Initial commit - QR Master application

env.example

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+# Environment Configuration
+NODE_ENV=development
+PORT=3000
+
+# Database Configuration (PostgreSQL)
+# For local development (without Docker):
+# DATABASE_URL=postgresql://postgres:postgres@localhost:5432/qrmaster?schema=public
+# For Docker Compose:
+DATABASE_URL=postgresql://postgres:postgres@db:5432/qrmaster?schema=public
+
+# NextAuth Configuration
+NEXTAUTH_URL=http://localhost:3050
+NEXTAUTH_SECRET=your-secret-key-here-change-in-production
+
+# OAuth Providers (Optional)
+GOOGLE_CLIENT_ID=
+GOOGLE_CLIENT_SECRET=
+
+# Redis Configuration (Optional - for rate limiting and caching)
+REDIS_URL=redis://redis:6379
+
+# Security
+# Used for hashing IP addresses in analytics
+IP_SALT=your-ip-salt-here-change-in-production
+
+# Features
+ENABLE_DEMO=false
+