- GET/POST /api/portal/tickets for listing and creating tickets
- GET /api/portal/tickets/[id] for ticket detail with conversation
- GET/POST /api/portal/tickets/[id]/comments for conversation threads
- GET /api/portal/payments/coming-soon returns outstanding balance and payment instructions
- 6 integration tests: SUBSCRIBER source, staff visibility, isolation, comments, closed rejection, thread ordering
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
