test: Add comprehensive tests for dispatch strategies and IoT signal processing, fix SignalLossRuleProcessor bug

viewsh-module-iot/viewsh-module-iot-server/src/main/java/com/viewsh/module/iot/service/rule/clean/processor/SignalLossRuleProcessor.java

@@ -85,12 +85,12 @@ public class SignalLossRuleProcessor {
                     // 解析 deviceId 和 areaId
                     // Key 格式：iot:clean:signal:loss:{deviceId}:{areaId}
                     String[] parts = key.split(":");
-                    if (parts.length < 5) {
-                        continue;
-                    }
-
-                    Long deviceId = Long.parseLong(parts[3]);
-                    Long areaId = Long.parseLong(parts[4]);
+                    if (parts.length < 6) {
+                        continue;
+                    }
+
+                    Long deviceId = Long.parseLong(parts[4]);
+                    Long areaId = Long.parseLong(parts[5]);
 
                     // 检查超时
                     checkTimeoutForDevice(deviceId, areaId);