feat(device): 添加MQTT设备在线状态管理与Redis容错机制

- 集成Spring Integration MQTT与Eclipse Paho客户端
- 添加设备在线状态填充逻辑，支持批量查询心跳数据
- 优化Redis配置，使用Lazy初始化与通用序列化器
- 增加Redis异常处理与防重复提交Fail-Open机制
- 新增Redis设备模块常量与在线状态VO
- 完善MQTT与Redis集群连接配置

src/main/java/com/youlai/boot/config/RedisHealthConfig.java

@@ -0,0 +1,64 @@
+package com.youlai.boot.config;
+
+import io.lettuce.core.ClientOptions;
+import io.lettuce.core.SocketOptions;
+import io.lettuce.core.resource.ClientResources;
+import io.lettuce.core.resource.DefaultClientResources;
+import io.lettuce.core.resource.Delay;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Primary;
+import org.springframework.data.redis.connection.RedisConnectionFactory;
+
+import java.time.Duration;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Redis 健康检查与启动容错配置
+ * <p>
+ * 确保 Redis 不可用时程序仍能正常启动，并在 Redis 恢复后自动重连。
+ *
+ * @since 4.6.0
+ */
+@Slf4j
+@Configuration
+@ConditionalOnClass(RedisConnectionFactory.class)
+public class RedisHealthConfig {
+
+    /**
+     * 自定义 Lettuce ClientResources，增加优雅关闭和重连支持
+     */
+    @Bean(destroyMethod = "shutdown")
+    @Primary
+    public ClientResources lettuceClientResources() {
+        DefaultClientResources resources = DefaultClientResources.builder()
+                .reconnectDelay(Delay.exponential(Duration.ofSeconds(2), Duration.ofSeconds(30), 2, TimeUnit.SECONDS))
+                .build();
+        log.info("Lettuce ClientResources 初始化完成，重连延迟: 2s");
+        return resources;
+    }
+
+    /**
+     * 自定义 ClientOptions，配置断开重连策略
+     */
+    @Bean
+    @Primary
+    public ClientOptions lettuceClientOptions() {
+        ClientOptions options = ClientOptions.builder()
+                .socketOptions(SocketOptions.builder()
+                        .connectTimeout(Duration.ofSeconds(5))  // 连接超时 5 秒
+                        .keepAlive(true)                         // 启用 TCP KeepAlive
+                        .build())
+                // 断开后自动重连
+                .autoReconnect(true)
+                // 取消正在执行的命令超时（避免连接断开时命令永久挂起）
+                .cancelCommandsOnReconnectFailure(true)
+                // 连接断开时挂起的请求超时
+                .suspendReconnectOnProtocolFailure(true)
+                .build();
+        log.info("Lettuce ClientOptions 初始化完成，autoReconnect=true");
+        return options;
+    }
+}