优化部署脚本无更新时跳过执行

deploy_update.sh

@@ -63,6 +63,11 @@ git fetch origin && git pull origin master
 if [ $? -ne 0 ]; then echo -e "${RED}❌ Git 失败${NC}"; exit 1; fi
 AFTER_REV=$(git rev-parse HEAD 2>/dev/null || echo "")
 
+if [ -n "$BEFORE_REV" ] && [ -n "$AFTER_REV" ] && [ "$BEFORE_REV" = "$AFTER_REV" ]; then
+    echo -e "${GREEN}✅ 当前代码已是最新版本，本次没有可升级内容，跳过后续部署步骤。${NC}"
+    exit 0
+fi
+
 FRONTEND_BUILD_NEEDED=0
 FRONTEND_CHANGED_FILES=""
 MIGRATION_NEEDED=0