One-time high-entropy claim URL printed at startup when the only
instance admin is local-board. Signed-in user claims ownership,
gets promoted to instance_admin, and receives active memberships
across all existing companies.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Wire up Better Auth for session-based authentication. Add actor middleware
that resolves local_trusted mode to an implicit board actor and authenticated
mode to Better Auth sessions. Add access service with membership, permission,
invite, and join-request management. Register access routes for member/invite/
join-request CRUD. Update health endpoint to report deployment mode and
bootstrap status. Enforce tasks:assign and agents:create permissions in issue
and agent routes. Add deployment mode validation at startup with guardrails
(loopback-only for local_trusted, auth config required for authenticated).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
