feat: add service config templates and extraction script

Former-commit-id: 1de24b7eb79676d1aba9d799a58c5a753290cf52

maven-cw-elevator-application/deploy/release-bundle-templates/start.sh.template

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+# 与「星中心」V1 部署习惯对齐：本脚本与 __JAR_NAME__、bootstrap/application*.properties 位于同一目录。
+# 覆盖 JVM：设置环境变量 ELEVATOR_JAVA_OPTS（可选）；指定 Java：JAVA_HOME 或 JAVA_CMD。
+set -euo pipefail
+dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
+cd "$dir"
+JAR="__JAR_NAME__"
+if [[ ! -f "$JAR" ]]; then
+  echo "ERROR: 未找到 ${JAR}（当前目录 $(pwd)）" >&2
+  exit 1
+fi
+if [[ -n "${JAVA_CMD:-}" ]]; then
+  JAVA_EXEC="$JAVA_CMD"
+elif [[ -n "${JAVA_HOME:-}" && -x "${JAVA_HOME}/bin/java" ]]; then
+  JAVA_EXEC="${JAVA_HOME}/bin/java"
+else
+  JAVA_EXEC="/usr/lib/jvm/java-8-openjdk-amd64/bin/java"
+fi
+if [[ -z "${ELEVATOR_JAVA_OPTS:-}" ]]; then
+  ELEVATOR_JAVA_OPTS="-Xmx3072m -Xms3072m -Xmn1024m"
+fi
+# shellcheck disable=SC2086
+exec "$JAVA_EXEC" $ELEVATOR_JAVA_OPTS -jar "$JAR"