Initial commit

env.example

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+# Server Configuration
+PORT=3000
+NODE_ENV=development
+
+# Security Configuration
+ALLOW_REDEEM_DOMAINS=*
+API_SECRET=your-secret-key-here
+
+# Default Lightning Address (used when no address is provided in redeem requests)
+DEFAULT_LIGHTNING_ADDRESS=admin@your-domain.com
+
+# Rate Limiting (requests per minute)
+RATE_LIMIT=30
+
+# Logging
+LOG_LEVEL=info
+
+# CORS Configuration
+ALLOWED_ORIGINS=*