- rstack-identity.ts: throttle server session validation to every 5min,
add reason detail to all auth-change events (signin/signout/revoked/
refresh/persona-switch), remove redundant location.reload on signout
- shell.ts: skip UI side-effects on token refresh, only redirect home
on genuine signout/revocation
- server.ts: add PUT to CORS allowMethods
- folk-inbox-client.ts: pass auth token on mailbox API fetch
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>