Updated game rules to match latest Paper API changes, upgraded dependencies, and configured Gradle for modern plugin development. Added run-paper for testing, updated Gradle wrapper, and included executable scripts for compatibility.

gradle/wrapper/gradle-wrapper.properties

@@ -1 +1,7 @@
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-bin.zip
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.6.1-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists