Add automatic snapshot release workflow on master push

[bernardladenthin]

Summary

This PR adds an automated snapshot release workflow that publishes JAR artifacts to GitHub Releases whenever code is pushed to the master branch.

Key Changes

• Trigger on master push: Added push event trigger to the release workflow that activates on commits to the master branch
• New snapshot publishing job: Added publish-snapshot job that:
  • Runs after successful package job completion
  • Downloads the built JAR artifacts
  • Deletes the previous snapshot release and tag
  • Creates a new rolling snapshot release with the current build artifacts
  • Tags the release as a prerelease pointing to the current commit
  • Includes workflow run link in release notes for traceability

Implementation Details

• The snapshot job only runs on push events to master (not on pull requests or manual dispatch)
• Uses GitHub CLI (gh) to manage the snapshot release lifecycle
• The snapshot release is always recreated, replacing the previous one (rolling release pattern)
• Includes proper permissions configuration (contents: write) for release management
• Release notes automatically include the commit SHA and link to the workflow run for easy debugging

https://claude.ai/code/session_014bbPDNVsvvcWDK3eWaWZdt