fix bug ear_protection works when the algorithm is added only on one camera

Ear protection работает только при подключении алгоритма на одну камеру. При добавлении air protection на вторую камеру отчеты не приходят с обеих камер

Look at the ear protection algorithm implementation in the camera handling code. The issue suggests a conflict when enabling the feature on multiple cameras. Start by finding where camera data is processed and reports are generated. Check for shared state or resource locking that might fail with multiple instances. Running the system with two cameras and inspecting logs would help identify the failure point.

Rédigé par le modèle d'indexation à partir du texte de l'issue.