7 phases (A-G), ~25 tasks. Phase A-E build the new auth flow,
audit model, endpoints, OWL service, and audit UI. Phase F is the
entech rollout (manual, inline by main session per hybrid pattern).
Phase G is the post-overlap cleanup (rip out tablet_tech_id,
delete legacy endpoint, archive shopfloor service user).
Bakes in 7 known gotchas from the permissions overhaul (rules
13c, 13i, 13k, 13m, 13d, AUDIT-1, always-push-to-main) so the
implementer doesn't repeat them.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>