add docker

Dockerfile

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+# Stage 1: Dependencies
+FROM node:20-alpine AS deps
+RUN apk add --no-cache libc6-compat
+WORKDIR /app
+
+# Copy package files
+COPY package.json package-lock.json ./
+RUN npm ci
+
+# Stage 2: Builder
+FROM node:20-alpine AS builder
+WORKDIR /app
+
+# Copy dependencies from deps stage
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+
+# Build the application
+RUN npm run build
+
+# Stage 3: Runner
+FROM node:20-alpine AS runner
+WORKDIR /app
+
+ENV NODE_ENV=production
+
+# Add non-root user
+RUN addgroup -g 1001 -S nodejs
+RUN adduser -S nuxtjs -u 1001
+
+# Copy built application
+COPY --from=builder --chown=nuxtjs:nodejs /app/.output ./.output
+
+# Switch to non-root user
+USER nuxtjs
+
+# Expose the port
+EXPOSE 3000
+
+# Start the application
+CMD ["node", ".output/server/index.mjs"]