DSL Compilation Layer — preprocesses .dsl.feature files by expanding DSL steps into ISA step text before BDD frameworks parse them. Also provides @Mojo for Maven generate-test-sources phase integration. ADR-0024 之獨立性要求為「不依賴 Cucumber engine / ISA 執行引擎」； 對 specformula-core 之 compile-time 依賴（ADR-0026 error taxonomy）允許。