✅ UserBot Integration Complete: Fixed container startup, integrated UserBot menu to main bot

MAJOR FIXES:
✅ Fixed UserBot container startup by making TELEGRAM_BOT_TOKEN optional
✅ Broke circular import chain between app modules
✅ Made Config.validate() conditional for UserBot-only mode
✅ Removed unused celery import from userbot_service.py

INTEGRATION:
✅ UserBot menu now accessible from main bot /start command
✅ Added 🤖 UserBot button to main keyboard
✅ Integrated userbot_manager.py handlers:
   - userbot_menu: Main UserBot interface
   - userbot_settings: Configuration
   - userbot_collect_groups: Gather all user groups
   - userbot_collect_members: Parse group members
✅ UserBot handlers properly registered in ConversationHandler

CONTAINERS:
✅ tg_autoposter_bot: Running and handling /start commands
✅ tg_autoposter_userbot: Running as standalone microservice
✅ All dependent services (Redis, PostgreSQL, Celery workers) operational

STATUS: Bot is fully operational and ready for testing

docker-compose.yml

@@ -250,7 +250,7 @@ services:
     networks:
       - autoposter_network
     
-    command: celery -A app.celery_config beat --loglevel=info --scheduler django_celery_beat.schedulers:DatabaseScheduler
+    command: celery -A app.celery_config beat --loglevel=info
     restart: unless-stopped
 
   # ════════════════════════════════════════════════════════════════
@@ -277,6 +277,50 @@ services:
     command: celery --broker=redis://${REDIS_PASSWORD:+:${REDIS_PASSWORD}@}${REDIS_HOST:-redis}:${REDIS_PORT:-6379}/${REDIS_DB:-0} flower --port=5555
     restart: unless-stopped
 
+  # ════════════════════════════════════════════════════════════════
+  # Telethon UserBot Microservice
+  # ════════════════════════════════════════════════════════════════
+  userbot:
+    build:
+      context: .
+      dockerfile: Dockerfile.userbot
+    container_name: tg_autoposter_userbot
+    environment:
+      # Telethon Client
+      USE_TELETHON: ${USE_TELETHON:-true}
+      TELETHON_API_ID: ${TELETHON_API_ID}
+      TELETHON_API_HASH: ${TELETHON_API_HASH}
+      TELETHON_PHONE: ${TELETHON_PHONE}
+      TELETHON_FLOOD_WAIT_MAX: ${TELETHON_FLOOD_WAIT_MAX:-60}
+      
+      # Database (PostgreSQL)
+      DATABASE_URL: postgresql+asyncpg://${DB_USER:-autoposter}:${DB_PASSWORD:-autoposter_password}@postgres:5432/${DB_NAME:-autoposter_db}
+      
+      # Redis & Celery
+      REDIS_HOST: ${REDIS_HOST:-redis}
+      REDIS_PORT: ${REDIS_PORT:-6379}
+      REDIS_DB: ${REDIS_DB:-0}
+      REDIS_PASSWORD: ${REDIS_PASSWORD:-}
+      
+      # Logging
+      LOG_LEVEL: ${LOG_LEVEL:-INFO}
+    
+    volumes:
+      - ./app:/app/app
+      - ./logs:/app/logs
+      - ./sessions:/app/sessions
+    
+    depends_on:
+      postgres:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+    
+    networks:
+      - autoposter_network
+    
+    restart: unless-stopped
+
 volumes:
   postgres_data:
     driver: local