Initial commit: TS3J TeamSpeak 3 Java client

Swing desktop client (core/desktop/swing Maven modules) built on the
ts3j protocol library, included as a submodule. Native Opus voice with
voice-activation detection, push-to-talk, and audio pre-processing.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,36 @@
+# Build output
+target/
+build/
+out/
+*.class
+
+# The bundled proprietary TeamSpeak 3 client (reference binary, not our source)
+/TeamSpeak3-Client-linux_amd64/
+
+# Packages
+*.jar
+*.war
+*.zip
+*.tar.gz
+
+# Logs / crash dumps
+*.log
+hs_err_pid*
+
+# IDE
+.idea/
+*.iml
+.vscode/
+.settings/
+.classpath
+.project
+
+# Maven housekeeping
+dependency-reduced-pom.xml
+pom.xml.tag
+pom.xml.releaseBackup
+pom.xml.versionsBackup
+release.properties
+
+# OS
+.DS_Store