The Review screen now has an explicit 'Lock & Build Title' step. Until the
owner locks, title/short_description stay empty (no 'ready' copy from an
unlocked AI draft). On lock the server validates the taxonomy, sets
metadata_locked=1, builds + persists the deterministic title/short_description
(owner prose wins), and returns the ready state.
- schema.sql: add metadata_locked INTEGER DEFAULT 0 to slabs
- db/__init__.py: bump _SCHEMA_SENTINELS for metadata_locked
- slabs.py: expose metadata_locked in GET; reject it in PUT (server-managed)
- review.py: POST /{id}/review action=lock path; regular review reports
stored (empty) copy until locked
- test_review.py: 8 tests covering lock gate, owner-prose-wins, stale taxonomy
- frontend/api/slabs.ts: Slab.metadata_locked, ReviewResult.locked,
ReviewInput.action, lockSlab() helper
- Review.svelte: lockMetadata() with correct commit-token ordering (bump AFTER
inner commit so the inner PUT isn't superseded), Lock button, locked banner
- e2e/m3-create.spec.ts: pare to single golden path (capture→review→lock→
ready→publish→done); mock respects optimistic concurrency (client_rev) so
stale PUTs 409 like the real backend
Live host had stale M2 slabs table (no deleted_at/server_rev) -> GET /slabs 500.
Drift check now verifies sentinel (table,column) pairs across settings/slabs/
slab_photos/sync_log; on drift drops all app-owned M3 tables and rebuilds, stamps
schema_version. Drift test now seeds M2 settings + slabs and asserts both rebuilt.
pytest 23 passed; gates exit 0.
- Add schema_version table; init_db detects a pre-M3/unknown DB (no version
row, or settings table missing the value column) and rebuilds to the clean
M3 schema, then stamps version 1
- _has_schema_version checks for a real row (empty table != versioned)
- _reset_for_tests checkpoints WAL before close (Windows handle release)
- TDD: test_schema_drift seeds the M2 settings shape, asserts rebuild + version
Fixes live 500 'no such column: value' on the UAT host (stale M2 slab_db volume).
Gates: check_requirements + check_coverage exit 0; pytest 14 passed.
Ty