feat(security): persistent OAuth2 token store — Redis + Postgres (v26.06.69)#96
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…gres) + bump v26.06.69 The authz server's TokenStore was InMemoryTokenStore only -> refresh tokens lost on restart + no cross-instance revocation (multi-instance production blocker, per the ports/adapters audit). Now pluggable via pyfly.security.oauth2.token-store.provider=memory|redis|postgres: - RedisTokenStore (security/adapters/redis_token_store.py): JSON + EX ttl (refresh-token lifetime). - PostgresTokenStore (security/adapters/postgres_token_store.py): durable table, lazy idempotent create, table-name validated. Lazy injected AsyncEngine. Hexagonal: drivers obtained in the composition root + injected; no module-scope driver imports. Tests: tests/security/test_persistent_token_store.py (unit, fake clients) + tests/integration/ test_token_store_integration.py (real Redis + real Postgres). Gates: mypy --strict (636), ruff + format, full suite 3938 passed.
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Fixes the audit's multi-instance production blocker: the OAuth2 authorization server's
TokenStorewas in-memory only (refresh tokens lost on restart; no cross-instance revocation). Now pluggable viapyfly.security.oauth2.token-store.provider:RedisTokenStore(redis) — JSON values with TTL = refresh-token lifetime (self-evicting); fast distributed revocation.PostgresTokenStore(postgres) — durable/auditable rows; lazy idempotent table create; table name validated against injection.memory(default) unchanged.Hexagonal: Redis client / SQLAlchemy engine obtained in the composition root + injected; adapters import no driver at module scope. Validated against real Redis + real Postgres (testcontainers: store/find/upsert/revoke). Unit + integration tests. Gates: mypy --strict (636), ruff+format, full suite 3938.