Fix integer overflow risk in duration parsing
- Added validation for trail_duration values (1, 6, 12, 24, 48, 168 hours)
- Added validation for historical_hours values (1, 3, 6, 12, 24 hours)
- Created parse_trail_duration and parse_historical_hours helper functions
- Functions return safe defaults (1 hour) for invalid input
- Prevents potential integer overflow from unchecked String.to_integer calls
- Fixed all compilation warnings by properly grouping handle_event clauses
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
Graham McIntire
133dd2cc0e