feat(docker) 重构Docker构建流程，使用多阶段构建并优化CI配置

docker/ui/Dockerfile

@@ -1,3 +1,25 @@
+FROM --platform=$BUILDPLATFORM node:18-alpine AS builder
+
+# 设置阿里云镜像加速
+RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
+
+# 安装pnpm
+RUN corepack enable && corepack prepare pnpm@latest --activate
+
+WORKDIR /app
+
+# 复制项目文件（包括package.json等）
+COPY ./orion-visor-ui/package.json ./orion-visor-ui/pnpm-lock.yaml* ./
+
+# 安装依赖（利用Docker缓存层）
+RUN pnpm install --frozen-lockfile
+
+# 复制源代码
+COPY ./orion-visor-ui/ .
+
+# 构建项目
+RUN pnpm build
+
 FROM --platform=$BUILDPLATFORM nginx:alpine
 # 系统时区
 ARG TZ=Asia/Shanghai
@@ -12,7 +34,7 @@ RUN ln -sf /usr/share/zoneinfo/${TZ} /etc/localtime && \
 # 删除原 nginx 配置
 RUN rm -rf /etc/nginx/conf.d/*
 # 复制包
-COPY ./dist /usr/share/nginx/html
-COPY ./nginx.conf /etc/nginx/conf.d
+COPY --from=builder /app/dist /usr/share/nginx/html
+COPY ./docker/ui/nginx.conf /etc/nginx/conf.d
 # 启动
 CMD ["nginx", "-g", "daemon off;"]