feat(docker): add Dockerfiles and update next.config.js for admin and storefront applications

- Introduced Dockerfiles for both admin and storefront applications to streamline the build and deployment process using multi-stage builds.
- Configured the Dockerfiles to install dependencies, build the applications, and set up a minimal runtime environment.
- Updated next.config.js for both applications to enable standalone output and set the outputFileTracingRoot for proper file tracing in a monorepo setup.

This commit enhances the containerization of the applications, improving deployment efficiency and reducing image sizes.

apps/admin/Dockerfile

@@ -0,0 +1,48 @@
+# Build context: ./out  (turbo prune admin --docker)
+# out/json/  — package.json files only   → used by deps stage for layer caching
+# out/full/  — full pruned monorepo       → used by builder stage for source
+# out/package-lock.json
+
+# ── Stage 1: deps ────────────────────────────────────────────────────────────
+FROM node:20-alpine AS deps
+
+RUN apk add --no-cache libc6-compat
+WORKDIR /app
+
+COPY json/ .
+COPY package-lock.json .
+RUN npm ci
+
+# ── Stage 2: builder ─────────────────────────────────────────────────────────
+FROM node:20-alpine AS builder
+
+WORKDIR /app
+
+COPY --from=deps /app/node_modules ./node_modules
+COPY full/ .
+
+ENV NEXT_TELEMETRY_DISABLED=1
+
+RUN npx turbo build --filter=admin
+
+# ── Stage 3: runner ──────────────────────────────────────────────────────────
+FROM node:20-alpine AS runner
+
+WORKDIR /app
+
+ENV NODE_ENV=production \
+    NEXT_TELEMETRY_DISABLED=1 \
+    HOSTNAME=0.0.0.0 \
+    PORT=3001
+
+RUN addgroup -g 1001 -S nodejs && adduser -S nextjs -u 1001
+
+COPY --from=builder --chown=nextjs:nodejs /app/apps/admin/.next/standalone ./
+COPY --from=builder --chown=nextjs:nodejs /app/apps/admin/.next/static ./apps/admin/.next/static
+COPY --from=builder --chown=nextjs:nodejs /app/apps/admin/public ./apps/admin/public
+
+USER nextjs
+
+EXPOSE 3001
+
+CMD ["node", "server.js"]

apps/admin/next.config.js

@@ -3,6 +3,8 @@ const path = require("path");
 
 /** @type {import('next').NextConfig} */
 const nextConfig = {
+  output: "standalone",
+  outputFileTracingRoot: path.join(__dirname, "../.."),
   transpilePackages: ["@repo/convex", "@repo/types", "@repo/utils"],
   turbopack: {
     root: path.join(__dirname, "..", ".."),