refactor(triggers): share PM status and label decisions

[aaight]

Summary

Refactors PM status-change and ready-to-process label triggers to share decision helpers while keeping provider webhook parsing local.

Card: https://trello.com/c/69fe2a6efef948343f2eb18a

Changes

• Added shared PM status helpers for status-to-agent resolution, onCreate/onMove gating, coalesce key construction, and dispatch result assembly.
• Added shared PM label helpers for Trello list, JIRA status-name, and Linear state-ID agent resolution plus label dispatch result assembly.
• Updated Trello, JIRA, and Linear status/label handlers to use the shared helpers while preserving provider-specific payload extraction and existing pipeline-capacity gate arguments.
• Updated the trigger-event static guard to recognize centralized PM dispatch builders and added focused shared-helper tests.

Testing

• npx vitest run --project unit-triggers tests/unit/triggers/shared/pm-status.test.ts tests/unit/triggers/shared/pm-label.test.ts tests/unit/triggers/status-changed.test.ts tests/unit/triggers/backlog-status-changed.test.ts tests/unit/triggers/merged-status-changed.test.ts tests/unit/triggers/jira-status-changed.test.ts tests/unit/triggers/linear-status-changed.test.ts tests/unit/triggers/label-added.test.ts tests/unit/triggers/jira-label-added.test.ts tests/unit/triggers/linear-label-added.test.ts
• npm run lint:fix
• npm run lint
• npm run typecheck
• npm test

Notes

npm run lint exits 0 with two pre-existing complexity warnings in src/integrations/alerting/_shared/materialize.ts and src/triggers/sentry/webhook-handler.ts. No docs updates were needed because this is an internal trigger refactor with no setup or public configuration changes.

🕵️ codex · gpt-5.5 · run details

[codecov]

Codecov Report

❌ Patch coverage is 99.33775% with 1 line in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/triggers/shared/pm-status.ts	98.33%	1 Missing ⚠️

📢 Thoughts on this report? Let us know!

[nhopeatall]

LGTM - I verified the shared PM status/label helpers preserve the provider-specific parsing and capacity-gate inputs, and the targeted PM trigger tests pass locally.

🕵️ codex · gpt-5.5 · run details