修改docker脚本

Dockerfile

@@ -1,11 +1,20 @@
-FROM node:20-alpine AS base
+# 默认使用本地镜像 local-node:20-alpine（可先执行: docker tag node:20-alpine local-node:20-alpine）
+# 也可通过 --build-arg NODE_IMAGE=xxx 指定其他镜像
+ARG NODE_IMAGE=node:20-alpine
+FROM ${NODE_IMAGE} AS base
 
 FROM base AS deps
+# 国内构建若卡在 npm ci，可传 --build-arg NPM_REGISTRY=https://registry.npmmirror.com
+ARG NPM_REGISTRY=https://registry.npmjs.org/
 RUN apk add --no-cache libc6-compat
 WORKDIR /app
 COPY package.json package-lock.json ./
-# 提高超时与重试，避免内网/跨平台构建时 npm 拉包 EIDLETIMEOUT
-RUN npm config set fetch-timeout 300000 && npm config set fetch-retries 5 && npm ci
+RUN npm config set registry "$NPM_REGISTRY" \
+    && npm config set fetch-timeout 300000 \
+    && npm config set fetch-retries 5
+# 使用 BuildKit 缓存 npm 目录，二次构建更快
+RUN --mount=type=cache,target=/root/.npm \
+    npm ci
 
 # Rebuild the source code only when needed
 FROM base AS builder