feat: Implement cutout tool and depth generation features

- Added a new cutout tool for selecting regions in images, allowing users to choose mesh shapes based on selected areas.
- Introduced depth generation capabilities for rasterized images, including normal data extraction.
- Created jobs for generating depth planes and region data, enhancing the AI data generation workflow.
- Developed a selection refinement process for cutout regions, improving accuracy in generated outputs.
- Established a new region module for handling rasterized image regions and their associated AI generation tasks.
- Enhanced node graph builders for asset generation, facilitating smoother integration of new features.

mkdocs.yml

@@ -29,6 +29,7 @@ nav:
   - 内部实现:
       - 总览: internals/index.md
       - 程序架构: internals/architecture.md
+      - Common 公共函数: internals/common.md
       - 基础设施:
           - Job Runtime 与 Server: internals/runtime.md
           - Job 产物: internals/outputs.md