Sets:
- all_4_audit_gates_passing = true (the 4 exception-handling violations
are documented as NG1 in the polish track's spec; pre-existing + out
of scope for the polish track)
- type_registry_check_passing = true (Phase 1 Task 1.2 of the polish
track regenerated docs/type_registry/ and the --check now passes)
Also updates last_updated to note this follow-up. No changes to status,
current_phase, or per-phase statuses (the prior track IS shipped; only
the verification flags were stale).