- The four public REST routes say why they are public (viewable posts only, show_in_rest fields only, per_page cap, one view per IP per post per hour).
- Admin ternary echoes of literal strings are escaped for their context: esc_attr() in attributes, esc_html() for text; the object-cache badge is an if/else and aria-current is always printed ("false" off the current tab).
- Exceptions in the migration engine and the health cron go to TMDO_Logger instead of error_log().
- Verify: audit greps (ternary echoes 23 → 0, error_log outside the logger 0); dev36 renders 8 admin tabs with the change, no PHP notice, one aria-current="page" each.
- PR: PR-078
- TMDO_Drift_Check::fix() deletes flat rows of deleted entities and, for post groups, of posts outside the group's post types; rebuilds every other drifted entity's row from native through the new TMDO_Entity_Migration_Engine::migrate_entity() (keys without native rows become NULL, PR-066); keeps a row whose entity has no native value for the group but clears its columns (no NULL-only inserts, no deleted rows the router may join on); invalidates the row cache of each touched entity; then checks again. Native meta is never written.
- `wp tmdo drift-check <entity> --fix` (not combinable with --sample).
- Verify: DriftCheckTest fix cases (RED: method missing); dev36 --fix: post 42 rows rebuilt, 1 stray row (post 312, hp_booking in hp_draft_flags) deleted, all four entities 0 drift after, checker miss/extra 0.
- PR: PR-071
- member-backfill / member-audit take their groups from the registry (TMDO_Entity_Migration_Engine::backfillable_groups(), restored orphans excluded) instead of a hard-coded list that still named the never-registered `sso`; `--all` backfills every user group (R-2.1 had to use wp eval). TMDO_Post_Migration::backfillable_groups() now delegates to it.
- member-cutover checks the Mode_Manager result with is_wp_error(): a guarded or invalid transition used to crash with a fatal (WP_Error used as an array).
- Verify: CliMemberBackfillTest (--all and the orphan filter RED before; the --group case cannot fail under the non-throwing WP_CLI stub); dev36 `member-backfill --all --reset` 9 groups, 0 errors, checker user miss/diff/extra 0; `member-cutover --confirm` exits 1 with the Guard message, mode unchanged.
- PR: PR-068
- migrate_group() REPLACEs the whole flat row; columns without a native row fell back to their DDL default (session_count / account_flags DEFAULT 0), so every backfilled user got invented zeros. Keys with no native row are now written as NULL; required NOT NULL columns keep their default.
- Covers the cron batch path (migrate_group_batch) and clears stale flat values on re-run.
- Verify: EntityMigrationEngineDefaultsTest (3 RED on main); dev36 user/activity backfill: checker extra 123 → 0 for session_count and account_flags, miss/diff unchanged.
- PR: PR-066