✨ feat(vscode): 代码阅读入口、文件树与预览编辑器

vscode/res/reader.svg

@@ -0,0 +1,8 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+  <path d="M12 7v14"/>
+  <path d="M16 12h2"/>
+  <path d="M16 8h2"/>
+  <path d="M3 18a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1h5a4 4 0 0 1 4 4 4 4 0 0 1 4-4h5a1 1 0 0 1 1 1v13a1 1 0 0 1-1 1h-6a3 3 0 0 0-3 3 3 3 0 0 0-3-3z"/>
+  <path d="M6 12h2"/>
+  <path d="M6 8h2"/>
+</svg>