Replace soft-delete with anonymize + hard-delete to meet iOS App Store
data retention requirements. Non-PII fields are preserved in
anonymous_session_snapshots for analytics.
- Add anonymous_session_snapshots table and ORM model
- Implement anonymizer to extract non-PII fields before deletion
- Remove points_ledger.biz_id FK constraint (snapshot-style reference)
- Preserve transaction history while allowing session deletion
- Add 14 unit tests + 1 integration test
- Add invite code display and binding functionality via API
- Fix notification unread count sync on auth state change
- Improve notification mark read with server state validation
- Add auth state listener to trigger notification refresh
- Add YaoCoinConverter for coin-to-yao type conversion
- Remove YaoLegend from divination screens (UI cleanup)
- Abbreviate relation labels in yao detail view
- Add re-register notice to account delete screen
- Update 'coins' terminology to 'points' in localization
- Fix backend points consumption to only run in CHAT mode
- Add HttpxAuthNoiseFilter to suppress auth endpoint logging
- Fix notification static_schema import path
- Add test coverage for notification bloc error handling
- Update AGENTS.md page header rules and image handling
- Delete deprecated run-dev.sh script
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