feat: DSL 磁力聚合 — 搜索/解析/预览/投递 + cilisousuo 源 + 中英双语 + Docker 部署

Dockerfile

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+# 语法：docker/docker-buildx 多阶段构建
+FROM node:20-alpine AS builder
+WORKDIR /app
+
+# 仅复制依赖清单，利用层缓存
+COPY package*.json ./
+RUN npm ci
+
+# 复制源码并构建 Nitro 产物到 .output/
+COPY . .
+RUN npm run build
+
+# ---------- 运行阶段 ----------
+FROM node:20-alpine AS runner
+WORKDIR /app
+ENV NODE_ENV=production \
+    HOST=0.0.0.0 \
+    PORT=3000
+
+# 只带运行所需文件，减小镜像体积
+COPY --from=builder /app/.output ./.output
+COPY --from=builder /app/node_modules ./node_modules
+COPY --from=builder /app/package.json ./package.json
+
+EXPOSE 3000
+
+# 健康检查：命中 /api/health
+HEALTHCHECK --interval=30s --timeout=5s --start-period=20s --retries=3 \
+  CMD wget -qO- http://127.0.0.1:3000/api/health >/dev/null 2>&1 || exit 1
+
+CMD ["node", ".output/server/index.mjs"]