Introduced a new `debugBackend` module to support debugging and development tasks. This includes configuration for PostgreSQL, Redis, Hibernate, Spring Boot, and a basic security setup. Also added required entities, repositories, and runtime hints for SnapAdmin integration.
Replaced Maven with Gradle, updating configurations and dependencies to reflect the change. Added IntelliJ IDEA project settings and updated `.gitignore` for Gradle, IDE, and OS-specific files. Refactored package names and added enhancements such as compiler arguments and environmental versioning.
