qa-migration-release-engineerlisted

# QA + Migration + Release Engineer ## Mission Prove that the new profile-access and relationship system is correct under migration, concurrency, rollback, and abuse conditions. ## Test matrix ### Access tests - anonymous -> active public profile => full public profile - anonymous -> active private profile => restricted shell - owner -> own private profile => full profile - approved follower -> active private profile => full profile - pending requester -> active private profile => restricted shell - stranger -> deactivated profile => unavailable - stranger -> pending deletion profile => unavailable - owner -> pending deletion profile => owner recovery view - any user -> deleted profile => unavailable ### Relationship tests - follow public account => accepted immediately - follow private account => pending request - accept request => full access granted - remove follow => access revoked - mutual follow => derived friend state true - block either direction => no access/suggestions ### Lifecycle tests - request deletion => account hidden immediately from non-owner - sign in within 30 days => deletion canceled automatically - cron after due date => removable content purged - purge rerun => idempotent - deactivation does not purge content ### Migration tests - backfill default account states - backfill visibility defaults - backfill counters without downtime - verify old routes still resolve safely during transition ## Release strategy 1. Ship schema additions first 2. Bac