CAM: 3d Surface Operation with freeform geometry crashes

### Problem description

Using the "3D Surface Operation" in the CAM workbensh with a native freecad model crashes once parameters are submitted via "OK" button. Open Cam Lib is included in the built 1.1rc (FreeCAD_1.1rc1-Windows-x86_64-py311). Preferences → CAM → Advanced → Enable OCL dependent features is enabled.

### Workbench affected?

CAM

### Steps to reproduce

[Freeform 3D Surface CAM.zip](https://github.com/user-attachments/files/24261352/Freeform.3D.Surface.CAM.zip)

### Expected behavior

Should calculate the path.

### Actual behavior

Within 5 minutes no result and no feedback though low resolution of path was chosen as in https://www.youtube.com/watch?v=8aMPp2Gp6GQ

### Development version About Info (in Safe Mode)

```shell
OS: Windows 11 build 26100
Architecture: x86_64
Version: 1.1.0rc1.20251125 (Git shallow)
Build date: 2025/11/25 17:53:08
Build type: Release
Branch: (HEAD detached at 5376760)
Hash: 53767601ea65de7cd9f6590e7d5856afc0841635
Python 3.11.14, Qt 6.8.3, Coin 4.0.3, Vtk 9.3.1, boost 1_86, Eigen3 3.4.0, PySide 6.8.3
shiboken 6.8.3, xerces-c 3.3.0, IfcOpenShell 0.8.2, OCC 7.8.1
Locale: German/Germany (de_DE)
Navigation Style/Orbit Style/Rotation Mode: Blender/Trackball/Drag at cursor
Stylesheet/Theme/QtStyle: OpenLight.qss/OpenLight/
Logical DPI/Physical DPI/Pixel Ratio: 96/94.0767/1.25
Installed mods:
* freecad.gears 1.3.0
* OpenTheme 2025.5.20
```

### Last known good version (optional)

```shell
unknown (doesnt work on 1.02 as well)
```