Add policy lifecycle, consent records, OAuth default-on, and terminology cleanup
- Policy lifecycle: StoredPolicy with state machine (proposed/active/
suspended/terminated/purged), consent status, timestamps, persistence
via PolicyStorage. New configArchive() and archive() presets.
- Consent records: CONSENT_NSID + ConsentRecord type, consent.json lexicon
- OAuth default-on: OAUTH_ENABLED defaults true (opt-out via =false)
- Session safety: purge leftover data on new OAuth login
- Scripts: --clean flag, fixed ports (6700/6701), check-api/health/etc
- Terminology: "dashboard" -> "app", "admin" -> "user" throughout