03 Ticket Status Changed Trigger

Branch

codex/v0.5-webhook-notification/03-ticket-status-changed-trigger

Start this branch from codex/v0.5-webhook-notification/02-project-notification-settings-ui.

Trigger notification deliveries when a ticket status actually changes.

Add a TicketStatusChanged event or equivalent internal event object.
Emit the event from the existing ticket move action only when the ticket moves to a different status.
Do not emit the event for no-op moves where the destination status is already current.
Build a reusable event payload that includes:
- project id, key, and name
- ticket id, key, title, and absolute ticket URL
- actor id and name when available
- origin status id and label
- destination status id and label
- occurred timestamp
Add a listener or action that finds enabled project notification actions for ticket_status_changed.
Queue one delivery job per matching action.
Keep existing worklog behavior for status changes.

Moving a ticket to a new status queues delivery jobs for all enabled matching actions in the ticket project.
Disabled actions are ignored.
Actions from other projects are ignored.
No-op moves do not queue delivery jobs.
Ticket movement responses and worklog entries remain unchanged.

Ticket move feature tests asserting jobs are queued for enabled matching actions.
Tests asserting disabled, foreign-project, and wrong-event actions are ignored.
Test asserting no-op moves do not dispatch notifications.
Test asserting the event payload contains the expected ticket URL and status labels.

vendor/bin/pint --dirty --format agent
php artisan test --compact tests/Feature/Projects tests/Feature/Notifications
php artisan test --compact tests/Feature/Api/TicketApiTest.php tests/Feature/Mcp
git diff --check

Commit only this ticket's changes.
Push with git push origin codex/v0.5-webhook-notification/03-ticket-status-changed-trigger.