build(web): add Dockerfile for web service

web/Dockerfile

@@ -0,0 +1,31 @@
+FROM node:20-alpine AS deps
+WORKDIR /app
+COPY package*.json ./
+RUN npm ci
+
+FROM node:20-alpine AS builder
+WORKDIR /app
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+ENV NEXT_TELEMETRY_DISABLED 1
+RUN npm run build
+
+FROM node:20-alpine AS runner
+WORKDIR /app
+
+ENV NODE_ENV production
+ENV NEXT_TELEMETRY_DISABLED 1
+
+RUN addgroup --system --gid 1001 nodejs
+RUN adduser --system --uid 1001 nextjs
+
+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
+
+USER nextjs
+
+EXPOSE 3000
+ENV PORT 3000
+
+CMD ["node", "server.js"]