architecture.md gains a Managed credential custody section: the single
refresh owner, the store-port lock, per-process single flight, typed
revoked and refresh-failed answers, the provider descriptor token fields
and the one token request, the mode x role gates, custody-only
completions, verification layer and follow-ups by id. The spotify finding
now matches the removed spiverse profile; JOYSTICK joins the provider env
lists. implementation-plan and service-contract lose two stale lines.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>