✨ feat(vscode): 代码阅读预览顶部加块筛选栏

语言插件按和语言无关的 id 报块属性（通用的由宿主从 facts 推），翻译插件起名，webview 只按 id 筛；
筛选整个工作区共用、记在 workspaceState；JavaScript 不再显示「抽象：否」「仅类型：否」

vscode/src/codeReader/editor/previewEditor.ts

@@ -1,6 +1,7 @@
 import type { CustomTextEditorProvider, Disposable, TextDocument, TextDocumentShowOptions, Uri, WebviewPanel } from 'vscode'
 import type { CodeReaderRegistry } from '../registry'
 import type { TreeSitterRuntime } from '../runtime'
+import type { BlockFilter } from './blockFilter'
 import type { Definition } from './definitions'
 import type { ExtensionToWebview, Reveal, WebviewToExtension } from './messages'
 import { commands, Range, window, workspace, WorkspaceEdit } from 'vscode'
@@ -29,13 +30,14 @@ export class PreviewEditorProvider implements CustomTextEditorProvider {
     private readonly extensionUri: Uri,
     private readonly registry: CodeReaderRegistry,
     private readonly runtime: TreeSitterRuntime,
+    private readonly filter: BlockFilter,
   ) {}
 
   resolveCustomTextEditor(document: TextDocument, panel: WebviewPanel): void {
     panel.webview.options = { enableScripts: true, localResourceRoots: [webviewUiRoot(this.extensionUri)] }
     panel.webview.html = webviewHtml(panel.webview, this.extensionUri, 'code-reader.html')
     const key = document.uri.toString()
-    const preview = new Preview(document, panel, this, this.registry, this.runtime, this.reveals.get(key))
+    const preview = new Preview(document, panel, this, this.registry, this.runtime, this.filter, this.reveals.get(key))
     this.reveals.delete(key)
     this.previews.add(preview)
     panel.onDidDispose(() => {
@@ -96,6 +98,7 @@ class Preview {
     private readonly owner: PreviewEditorProvider,
     private readonly registry: CodeReaderRegistry,
     private readonly runtime: TreeSitterRuntime,
+    private readonly filter: BlockFilter,
     /**
      * 随下一份真正发出去的文档走、只走一次：新预览第一份文档要滚到的位置，或页面正在重新加载时收不到的 reveal。
      * 之后页面因标签页切走重新加载，按 webview 自己记的位置恢复
@@ -112,6 +115,11 @@ class Preview {
         if (e.document === document && e.contentChanges.length > 0)
           this.schedulePush()
       }),
+      // 页面没 ready 时收不到，等它 ready 再随第一份文档之前补发
+      filter.subscribe((excluded) => {
+        if (this.ready)
+          this.post({ type: 'filter', excluded })
+      }),
     ]
   }
 
@@ -167,8 +175,13 @@ class Preview {
     switch (msg.type) {
       case 'ready':
         this.ready = true
+        // 先于文档发：第一份文档按筛选画，不会先整份露出来再藏
+        this.post({ type: 'filter', excluded: this.filter.excluded })
         await this.push()
         return
+      case 'setFilter':
+        await this.filter.set(msg.excluded)
+        return
       case 'edit':
         await this.applyEdit(msg.startLine, msg.endLine, msg.text)
         return