feat: 添加所有核心服务的生产环境配置文件

- 创建 application-prod.yaml 支持环境变量占位符
- 支持 Docker Compose 环境变量注入
- 支持 Nacos 配置中心覆盖
- 涵盖 5 个核心服务: gateway, system, infra, iot-server, iot-gateway

viewsh-module-iot/viewsh-module-iot-gateway/src/main/resources/application-prod.yaml

@@ -0,0 +1,86 @@
+--- #################### 注册中心 + 配置中心相关配置 ####################
+
+spring:
+  cloud:
+    nacos:
+      server-addr: ${NACOS_SERVER_ADDR:127.0.0.1:8848}
+      username: ${NACOS_USERNAME:}
+      password: ${NACOS_PASSWORD:}
+      discovery:
+        namespace: ${NACOS_NAMESPACE:}
+        group: ${NACOS_GROUP:DEFAULT_GROUP}
+        metadata:
+          version: 1.0.0
+      config:
+        namespace: ${NACOS_NAMESPACE:}
+        group: ${NACOS_GROUP:DEFAULT_GROUP}
+
+--- #################### Redis 配置 ####################
+spring:
+  data:
+    redis:
+      host: ${REDIS_HOST:127.0.0.1}
+      port: ${REDIS_PORT:6379}
+      database: ${REDIS_DATABASE:0}
+      password: ${REDIS_PASSWORD:}
+      timeout: 5000ms
+      lettuce:
+        pool:
+          max-active: 8
+          max-wait: -1ms
+          max-idle: 8
+          min-idle: 0
+
+--- #################### MQ 消息队列相关配置 ####################
+
+rocketmq:
+  name-server: ${ROCKETMQ_NAMESRV_ADDR:127.0.0.1:9876}
+
+spring:
+  rabbitmq:
+    host: ${RABBITMQ_HOST:127.0.0.1}
+    port: ${RABBITMQ_PORT:5672}
+    username: ${RABBITMQ_USERNAME:guest}
+    password: ${RABBITMQ_PASSWORD:guest}
+  kafka:
+    bootstrap-servers: ${KAFKA_BOOTSTRAP_SERVERS:127.0.0.1:9092}
+
+--- #################### 服务保障相关配置 ####################
+
+lock4j:
+  acquire-timeout: 3000
+  expire: 30000
+
+--- #################### 监控相关配置 ####################
+
+management:
+  endpoints:
+    web:
+      base-path: /actuator
+      exposure:
+        include: '*'
+
+spring:
+  boot:
+    admin:
+      client:
+        instance:
+          service-host-type: IP
+        username: ${SPRING_BOOT_ADMIN_USERNAME:admin}
+        password: ${SPRING_BOOT_ADMIN_PASSWORD:admin}
+
+logging:
+  level:
+    root: INFO
+    com.viewsh: ${LOG_LEVEL:INFO}
+  file:
+    name: ${LOG_FILE_PATH:/app/logs}/${spring.application.name}.log
+
+--- #################### 芋道相关配置 ####################
+
+viewsh:
+  demo: false
+  env:
+    tag: ${HOSTNAME:prod}
+  security:
+    mock-enable: false