Реализация device-control-service: gRPC + MQTT + Device Shadow в Redis

Добавлен gRPC-контракт proto/device_control (TurnOn/TurnOff/SetLevel),
общий Go-модуль proto/ для переиспользования сгенерированного кода.
device-control-service принимает команды по gRPC, обновляет desired_state
в Redis и публикует их в MQTT; слушает devices/+/telemetry и devices/+/ack
для отметки живости устройства и обновления reported_state; горутина
health-check переводит устройство в offline по таймауту и публикует
событие в RabbitMQ (device.status_changed) для будущего notification-service.

Проверено сквозным тестом через docker compose: grpcurl TurnOn/SetLevel
меняет desired_state и уходит в MQTT, mosquitto_pub с ack обновляет
reported_state и статус, health-check автоматически переводит устройство
в offline по истечении таймаута.

docker-compose.yml

@@ -116,6 +116,37 @@ services:
       - home-automation
     restart: unless-stopped
 
-  # Remaining app services (device-control-service, rule-engine-service,
-  # health-check-service, esp32-emulator, laravel-app) are added here as they
-  # get implemented — see services/*/README.md for the plan for each one.
+  device-control-service:
+    build:
+      context: .
+      dockerfile: services/device-control-service/Dockerfile
+    ports:
+      - "${DEVICE_CONTROL_GRPC_PORT}:50051"
+    environment:
+      DEVICE_CONTROL_GRPC_PORT: 50051
+      MQTT_HOST: mosquitto
+      MQTT_PORT: 1883
+      REDIS_HOST: redis
+      REDIS_PORT: 6379
+      REDIS_PASSWORD: ${REDIS_PASSWORD}
+      REDIS_DB: ${REDIS_DB}
+      RABBITMQ_HOST: rabbitmq
+      RABBITMQ_PORT: 5672
+      RABBITMQ_USER: ${RABBITMQ_USER}
+      RABBITMQ_PASSWORD: ${RABBITMQ_PASSWORD}
+      DEVICE_CONTROL_HEALTHCHECK_TIMEOUT: ${DEVICE_CONTROL_HEALTHCHECK_TIMEOUT}
+      DEVICE_CONTROL_HEALTHCHECK_INTERVAL: ${DEVICE_CONTROL_HEALTHCHECK_INTERVAL}
+    depends_on:
+      mosquitto:
+        condition: service_started
+      redis:
+        condition: service_started
+      rabbitmq:
+        condition: service_healthy
+    networks:
+      - home-automation
+    restart: unless-stopped
+
+  # Remaining app services (rule-engine-service, health-check-service,
+  # esp32-emulator, laravel-app) are added here as they get implemented —
+  # see services/*/README.md for the plan for each one.