feat: Add Telegram bot with group support

- Full Telegram bot implementation for Lightning Jackpot
- Commands: /start, /buy, /tickets, /wins, /address, /jackpot, /help
- Lightning invoice generation with QR codes
- Payment polling and confirmation notifications
- User state management (Redis/in-memory fallback)
- Group support with admin settings panel
- Configurable draw announcements and reminders
- Centralized messages for easy i18n
- Docker configuration included

docker-compose.yml

@@ -21,6 +21,22 @@ services:
       timeout: 5s
       retries: 5
 
+  redis:
+    image: redis:7-alpine
+    container_name: lightning-lotto-redis
+    ports:
+      - "6379:6379"
+    networks:
+      - lightning-lotto-network
+    volumes:
+      - redis_data:/data
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+    restart: unless-stopped
+
   backend:
     build:
       context: ./back_end
@@ -66,10 +82,32 @@ services:
       - lightning-lotto-network
     restart: unless-stopped
 
+  telegram-bot:
+    build:
+      context: ./telegram_bot
+      dockerfile: Dockerfile
+    container_name: lightning-lotto-telegram-bot
+    depends_on:
+      - backend
+      - redis
+    environment:
+      TELEGRAM_BOT_TOKEN: ${TELEGRAM_BOT_TOKEN}
+      API_BASE_URL: http://backend:3000
+      FRONTEND_BASE_URL: ${FRONTEND_BASE_URL:-http://localhost:3001}
+      REDIS_URL: redis://redis:6379
+      MAX_TICKETS_PER_PURCHASE: ${MAX_TICKETS_PER_PURCHASE:-100}
+      PAYMENT_POLL_INTERVAL_MS: ${PAYMENT_POLL_INTERVAL_MS:-5000}
+      PAYMENT_POLL_TIMEOUT_MS: ${PAYMENT_POLL_TIMEOUT_MS:-900000}
+      LOG_LEVEL: ${LOG_LEVEL:-info}
+      NODE_ENV: production
+    networks:
+      - lightning-lotto-network
+    restart: unless-stopped
+
 volumes:
   postgres_data:
+  redis_data:
 
 networks:
   lightning-lotto-network:
     driver: bridge
-