- api/app.py: email/calendar/files provisioning now best-effort (non-fatal); fixed email_manager.create_email_user call to include domain argument
- tests/integration: added module-level auth sessions to all integration test files; added admin auth to api fixture and _resolve_admin_pass() helper; added TEST_PEER_PASSWORD constant; added password to peer creation calls
- tests/test_peer_provisioning.py: renamed rollback test to reflect new best-effort semantics (email failure no longer causes rollback)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>