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

.gitignore

@@ -0,0 +1,90 @@
+# Dependencies
+node_modules/
+.pnp/
+.pnp.js
+
+# Build outputs
+dist/
+build/
+.next/
+out/
+
+# Environment files
+.env
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+*.env
+
+# Database files
+*.db
+*.db-shm
+*.db-wal
+*.sqlite
+*.sqlite3
+back_end/data/
+
+# App info / documentation (internal)
+App_info/
+
+# IDE and editor files
+.idea/
+.vscode/
+*.swp
+*.swo
+*~
+.DS_Store
+Thumbs.db
+
+# Logs
+logs/
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# Testing
+coverage/
+.nyc_output/
+
+# TypeScript
+*.tsbuildinfo
+
+# Debug
+.npm
+.eslintcache
+
+# Optional npm cache directory
+.npm
+
+# Optional REPL history
+.node_repl_history
+
+# Yarn
+.yarn-integrity
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+
+# Temporary files
+tmp/
+temp/
+*.tmp
+*.temp
+
+# OS generated files
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+
+# Secrets and keys (extra safety)
+*.pem
+*.key
+secrets/
+