feat(cutout_tool): Implement cutout region to shape functionality

- Added interaction helpers for cutout region validation and shape menu interaction.
- Created main operator for converting image regions into cutout shapes, including AI artifact generation.
- Introduced object creation logic for cutout shapes, handling depth and normal textures.
- Defined cutout shape identifiers and node groups for various shape types.
- Implemented depth texture writing and prediction artifact generation for MoGe-2.
- Developed server jobs for generating cutout artifacts, depth planes, and refining image regions.
- Added region refinement logic to enhance gesture masks using BEN2.

docs/guides/faq.md

@@ -39,7 +39,7 @@ Environment 或默认模型缺失不会让四个 AI 功能变灰；点击功能
 
 ## Cutout Depth Surface 边缘破碎或细节太多
 
-先增大 **Point Spacing** 降低基础网格密度，再调整 **Cleanup** 清理小块，并用 **Smooth** 稳定表面。必要时降低模型分辨率。
+先增大 **Mesh Sampling Spacing** 降低基础网格密度，再调整 **Cleanup** 清理小块，并用 **Smooth** 稳定表面。必要时降低模型分辨率。
 
 ## 动画面片不播放