Three new session-scoped endpoints for posting session documentation
to linked PSA tickets:
- GET /sessions/{id}/psa-post/preview — generates PSA-formatted content,
fetches ticket details and available statuses, counts previous posts
- POST /sessions/{id}/psa-post — posts note to CW ticket with optional
status update, logs all actions in psa_post_log audit trail
- GET /sessions/{id}/psa-posts — returns post history for the session
New schemas: PsaPostRequest, PsaPostResponse, PsaPreviewResponse,
PsaPostLogResponse.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>