Modify dockerfile to use bun and production build

Dockerfile

@@ -1,19 +1,46 @@
 # Base image
-FROM node:22
+FROM oven/bun:1 AS base  
 
 # Set working directory
 WORKDIR /app
 
-# Install dependencies
+# Install dependencies with bun
-COPY package.json package-lock.json ./
+FROM base AS deps
-RUN npm install
+COPY package.json bun.lock* ./
+RUN bun install --no-save --frozen-lockfile
+
+# Rebuild the source code only when needed
+FROM base AS builder
+WORKDIR /app
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+RUN bunx prisma generate
+
+# Uncomment the following line in case you want to disable telemetry during the build.
+ENV NEXT_TELEMETRY_DISABLED=1
 
 # Copy the rest of the code
-COPY . .
+RUN bun run build
-RUN npx prisma generate
+
+# Production image, copy all the files and run next
+FROM base AS runner
+WORKDIR /app
+
+ENV NEXT_TELEMETRY_DISABLED=1
+
+ENV NODE_ENV=production \
+    PORT=3000 \
+    HOSTNAME="0.0.0.0"
+
+RUN groupadd --system --gid 1001 nodejs && \
+    useradd --system --uid 1001 --no-log-init -g nodejs 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 the dev port
 EXPOSE 3000
 
-# Run dev server
+CMD ["bun", "./server.js"]
-CMD ["npm", "run", "dev"]