fix: eliminar REDIS_HOST hardcodeado 'redis' en todos los archivos

- docker-compose.prod.yml: REDIS_HOST=redis → ${REDIS_HOST:-127.0.0.1}
  eliminados servicios redis/worker/maintenance (usan Coolify/Supervisor)
- .env, .env.docker: REDIS_HOST=redis → 127.0.0.1 (fallback seguro)
- .env.example: actualizado con comentario de Coolify
- health.php: fallback 'redis' → '127.0.0.1'
- PHP files (RedisQueue, ConversationState, etc.) ya usaban getenv() correctamente

docker-compose.prod.yml

@@ -33,9 +33,9 @@ services:
       - DB_USER=${DB_USER:-usite_whatsapp_user}
       - DB_PASS=${DB_PASS}
       
-      # Redis
-      - REDIS_HOST=redis
-      - REDIS_PORT=6379
+      # Redis — gestionado por Coolify (configurar REDIS_HOST en env vars)
+      - REDIS_HOST=${REDIS_HOST:-127.0.0.1}
+      - REDIS_PORT=${REDIS_PORT:-6379}
       - REDIS_PASSWORD=${REDIS_PASSWORD:-}
       
       # WhatsApp API
@@ -54,9 +54,6 @@ services:
       - PHP_MAX_EXECUTION_TIME=300
       - PHP_OPCACHE_ENABLE=1
       
-    depends_on:
-      redis:
-        condition: service_healthy
     networks:
       - whatsapp-network
     healthcheck:
@@ -66,96 +63,15 @@ services:
       retries: 3
       start_period: 30s
 
-  # Redis para colas y caché
-  redis:
-    image: redis:7-alpine
-    container_name: whatsapp-redis
-    restart: always
-    command: >
-      redis-server 
-      --appendonly yes 
-      --maxmemory 128mb 
-      --maxmemory-policy allkeys-lru
-    volumes:
-      - redis-data:/data
-    networks:
-      - whatsapp-network
-    healthcheck:
-      test: ["CMD", "redis-cli", "ping"]
-      interval: 10s
-      timeout: 3s
-      retries: 5
-
-  # Workers para procesamiento en background
-  worker:
-    build:
-      context: .
-      dockerfile: Dockerfile.worker
-    container_name: whatsapp-worker
-    restart: always
-    volumes:
-      - app-logs:/var/www/html/logs
-    environment:
-      - TZ=America/Bogota
-      - APP_ENV=production
-      - APP_DEBUG=false
-      - DB_HOST=${DB_HOST:-mysql}
-      - DB_PORT=${DB_PORT:-3306}
-      - DB_NAME=${DB_NAME:-usite_whatsapp_bot}
-      - DB_USER=${DB_USER:-usite_whatsapp_user}
-      - DB_PASS=${DB_PASS}
-      - REDIS_HOST=redis
-      - REDIS_PORT=6379
-      - REDIS_PASSWORD=${REDIS_PASSWORD:-}
-      - LOG_LEVEL=WARNING
-    depends_on:
-      redis:
-        condition: service_healthy
-    networks:
-      - whatsapp-network
-    command: php worker.php --daemon
-
-  # Mantenimiento automatizado - PRODUCCIÓN
-  maintenance:
-    build:
-      context: .
-      dockerfile: Dockerfile.maintenance
-    container_name: whatsapp-maintenance-prod
-    restart: always
-    cap_add:
-      - SYS_NICE
-      - SETGID
-      - SETUID
-    volumes:
-      - app-logs:/var/www/html/logs
-      - ./backups:/backups
-      - maintenance-cron-logs:/var/log/cron
-    environment:
-      - TZ=America/Bogota
-      - APP_ENV=production
-      - DB_HOST=${DB_HOST:-mysql}
-      - DB_PORT=${DB_PORT:-3306}
-      - DB_NAME=${DB_NAME:-usite_whatsapp_bot}
-      - DB_USER=${DB_USER:-usite_whatsapp_user}
-      - DB_PASS=${DB_PASS}
-      - REDIS_HOST=redis
-      - REDIS_PORT=6379
-      - APP_URL=http://app
-    depends_on:
-      redis:
-        condition: service_healthy
-    networks:
-      - whatsapp-network
+  # Redis: gestionado como Database Resource en Coolify (externo)
+  # Worker: corre dentro del contenedor app vía Supervisor
+  # Maintenance: deshabilitado en Coolify
 
 volumes:
-  redis-data:
-    driver: local
   app-logs:
     driver: local
   app-uploads:
     driver: local
-  maintenance-cron-logs:
-    driver: local
 
 networks:
   whatsapp-network: