Add detailed logging for Minecraft server launch in install-service.sh to improve debugging and configuration visibility.

Server/install-service.sh

@@ -196,6 +196,27 @@ if [[ -s "./variables.txt" ]]; then
   source "./variables.txt"
 fi
 
+GAME_ARGS_REL="${NEOFORGE_ARGS_REL}"
+
+echo "==== Minecraft server launch (systemd / run-service.sh) ===="
+_JAVA_CMD="\${JAVA:-java}"
+if command -v "\$_JAVA_CMD" >/dev/null 2>&1; then
+  echo "Java: \$(command -v "\$_JAVA_CMD")"
+else
+  echo "Java: \$_JAVA_CMD"
+fi
+echo "ADDITIONAL_ARGS: \${ADDITIONAL_ARGS:-}"
+echo "JVM args (user_jvm_args.txt):"
+if [[ -f user_jvm_args.txt ]]; then
+  grep -v '^[[:space:]]*#' user_jvm_args.txt | grep -v '^[[:space:]]*$' || true
+else
+  echo "  (user_jvm_args.txt not found)"
+fi
+echo "Game/program args file: @\${GAME_ARGS_REL}"
+echo "Trailing args: \$*"
+echo "Java invocation pattern: \$_JAVA_CMD \${ADDITIONAL_ARGS:-} @user_jvm_args.txt @\${GAME_ARGS_REL} \$*"
+echo "==========================================================="
+
 # shellcheck disable=SC2086
 exec "\${JAVA:-java}" \${ADDITIONAL_ARGS:-} @user_jvm_args.txt @"${NEOFORGE_ARGS_REL}" "\$@"
 EOF