- Add missing notifications for priority_changed and due_date_changed events
- Publish priority_changed and due_date_changed flags from UpdateIssue handler
- Add details JSONB column to inbox_item (migration 019) for structured change data
- Store from/to values in details for status, priority, assignee, and due_date changes
- Notification titles now use plain issue title; details carry structured context
- Add human-readable label maps (statusLabels, priorityLabels) in notification listeners
- Update inbox handler responses to include details field
- Frontend: InboxDetailLabel renders rich subtitles per notification type
- Status: "Set status to ● In Progress" with StatusIcon
- Priority: "Set priority to ◆ High" with PriorityIcon
- Assigned: "Assigned to Bob" with resolved actor name
- Due date: "Set due date to Apr 20"
- Comment: truncated comment body preview
- Frontend: HoverCard on inbox items shows issue title + description context
- Add due_date_changed to InboxItemType and typeLabels
- Add tests for priority_changed and due_date_changed notifications
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>