e1f2be7ecf
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>