Minecraft SQLite JDBC

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.

Aligns with the body-sync pattern used in the four sibling holder repos (minecraft-{postgresql-jdbc,mysql-jdbc,mongodb-driver,jedis}).