Produces the single self-contained fat jar that the Python wheel mounts via --jars, for Spark 3.5.x / Scala 2.13. WHY THIS MODULE EXISTS ---------------------- The pytest plugin mounts exactly ONE jar and sets spark.sql.extensions=io.github.wpunit13.mutator.MutatorSparkExtension Therefore that one jar must contain everything the driver needs: mutator-core (MutantRegistry, hashing, catalog, reports and SessionResetFacade, all ...