⚡ perf(vscode): 代码阅读预览的文档消息里源码和着色只带一份：块不再各带一份连子块在内的整段源码和上色，编辑框按块的编辑范围从整份源码和着色里取，5126 行的消息 4.3MB → 1.9MB

vscode/src/codeReader/editor/previewEditor.ts

@@ -402,6 +402,8 @@ class Preview {
         version: this.document.version,
         languageId: '',
         blocks: [],
+        source: '',
+        colors: { roles: [], runs: [] },
         attributes: [],
         translators: [],
         translatorId: '',