- DEFAULT_CHAIN_ADMISSION.md: reviewed and approved, real artifact refs added - DEFAULT_DATA_IDEMPOTENT_RELEASE_GATE.md: reviewed and approved - scripts/setup_default_data.sh: idempotent init with --dry-run/--apply/artifact - scripts/test/test_default_data.sh: 4 test cases all pass - scripts/acceptance/verify_user_key_self_service.sh: Phase 0 skeleton - .gitignore: add generated artifact directories