✨ feat(vscode): 代码阅读预览问 AI 的回答里代码位置写成链接、点了能跳：提示词要求写 [名字](路径#符号) 或 [文件名:起-止](路径#L起-L止) 并给出仓库根，仓库链接认 #L 行号（注释里同一套），旧回答里整段是「路径:行」的行内代码也当链接，带行号的在预览里展开、闪包住那几行的块，不支持预览的用文本编辑器选中

vscode/src/codeReader/editor/previewEditor.ts

@@ -15,7 +15,7 @@ import type { ThemeColors } from '../theme/codeColors'
 import type { IndexFind } from '../workspaceIndex'
 import type { BlockFilter } from './blockFilter'
 import type { FoundLocation } from './definitions'
-import type { ChatKind, DefinitionPeek, ExtensionToWebview, Occurrence, Reveal, SymbolReference, WebviewToExtension } from './messages'
+import type { ChatKind, DefinitionPeek, ExtensionToWebview, LineRange, Occurrence, Reveal, SymbolReference, WebviewToExtension } from './messages'
 import type { TargetSpot } from './openTarget'
 import type { TopSubject } from './pathPreview'
 import { realpath } from 'node:fs/promises'
@@ -47,7 +47,7 @@ import { documentSymbolNodes } from './documentSymbols'
 import { FIND_CONTEXT } from './findCommands'
 import { NavigationContext, OCCURRENCES_CONTEXT } from './occurrenceNavigation'
 import { occurrencesOf } from './occurrences'
-import { languageOf, openingFor } from './openTarget'
+import { languageOf, linesSpot, openingFor, revealOf } from './openTarget'
 import { PATH_PREVIEW_SCHEME, topSubjectOf } from './pathPreview'
 import { findRepoSymbol, isRepoImagePath, repoRootOf, resolveRepoEntry } from './repoPath'
 
@@ -650,7 +650,8 @@ class Preview {
       return
     }
     const at = locateQa(subject.uri)
-    const block = at && this.sent && { path: at.promptPath, languageId: this.document.languageId, blocks: this.sent.blocks, source: this.sent.source, anchor }
+    const repoRoot = await repoRootOf(this.document.uri.fsPath)
+    const block = at && this.sent && { path: at.promptPath, languageId: this.document.languageId, blocks: this.sent.blocks, source: this.sent.source, anchor, ...(repoRoot !== undefined && { repoRoot }) }
     const prompt = block && askPrompt(block, question)
     const followUp = block && followUpPrompt(block, question)
     const refused = prompt === undefined || followUp === undefined
@@ -754,7 +755,7 @@ class Preview {
         await this.findOccurrences(msg.id, msg.version, msg.offset)
         return
       case 'openRepoLink':
-        await this.openRepoLink(msg.path, msg.symbol, msg.block)
+        await this.openRepoLink(msg.path, msg.symbol, msg.block, msg.lines)
         return
       case 'checkRepoLinks':
         await this.checkRepoLinks(msg.id, msg.paths, msg.references)
@@ -985,10 +986,11 @@ class Preview {
   }
 
   /**
-   * 打开注释里的仓库链接：目录在代码阅读侧栏的树上定位，文件用编辑器打开。
-   * 带了符号就按文档符号的名字跳过去；文件或符号没有就不打开。没有路径的是不带路径的引用，按这份文件、从它写在的那块（block）找（见 resolveSymbolLink）。
+   * 打开注释、问 AI 的回答里的仓库链接：目录在代码阅读侧栏的树上定位，文件用编辑器打开。
+   * 带了符号就按文档符号的名字跳过去，带了几行（`lines`）就跳到这几行（见 [linesSpot]）；文件或符号没有就不打开。
+   * 没有路径的是不带路径的引用，按这份文件、从它写在的那块（`block`）找（见 [resolveSymbolLink]）。
    */
-  private async openRepoLink(rel: string | undefined, symbol?: string, block?: string): Promise<void> {
+  private async openRepoLink(rel: string | undefined, symbol?: string, block?: string, lines?: LineRange): Promise<void> {
     const link = rel ?? `[${symbol}]`
     try {
       if (symbol !== undefined) {
@@ -1016,7 +1018,8 @@ class Preview {
         this.markRepoLinkOpened(rel)
         return
       }
-      await this.openElsewhere(uri)
+      const spot = lines && await linesSpot(uri, lines)
+      await (spot ? this.showSpot(uri, spot) : this.openElsewhere(uri))
       this.markRepoLinkOpened(rel)
     }
     catch (err) {
@@ -1071,14 +1074,19 @@ class Preview {
     }
   }
 
-  /** 跳到链接指的符号：在这份文件里就在本预览里滚过去、闪一下；别的文件同 ⌘ + 点击跳到定义（见 openElsewhere）。 */
+  /** 跳到链接指的符号：名字那段是要选中的范围，起点下标是预览要闪的定义处（见 [showSpot]）。 */
   private async showLinkTarget({ uri, selection }: LinkTarget): Promise<void> {
-    if (uri === this.document.uri.toString()) {
-      this.reveal({ line: this.document.positionAt(selection.startIndex).line, definition: selection.startIndex })
+    const doc = uri === this.document.uri.toString() ? this.document : await workspace.openTextDocument(Uri.parse(uri))
+    await this.showSpot(doc.uri, { range: new Range(doc.positionAt(selection.startIndex), doc.positionAt(selection.endIndex)), offset: selection.startIndex })
+  }
+
+  /** 跳到链接指的一处（符号或几行）：在这份文件里就在本预览里滚过去、闪一下；别的文件同 ⌘ + 点击跳到定义（见 [openElsewhere]）。 */
+  private async showSpot(uri: Uri, spot: TargetSpot): Promise<void> {
+    if (uri.toString() === this.document.uri.toString()) {
+      this.reveal(revealOf(spot))
       return
     }
-    const doc = await workspace.openTextDocument(Uri.parse(uri))
-    await this.openElsewhere(doc.uri, { range: new Range(doc.positionAt(selection.startIndex), doc.positionAt(selection.endIndex)), offset: selection.startIndex })
+    await this.openElsewhere(uri, spot)
   }
 
   private markRepoLinkBroken(path: string | undefined, symbol?: string, block?: string): void {