Streamlined `.drone.yml` by removing redundant test-and-jar step, introducing image caching with `cache_from`, and refining conditional triggers. Enhanced `Dockerfile` with multi-stage builds for dependency warming, test execution, and efficient package creation, alongside runtime optimizations for graceful shutdown and resource management.
Introduced JWT-based authentication with role handling using Keycloak. Added the `/me` endpoint to return user information and roles. Configured testing, Keycloak integration, and public-facing `/public/info` endpoint enhancements.
