Initial commit: Lightning Lottery - Bitcoin Lightning Network powered lottery

Features:
- Lightning Network payments via LNbits integration
- Provably fair draws using CSPRNG
- Random ticket number generation
- Automatic payouts with retry/redraw logic
- Nostr authentication (NIP-07)
- Multiple draw cycles (hourly, daily, weekly, monthly)
- PostgreSQL and SQLite database support
- Real-time countdown and payment animations
- Swagger API documentation
- Docker support

Stack:
- Backend: Node.js, TypeScript, Express
- Frontend: Next.js, React, TailwindCSS, Redux
- Payments: LNbits

back_end/package.json

@@ -0,0 +1,47 @@
+{
+  "name": "lightning-lotto-backend",
+  "version": "1.0.0",
+  "description": "Lightning Lottery Backend API",
+  "main": "dist/index.js",
+  "scripts": {
+    "dev": "ts-node-dev --respawn --transpile-only src/index.ts",
+    "build": "tsc",
+    "start": "node dist/index.js",
+    "migrate": "ts-node src/database/migrate.ts",
+    "scheduler": "ts-node src/scheduler/index.ts"
+  },
+  "keywords": [
+    "bitcoin",
+    "lightning",
+    "lottery"
+  ],
+  "author": "",
+  "license": "MIT",
+  "dependencies": {
+    "@types/better-sqlite3": "^7.6.13",
+    "@types/swagger-jsdoc": "^6.0.4",
+    "@types/swagger-ui-express": "^4.1.8",
+    "axios": "^1.6.2",
+    "better-sqlite3": "^12.4.6",
+    "cors": "^2.8.5",
+    "dotenv": "^16.3.1",
+    "express": "^4.18.2",
+    "express-rate-limit": "^7.1.5",
+    "jsonwebtoken": "^9.0.2",
+    "node-cron": "^3.0.2",
+    "pg": "^8.11.3",
+    "swagger-jsdoc": "^6.2.8",
+    "swagger-ui-express": "^5.0.1"
+  },
+  "devDependencies": {
+    "@types/cors": "^2.8.17",
+    "@types/express": "^4.17.21",
+    "@types/jsonwebtoken": "^9.0.5",
+    "@types/node": "^20.10.5",
+    "@types/node-cron": "^3.0.11",
+    "@types/pg": "^8.10.9",
+    "ts-node": "^10.9.2",
+    "ts-node-dev": "^2.0.0",
+    "typescript": "^5.3.3"
+  }
+}