docker-compose.yml became the production/R2 stack, but LOCAL_SETUP.md still
documented "docker compose up --build" against .env.example, which fails on
missing R2_ENDPOINT, SITE_DOMAIN and KANBAN_DOMAIN, and MinIO was gone.
Add compose.local.yaml: builds from source, MinIO storage, fake providers,
disposable credentials, an app database password distinct from the
administrator one, and published origins in ALLOWED_ORIGINS so browser writes
are not rejected. Correct the documented command and the Kanban login, which
listed a username the email-validated model rejects.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
