- Add POST /routines/:id/trigger as canonical endpoint for manual routine triggers
- Keep POST /routines/:id/run as backward-compatible alias with identical behavior
- Remove duplicate recordRun calls from routine route handlers (persistence handled by RoutineRunner.completeRoutineExecution)
- Update webhook auth to return 401 instead of 403 for missing/invalid signature headers
- Add comprehensive tests for /trigger endpoint and double-persist fix