change local to dev

docker/nextjs/Dockerfile

@@ -5,20 +5,34 @@ RUN apk add --no-cache libc6-compat
 
 WORKDIR /app
 
-# Copy dependency files first
+# Copy dependency files first (better layer caching - reinstall only when package.json changes)
 COPY sistem-km-next/package*.json ./
 
-# Install dependencies
+# Install all dependencies
 RUN npm install
 
-# Copy the rest of the application files
+# Copy the rest of the application source files
 COPY sistem-km-next/ .
 
+# --- Build-time environment variables ---
+# Next.js bakes NEXT_PUBLIC_* variables into the client-side JavaScript bundle
+# at BUILD TIME (not runtime), so they must be available here as ENV vars.
+# Coolify automatically injects these as Docker build args from the environment section.
+ARG NEXT_PUBLIC_SUPABASE_URL
+ARG NEXT_PUBLIC_SUPABASE_ANON_KEY
+ARG SUPABASE_SERVICE_ROLE_KEY
+ENV NEXT_PUBLIC_SUPABASE_URL=$NEXT_PUBLIC_SUPABASE_URL
+ENV NEXT_PUBLIC_SUPABASE_ANON_KEY=$NEXT_PUBLIC_SUPABASE_ANON_KEY
+ENV SUPABASE_SERVICE_ROLE_KEY=$SUPABASE_SERVICE_ROLE_KEY
+
+# Build the production Next.js bundle
+RUN npm run build
+
 # Expose Next.js port
 EXPOSE 3000
 
-ENV PORT 3000
+ENV PORT=3000
-ENV HOSTNAME "0.0.0.0"
+ENV HOSTNAME="0.0.0.0"
 
-# Start Next.js app in development mode
+# Start in production mode (no dev tools, no HMR, much faster)
-CMD ["npm", "run", "dev"]
+CMD ["npm", "run", "start"]