Add tools and tests for AnyImage model management and documentation

- Implement sync_models.py for preparing and uploading ONNX artifacts.
- Create build_node.py for building and validating Blender scripts.
- Add docs.py for building and previewing documentation with Mike or MkDocs.
- Introduce model_exports.py for exporting PyTorch models to ONNX format.
- Develop pack.py for packaging the project with dependencies for different platforms.
- Add test_sync_models.py to validate sync_models functionality.
- Add test_tool_commands.py to ensure repository tools have correct command scripts.
- Initialize tools package with __init__.py.

mkdocs.yml

@@ -12,20 +12,6 @@ nav:
   - 开始使用:
       - 安装与首次配置: getting-started/installation.md
       - 五分钟上手: getting-started/quick-start.md
-      - 粘贴剪贴板图片: guides/clipboard-image.md
-  - 使用指南:
-      - 选择工作流: guides/workflows.md
-      - Image 编辑工具: guides/image-tools.md
-      - Cutout: guides/cutout.md
-      - Plane: guides/mesh-plane.md
-      - Depth Plane: guides/depth-plane.md
-      - 去除背景: guides/remove-background.md
-      - 高清放大: guides/upscale.md
-      - 视频与序列帧: guides/animation.md
-      - 模型、设备与存储: guides/models-and-storage.md
-      - 常见问题: guides/faq.md
-  - 参考:
-      - 功能参考: reference/features.md
   - 内部实现:
       - 总览: internals/index.md
       - 程序架构: internals/architecture.md
@@ -102,8 +88,6 @@ plugins:
   - search
 
 markdown_extensions:
-  - attr_list
-  - md_in_html
   - mkdocs-click
   - admonition
   - pymdownx.highlight:
@@ -113,7 +97,9 @@ markdown_extensions:
   - pymdownx.inlinehilite
   - pymdownx.snippets
   - pymdownx.details
-  - pymdownx.superfences
+  - pymdownx.superfences:
+      custom_fences:
+        - name: mermaid
+          class: mermaid
   - pymdownx.tabbed:
       alternate_style: true
-