build error fixes

DockerFile

@@ -1,23 +1,36 @@
-FROM node:18-alpine
+# Stage 1: Build
+FROM node:18-alpine AS builder
 
 WORKDIR /app
 
-# Copy package files and install dependencies
 COPY package.json package-lock.json ./
-RUN npm install
+RUN npm install --production
 
-# Copy the rest of the code
 COPY . .
 
-# Build Next.js
+# Build-time environment variable
+ARG NEXT_PUBLIC_API_URL=https://cmcbackend.rootxwire.com
+ENV NEXT_PUBLIC_API_URL=$NEXT_PUBLIC_API_URL
+
 RUN npm run build
 
+# Stage 2: Run
+FROM node:18-alpine AS runner
+
+WORKDIR /app
+
+COPY --from=builder /app/package.json ./
+COPY --from=builder /app/package-lock.json ./
+COPY --from=builder /app/.next ./.next
+COPY --from=builder /app/public ./public
+COPY --from=builder /app/next.config.js ./next.config.js
+
+RUN npm install --production
+
 EXPOSE 3000
 
-# Make sure Next.js binds to all interfaces
+ENV NODE_ENV=production
+ENV NEXT_PUBLIC_API_URL=https://cmcbackend.rootxwire.com
 ENV HOST=0.0.0.0
 
-# Optionally, set the API URL here if you want
-ENV NEXT_PUBLIC_API_URL=https://cmcbackend.rootxwire.com
-
 CMD ["npm", "start"]