Building and testing

Use the Makefile targets to work with the entire workspace:

• make build compiles every crate in debug mode.
• make test runs all unit tests and the behaviour tests powered by rstest-bdd.
• make check-fmt, make lint, and make fmt mirror the repository quality gates described in AGENTS.md.
• make json-schema regenerates the published TeiDocument JSON Schema snapshots under schemas/.
• make validate-xml generates XML fixtures and validates them against the TEI Episodic Profile Relax NG schema using jing. This requires jing to be installed (see "External XML validation" below).