Headless and stateless over the ArtifactStore SPI (filesystem by default; a cloud backend is selected through ArtifactStoreProvider.resolve via {@code JENESIS_STORE}). It runs on a Spring Boot virtual-thread stack ({@code RepositoryApplication}, the module's declared main) with Actuator observability and Spring Security gating the wire, dispatching to the ServiceLoader-discovered formats over the framework-neutral core. Open so Spring can reflect over the beans and controller.