clean: 清理notion文档资料中的重复文件

详细说明:
- 移除文旅和智能开发目录中的重复图片文件
- 清理font-awesome等前端资源文件
- 保留必要的文档和素材文件

影响模块:
- doc/notion文档资料/文旅/
- doc/notion文档资料/智能开发/

🤖 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>

doc/文档资料/智能开发/附件项目/assets/font-awesome/svgs/solid/angles-down.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!--! Font Awesome Free 6.6.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2024 Fonticons, Inc. --><path d="M246.6 470.6c-12.5 12.5-32.8 12.5-45.3 0l-160-160c-12.5-12.5-12.5-32.8 0-45.3s32.8-12.5 45.3 0L224 402.7 361.4 265.4c12.5-12.5 32.8-12.5 45.3 0s12.5 32.8 0 45.3l-160 160zm160-352l-160 160c-12.5 12.5-32.8 12.5-45.3 0l-160-160c-12.5-12.5-12.5-32.8 0-45.3s32.8-12.5 45.3 0L224 210.7 361.4 73.4c12.5-12.5 32.8-12.5 45.3 0s12.5 32.8 0 45.3z"/></svg>