
5. Removed the intentional exception throwing

Please review and merge PR #68 to resolve this issue.