Add dockre file

Dockerfile

@@ -0,0 +1,28 @@
+# Build stage
+FROM node:18-alpine AS builder
+WORKDIR /app
+COPY package*.json ./
+RUN npm ci --legacy-peer-deps
+COPY . .
+RUN npm run build
+
+# Production stage  
+FROM node:18-alpine AS runner
+WORKDIR /app
+
+ENV NODE_ENV=production
+
+RUN addgroup -g 1001 -S nodejs
+RUN adduser -S nextjs -u 1001
+
+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"]