Deployment Configuration

Prepare this project for production deployment:\n\n1. Environment variables:\n   - Create a .env.example file listing all required env vars with placeholder values\n   - Replace any hardcoded secrets, API URLs, or credentials with process.env references\n\n2. Build optimization:\n   - Add production build script to package.json\n   - Configure {{bundler}} for tree-shaking and code splitting\n   - Set up static asset caching headers\n\n3. Docker (if applicable):\n   - Create a multi-stage Dockerfile (build stage + production stage)\n   - Add .dockerignore for node_modules, .env, and build artifacts\n\n4. Health check:\n   - Add GET /api/health endpoint that returns { status: "ok", timestamp: Date.now() }\n\nDo not change any application logic or UI. Only add deployment infrastructure.