- Change EscalationConfig to use Routes map with action strings
- Rename severity "normal" to "medium" per design doc
- Move config from config/ to settings/escalation.json
- Add --source flag for escalation source tracking
- Add Source field to EscalationFields
- Add executeExternalActions() for email/sms/slack with warnings
- Add default escalation config creation in gt install
- Add comprehensive unit tests for config loading
- Update help text with correct severity levels and paths
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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