- Commit gradlew, gradlew.bat and gradle/wrapper so ./gradlew build works
from a fresh clone as the README instructs (Gradle 8.7)
- Fix .gitignore rule order: *.jar came after the wrapper-jar negation and
the last matching rule wins, so the wrapper jar was still ignored
- CI on push and pull request: build (grammar with -Werror), test, and
parseExamples
