Blocks 1–5 of stabilization plan:
SECURITY
- validation.py: restore settings.upload_max_video_bytes (T-14 regression fix)
and JSON object key validation that was incorrectly removed
- MT-18: add accessible_org_ids filter to list_for_reviewer/list_for_linguist
so reviewers/linguists only see jobs from their own org in QC queue
- MT-17: add Membership.team_ids[], write to it on invitation acceptance and
direct team add/remove; migration backfills from Team.member_user_ids
- MT-19: validate all target_team_ids belong to invitation's org_id at creation
TESTS
- Restore test_cross_tenant_isolation.py (was deleted, only .pyc remained)
- Extend with MT-18 reviewer org isolation tests
QUICK WINS
- W-8: remove time.sleep(1) + dead debug block from POST /jobs (task was
undefined — would have caused NameError → HTTP 500 on every job creation)
- T-13: warn at startup when REDIS_URL configured but connection failed
- T-16: skip language_qc lifespan migration when count=0 (no DB scan on startup)
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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