整理文件夹及架构，加入打印机页面，octo反代有问题

app/assets/THIRDPARTY_LICENSES.md

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+# Third-Party Licenses
+
+This project uses the following third-party libraries, bundled in the `assets` folder.
+
+## Frontend Libraries
+
+1. **Bootstrap v5.3** (CSS/JS)
+   - License: MIT
+   - Source: https://getbootstrap.com/
+
+2. **Bootstrap Icons**
+   - License: MIT
+   - Source: https://icons.getbootstrap.com/
+
+3. **Three.js** (including Extra Controls / Loaders)
+   - License: MIT
+   - Source: https://threejs.org/
+
+4. **GCode Preview**
+   - License: MIT
+   - Source: https://github.com/remcoder/gcode-preview
+   
+These libraries and their copyright notices belong to their respective creators. See individual source files or official repos for exact license texts.