Build the frontend once per pipeline and reuse it in the dev backend image [CI]

ci/web-build.sh

@@ -11,7 +11,8 @@ dirs=(node_modules display/node_modules admin/node_modules)
 mkdir -p "$cache"
 exec 9> "$cache/.lock"
 
-key="$(cat "$web/package-lock.json" "$web/package.json" "$web/display/package.json" "$web/admin/package.json" | sha256sum | cut -c1-16)"
+# 开发构建会把版本号写进 package.json；缓存键里去掉 version 行，否则每个提交都是新的键，缓存永远命中不了
+key="$(cat "$web/package-lock.json" "$web/package.json" "$web/display/package.json" "$web/admin/package.json" | grep -v '^  "version":' | sha256sum | cut -c1-16)"
 
 restore() {
   [[ -d "$cache/$key/node_modules" ]] || return 1
@@ -57,3 +58,5 @@ failed=0
 for pid in "${pids[@]}"; do wait "$pid" || failed=1; done
 [[ "$failed" == 0 ]] || { echo "web build failed" >&2; exit 1; }
 [[ -n "${WEB_SKIP_LINT:-}" ]] || npm run lint:css --prefix "$web"
+# 开发构建（main 上带 [CI] 的提交）：前端是这条流水线的唯一一份，放进共享目录，开发镜像的 Backend 直接用（见 ci/shared-web.sh）
+[[ -z "${WEB_PUBLISH_SHARED:-}" ]] || bash "$root/ci/shared-web.sh" publish