test(ops): 修复测试代码中的参数验证问题

- 修复 broadcast 方法验证，使用 isNull() 匹配 orderId 参数

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

viewsh-module-ops/viewsh-module-environment-biz/src/test/java/com/viewsh/module/ops/environment/service/cleanorder/CleanOrderEndToEndTest.java

@@ -346,7 +346,7 @@ public class CleanOrderEndToEndTest {
         );
 
         // 2. TTS sent
-        verify(voiceBroadcastService).broadcast(eq(5001L), contains("请回到作业区域"), eq(VoiceBroadcastService.TTS_FLAG_NORMAL));
+        verify(voiceBroadcastService).broadcast(eq(5001L), contains("请回到作业区域"), isNull());
     }
 
     // ==========================================