ci: upgrade actions to Node 24 versions (checkout v5, setup-java v5, upload-artifact v7, gradle/actions setup-gradle v5)
ci: fix Modrinth version extraction and replace broken PR auto-merge with direct commit to main
Automated bump to version 7.5.0.
modrinth: managed body.md + auto-sync workflow
Adds .modrinth/body.md as the source-of-truth for the Modrinth project body, and a separate workflow that PATCHes the project on every push that touches body.md. Description fixes don't have to wait for a version bump.
Title set once via direct API call; this workflow only manages the body field. The MODRINTH_TOKEN secret used by the release workflow covers this endpoint as well.