Merge pull request #83 from AlexandreVassard/fix/game-scheduler-race-condition

Merge pull request #84 from AlexandreVassard/refactor/java25

chore: update Docker, CI, and docs for JDK 25

fix: use wildcard classpath in run scripts

feat: upgrade to JDK 25 with updated dependencies

chore: upgrade Gradle wrapper from 7.4 to 9.3.1

fix: race condition in GameScheduler causing NullPointerException at startup

feat(docker): add development compose file with watch mode and phpMyAdmin

fix(docker): remove RCON port exposure from compose.yml

fix(docker): enable graceful shutdown

fix(docker): use non-intrusive healthcheck

chore(docker): upgrade to alpine:3.23

chore(docker): use JRE, non-root user, and better layer caching

chore(docker): remove versioning

10 seconds is too long