build(docker): reduce runtime image size

Dockerfile

@@ -16,11 +16,6 @@ COPY package.json pnpm-lock.yaml pnpm-workspace.yaml ./
 RUN --mount=type=cache,id=cozsweet-pnpm-store,target=/pnpm/store,sharing=locked \
   pnpm install --frozen-lockfile --prefer-offline
 
-FROM base AS prod-deps
-COPY package.json pnpm-lock.yaml pnpm-workspace.yaml ./
-RUN --mount=type=cache,id=cozsweet-pnpm-store,target=/pnpm/store,sharing=locked \
-  pnpm install --prod --frozen-lockfile --prefer-offline
-
 FROM base AS builder
 ARG NEXT_ENV_FILE=.env.local
 ENV CI=true
@@ -49,7 +44,6 @@ RUN addgroup --system --gid 1001 nodejs \
 COPY --from=builder /app/public ./public
 COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
 COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
-COPY --from=prod-deps --chown=nextjs:nodejs /app/node_modules ./node_modules
 COPY --from=builder --chown=nextjs:nodejs /app/src/app/sw.ts ./src/app/sw.ts
 
 USER nextjs

next.config.ts

@@ -9,7 +9,7 @@ import { withSerwist } from "@serwist/turbopack";
  *
  * 容器化部署模型：`output: "standalone"` + Docker Compose。
  *   - `pnpm build` 产出 .next/standalone、.next/static、public。
- *   - Dockerfile 运行 `node server.js`，并保留生产依赖以支持 Serwist 运行时生成 SW。
+ *   - Dockerfile 运行 `node server.js`，仅复制 standalone traced runtime 依赖。
  */
 const nextConfig: NextConfig = {
   output: "standalone",