Parkour - Course Builder

This is a small patch release that fixes a console error thrown when a player fell into the void while running a course on Paper 1.21.11, plus some behind-the-scenes code quality and CI improvements.

• Void-fall crash on Paper 1.21.11 — Falling into the void during a run threw IllegalArgumentException: Entity effect cannot apply to this entity in the console because Paper 1.21.11 no longer allows the ENTITY_POOF entity effect to be played on players. The smoke-poof shown when a runner is returned to their last checkpoint is now spawned as world particles instead, so void falls work cleanly again. Fixes #23 (follow-up). [PR #29]

• Restored JaCoCo code coverage reporting in CI — coverage is measured and sent to SonarCloud again. [PR #30]
• Resolved all open SonarCloud maintainability issues (test visibility, unused imports, duplicated literals, equals/compareTo contract, and more). [PR #30]
• Added CLAUDE.md repository guidance for AI-assisted development. [PR #28]

✔️ BentoBox API 3.14.0+ ✔️ Minecraft 1.21.x (Paper/Spigot) ✔️ Java 21

1. Stop your server.
2. Replace the old Parkour jar with the new one in your plugins/BentoBox/addons folder.
3. Restart the server. No config or data changes are required.

• Add CLAUDE.md by @tastybento in https://github.com/BentoBoxWorld/Parkour/pull/28
• Fix void-fall crash on Paper 1.21.11 (issue #23 follow-up) by @tastybento in https://github.com/BentoBoxWorld/Parkour/pull/29
• Code and CI cleanup: JaCoCo coverage, S5786, and SonarCloud maintainability fixes by @tastybento in https://github.com/BentoBoxWorld/Parkour/pull/30

Full Changelog: https://github.com/BentoBoxWorld/Parkour/compare/1.5.0...1.5.1