Fix segmentation fault when running CLI

[asokawotulo]

Fixes: #1194

Changes:

• Replaced extruder_clearance_max_radius with extruder_clearance_radius to resolve the CLI error
• Add if (m_plater) before accessing preset_bundle in generate_logo_polygon and before generate_plate_name_texture
• Add thumbnails to export only if thumbnail callback is defined

[grepson]

I'm not fluent in cpp, but having a working cli again is a huge thing for my project. Either if it's merged or not @asokawotulo thanks for making this PR!

[asokawotulo]

I'm not fluent in cpp, but having a working cli again is a huge thing for my project. Either if it's merged or not @asokawotulo thanks for making this PR!

Happy I could help @grepson! Out of curiosity, what's the project you're working on and how do you use the CLI?

[grepson]

I'm not fluent in cpp, but having a working cli again is a huge thing for my project. Either if it's merged or not @asokawotulo thanks for making this PR!

Happy I could help @grepson! Out of curiosity, what's the project you're working on and how do you use the CLI?

@asokawotulo I'm using it to remotely slice prints into gcodes for different printers. I have already completed workflows for PrusaSlicer, SuperSlicer, Cura and thanks to this PR maybe I'll be able to add OrcaSlicer to that ❤️! I have an API written in Typescript that takes some body params and stl to slice, fires up docker container underneath and slices that file.

[asokawotulo]

I'm not fluent in cpp, but having a working cli again is a huge thing for my project. Either if it's merged or not @asokawotulo thanks for making this PR!

Happy I could help @grepson! Out of curiosity, what's the project you're working on and how do you use the CLI?

@asokawotulo I'm using it to remotely slice prints into gcodes for different printers. I have already completed workflows for PrusaSlicer, SuperSlicer, Cura and thanks to this PR maybe I'll be able to add OrcaSlicer to that ❤️! I have an API written in Typescript that takes some body params and stl to slice, fires up docker container underneath and slices that file.

@grepson Ohh interesting I'm actually also working on a similar project to remotely slice files, but with just OrcaSlicer since I only have a Bambu printer

I probably could have used Bambu Studio's CLI since that was working when I tested it, but I preferred the idea of using OrcaSlicer. Plus refreshing my C++ skills was a nice bonus

[SoftFever]

Looks good.
Thank you