feat(cecotec): support zone cleaning iterations

[godiak]

Adds Cecotec/Conga zone cleaning iteration support.

Changes:

• Repeats the cleanAreas payload according to the requested iteration count.
• Keeps the existing Cecotec zone coordinate conversion unchanged.
• Does not change segment cleaning, room ordering, or repeatClean behavior.

This allows iterations=2 for zone cleaning by sending each selected zone twice in the area cleaning request.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud