- Extract validateWebhookUrl, applyParams, evalCondition, calculateNextRun
to lib/utils.js so they can be tested without DB connection
- Fix cron-parser v5 API: parseExpression → CronExpressionParser.parse
- Add 31 jest tests covering all four utility functions
- Add test.yml CI workflow running jest on every push/PR
- Add jest devDependency
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>