Prep build setup for stack

web-app/Dockerfile

@@ -6,17 +6,17 @@ WORKDIR /app
 # Copy package files first to leverage Docker's build cache
 COPY package*.json ./
 
-# Install all dependencies needed for the build
-RUN npm install
+# Install dependencies
+RUN npm ci --only=production=false
 
 # Copy the rest of your application code
 COPY . .
 
-# Run the build script to compile the React frontend
+# Build the React application
 RUN npm run build
 
-# Expose the port your server will listen on
+# Expose the port
 EXPOSE 3000
 
-# The command to start your production server
-CMD ["npm", "run", "host"]
+# Use preview mode for production-like serving
+CMD ["npm", "run", "preview"]