fix:没有链接遥控器的时候电量赋NULL

src/main/java/com/iflytop/handacid/app/core/listener/BleGamepadEventListener.java

@@ -70,7 +70,7 @@ public class BleGamepadEventListener {
             } else if (CmdId.event_ble_gamepad_disconnected.equals(cmdId)) {
                 log.info("蓝牙手柄 连接断开");
                 deviceState.getRemoteControlState().setConnected(false);
-                deviceState.getRemoteControlState().setBatteryLevel(-1);
+                deviceState.getRemoteControlState().setBatteryLevel(null);
                 deviceState.getRemoteControlState().setCharging(false);
             }
 

src/main/java/com/iflytop/handacid/app/core/state/RemoteControlState.java

@@ -19,7 +19,7 @@ public class RemoteControlState {
     private volatile boolean connected = false;
 
     @Schema(description = "当前电量（0-100%）")
-    private volatile double batteryLevel = -1;
+    private volatile Integer batteryLevel;
 
     @Schema(description = "是否正在充电")
     private volatile boolean charging = false;