build error fixes

DockerFile

@@ -1,17 +1,21 @@
 # Stage 1: Build
 FROM node:18-alpine AS builder
 
+# Set working directory
 WORKDIR /app
 
+# Copy package files and install dependencies
 COPY package.json package-lock.json ./
 RUN npm install --production
 
+# Copy the rest of the app
 COPY . .
 
-# Build-time environment variable
-ARG NEXT_PUBLIC_API_URL=https://cmcbackend.rootxwire.com
-ENV NEXT_PUBLIC_API_URL=$NEXT_PUBLIC_API_URL
+# Pass build-time environment variable
+ARG NEXT_PUBLIC_API_URL
+ENV NEXT_PUBLIC_API_URL=${NEXT_PUBLIC_API_URL}
 
+# Build the Next.js app
 RUN npm run build
 
 # Stage 2: Run
@@ -19,18 +23,23 @@ FROM node:18-alpine AS runner
 
 WORKDIR /app
 
-COPY --from=builder /app/package.json ./
-COPY --from=builder /app/package-lock.json ./
+# Copy built app from builder
 COPY --from=builder /app/.next ./.next
 COPY --from=builder /app/public ./public
+COPY --from=builder /app/package.json ./package.json
+COPY --from=builder /app/package-lock.json ./package-lock.json
 COPY --from=builder /app/next.config.js ./next.config.js
 
+# Install only production dependencies
 RUN npm install --production
 
+# Expose port
 EXPOSE 3000
 
+# Runtime environment variables
 ENV NODE_ENV=production
-ENV NEXT_PUBLIC_API_URL=https://cmcbackend.rootxwire.com
+ENV NEXT_PUBLIC_API_URL=${NEXT_PUBLIC_API_URL}
 ENV HOST=0.0.0.0
 
+# Start the app
 CMD ["npm", "start"]