No system Maven is installed; backend/mvnw is the correct entry point.
Updated run and verify-everything commands accordingly.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Sets up toolchain pinning, format/lint (Biome + Spotless), lefthook
pre-commit hooks, Docker Compose for Postgres, and trivial passing
tests for both stacks.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>