Fix frontend Dockerfile: use npm ci in build stage to include devDependencies

frontend/Dockerfile

@@ -1,45 +1,35 @@
-# Build stage
+# Build stage — needs all dependencies including devDependencies
 FROM node:22-alpine AS build
 
 WORKDIR /app
 
-# Copy package files and install dependencies
 COPY package*.json ./
-RUN npm ci --only=production
+RUN npm ci
 
-# Copy source code
 COPY . .
-
-# Build the app
 RUN npm run build
 
-# Production stage
+# Production stage — only production dependencies
 FROM node:22-alpine
 
-# Create app directory with non-root user
 WORKDIR /app
+
 RUN addgroup -S appgroup && adduser -S appuser -G appgroup && \
     chown -R appuser:appgroup /app
 
+# Install only production deps in the final image
+COPY --chown=appuser:appgroup package*.json ./
+RUN npm ci --only=production
+
 # Copy built assets from build stage
-COPY --from=build --chown=appuser:appgroup /app/node_modules ./node_modules
 COPY --from=build --chown=appuser:appgroup /app/.next ./.next
 COPY --from=build --chown=appuser:appgroup /app/public ./public
-COPY --from=build --chown=appuser:appgroup /app/package.json ./package.json
 COPY --from=build --chown=appuser:appgroup /app/next.config.js ./next.config.js
 
-# Security best practices
 ENV NODE_ENV=production
-RUN npm prune --production
 
-# Set permissions and switch to non-root user
 USER appuser
 
-# Create health check endpoint
-COPY --from=build --chown=appuser:appgroup /app/health.js ./health.js
-
-# Expose port
 EXPOSE 3000
 
-# Start the application
 CMD ["npm", "start"]