- audit-log: JOIN on user_profiles.id instead of auth0_sub
- backup: use userContext.userId instead of auth0Sub
- ocr: use request.userContext.userId instead of request.user.sub
- user-profile controller: use getById() with UUID instead of getOrCreateProfile()
- user-profile service: accept UUID userId for all admin-focused methods
- user-profile repository: fix admin JOIN aliases from auth0_sub to id
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>