haven-docker v1.2.0-rc2

What's New

• Automated test suite — 9 tests covering build, binaries, entrypoint, env validation, healthcheck, and graceful shutdown
• CI integration — tests gate the GHCR push/sign pipeline
• Makefile — dev/test/release shortcuts
• Improved entrypoint — env validation and signal handling
• Healthcheck — built into compose.yml
• Updated README — Development, Testing, CI/CD, and Contributing sections

Docker Images

docker pull sudocarlos/haven:v1.2.0-rc2
docker pull ghcr.io/sudocarlos/haven-docker:main

Based on bitvora/haven v1.2.0-rc2