fix: Drone 打包命令对自定义环境变量使用 $${}，避免版本被预处理成空

Co-authored-by: Cursor <cursoragent@cursor.com>

.drone.yml

@@ -2,6 +2,12 @@
 # 镜像与包名固定为 v1.1.0（与现网 .env / 部署习惯一致），便于生产升级时不必改镜像标签
 # 产物：/root/zkxw-releases/zkxw-docker-deploy-v1.1.0.tar.gz
 # 脚本：./scripts/package-docker-deploy.sh
+#
+# docker.sock 与 /releases 由 runner 环境变量 DRONE_RUNNER_VOLUMES 注入，
+# 勿在本文件再声明同路径 host volume，否则会 Duplicate mount point。
+#
+# 注意：Drone 会对 commands 里的 ${VAR} 做预处理替换；自定义环境变量请用 $${VAR}
+# 或直接写死版本号，避免变成空字符串。
 
 kind: pipeline
 type: docker
@@ -17,35 +23,22 @@ trigger:
 clone:
   depth: 1
 
-volumes:
-  - name: dockersock
-    host:
-      path: /var/run/docker.sock
-  - name: releases
-    host:
-      path: /root/zkxw-releases
-
 steps:
   - name: package-docker
     image: docker:27-cli
-    # 通过挂载宿主机 docker.sock 构建，无需 privileged（未 trusted 时 privileged 会被拒绝）
-    volumes:
-      - name: dockersock
-        path: /var/run/docker.sock
-      - name: releases
-        path: /releases
     environment:
       DOCKER_BUILDKIT: '1'
       NODE_MAX_OLD_SPACE_SIZE: '3072'
       NPM_REGISTRY: https://registry.npmmirror.com
       PIP_INDEX_URL: https://mirrors.aliyun.com/pypi/simple/
       PIP_TRUSTED_HOST: mirrors.aliyun.com
-      # 固定交付版本（勿改为 DRONE_TAG，生产 .env 使用 v1.1.0）
       ZKXW_DEPLOY_VERSION: v1.1.0
     commands:
       - set -eu
       - apk add --no-cache bash git python3
-      - echo "==> git tag=${DRONE_TAG:-none} deploy_version=${ZKXW_DEPLOY_VERSION} commit=${DRONE_COMMIT}"
+      # 固定 v1.1.0；$${ } 防止 Drone 预处理把自定义变量掏空
+      - export ZKXW_DEPLOY_VERSION="$${ZKXW_DEPLOY_VERSION:-v1.1.0}"
+      - echo "==> git tag=${DRONE_TAG:-none} deploy_version=$${ZKXW_DEPLOY_VERSION} commit=${DRONE_COMMIT}"
       - chmod +x scripts/package-docker-deploy.sh scripts/build-docker-images.sh
       - |
         if [ -f /releases/.deploy-docker.env ]; then
@@ -53,8 +46,8 @@ steps:
           cp /releases/.deploy-docker.env deploy/docker/.env
           echo "using /releases/.deploy-docker.env for secret inject"
         fi
-      - ./scripts/package-docker-deploy.sh "${ZKXW_DEPLOY_VERSION}"
+      - ./scripts/package-docker-deploy.sh "$${ZKXW_DEPLOY_VERSION}"
       - mkdir -p /releases
-      - cp -v dist/zkxw-docker-deploy-"${ZKXW_DEPLOY_VERSION}".tar.gz /releases/
-      - ls -lh /releases/zkxw-docker-deploy-"${ZKXW_DEPLOY_VERSION}".tar.gz
-      - sha256sum /releases/zkxw-docker-deploy-"${ZKXW_DEPLOY_VERSION}".tar.gz
+      - cp -v dist/zkxw-docker-deploy-"$${ZKXW_DEPLOY_VERSION}".tar.gz /releases/
+      - ls -lh /releases/zkxw-docker-deploy-"$${ZKXW_DEPLOY_VERSION}".tar.gz
+      - sha256sum /releases/zkxw-docker-deploy-"$${ZKXW_DEPLOY_VERSION}".tar.gz