Function navigateToMessage

src/renderer/src/services/navigationService.ts:27–60

(target: NavigationTarget)

 * 完整流程：打开页面 → (仅在需要时)切换分支 → 展开折叠的 Topic → 请求滚动
 */
export async function navigateToMessage(target: NavigationTarget): Promise<void> {
  const { pageId, messageId, openPage = false, instant = true, requestScroll = true } = target

  // Step 1: 打开页面（如果需要）
  if (openPage) {
    await pagesService.openPage(pageId, true)
  }

  // Step 2: 确保消息数据已加载
  const record = await stores.message.load(pageId)

  // Step 3: 检查消息是否在当前路径中
  const currentPath = messagesService.getMessagePath(record.messages, record.leafMessageId)
  const isInCurrentPath = currentPath.some((m) => m.id === messageId)

  // Step 4: 仅当消息不在当前路径时才切换分支
  // 如果消息已在当前路径，切换分支会导致分支被重置到第一个子分支
  if (!isInCurrentPath) {
    await messagesService.switchBranch(pageId, messageId)
  }

  // Step 5: 展开包含目标消息的折叠 Topic
  await expandTopicsForMessage(pageId, messageId)

  // Step 6: 请求 UI 执行滚动
  if (requestScroll) {
    navigationVersion++
    stores.navigation.requestNavigation({
      version: navigationVersion,
      target: { pageId, messageId, instant },
      timestamp: Date.now()
    })
  }
}

// ==================== Topic 展开逻辑 ====================