On every push/PR: run Domain.Tests, then docker compose build to validate
the full stack still builds. On push to master: also docker compose up -d
to redeploy. COMPOSE_PROJECT_NAME is pinned to ruvdstests so a run from a
runner-managed checkout always targets the existing stack/volumes instead
of spinning up a duplicate under a different project name.
Full-stack F# (Domain/Server/Client via Fable+Elmish+Feliz), PostgreSQL
persistence via Dapper, Docker Compose deployment. Student quiz-taking flow
with time-limit enforcement and focus-loss tracking, Teacher question bank
and quiz builder with results analytics, Admin user management.
