feat: 新增对话界面锚点，支持点击跳转对应提问

desktop/src/components/chat/MessageList.tsx

@@ -7,6 +7,7 @@ import { useChatStore } from '../../stores/chatStore'
 import { useSessionStore } from '../../stores/sessionStore'
 import { useWorkspaceChatContextStore } from '../../stores/workspaceChatContextStore'
 import { SETTINGS_TAB_ID, useTabStore } from '../../stores/tabStore'
+import { MessageNavigation } from './MessageNavigation'
 import { useTeamStore } from '../../stores/teamStore'
 import { useUIStore } from '../../stores/uiStore'
 import { useTranslation } from '../../i18n'
@@ -505,6 +506,7 @@ function SelectableChatMessage({
     <div
       ref={rootRef}
       data-chat-selectable-message={role}
+      data-message-id={messageId}
       onPointerDown={(event) => {
         if (event.pointerType === 'mouse' && event.button !== 0) return
         lastSelectionPointerRef.current = getSelectionPointer(event)
@@ -1615,6 +1617,38 @@ export function MessageList({ sessionId, compact = false }: MessageListProps = {
     scrollToBottom('auto')
   }, [scrollToBottom])
 
+  const handleNavigateToMessage = useCallback((messageId: string) => {
+    const scrollToElement = () => {
+      const el = document.querySelector(`[data-message-id="${messageId}"]`)
+      if (el) {
+        el.scrollIntoView({ behavior: 'smooth', block: 'center' })
+        return true
+      }
+      return false
+    }
+
+    if (scrollToElement()) return
+
+    const container = scrollContainerRef.current
+    if (!container) return
+
+    const messageIndex = messages.findIndex((m) => m.id === messageId)
+    if (messageIndex === -1) return
+
+    const totalMessages = messages.length
+    if (totalMessages === 0) return
+
+    const scrollHeight = container.scrollHeight - container.clientHeight
+    const estimatedPosition = (messageIndex / totalMessages) * scrollHeight
+    container.scrollTop = Math.max(0, estimatedPosition - container.clientHeight / 3)
+
+    requestAnimationFrame(() => {
+      requestAnimationFrame(() => {
+        scrollToElement()
+      })
+    })
+  }, [messages])
+
   useEffect(() => {
     const content = scrollContentRef.current
     if (!content || typeof ResizeObserver === 'undefined') return
@@ -2046,6 +2080,11 @@ export function MessageList({ sessionId, compact = false }: MessageListProps = {
         </button>
       )}
 
+      <MessageNavigation
+        messages={messages}
+        onNavigate={handleNavigateToMessage}
+      />
+
       <ConfirmDialog
         open={Boolean(confirmTurnCard)}
         onClose={() => {

desktop/src/components/chat/MessageNavigation.tsx

@@ -0,0 +1,66 @@
+import { memo, useMemo } from 'react'
+import { User } from 'lucide-react'
+import type { UIMessage } from '../../types/chat'
+
+type MessageNavigationProps = {
+  messages: UIMessage[]
+  onNavigate: (messageId: string) => void
+}
+
+type NavigationItem = {
+  id: string
+  label: string
+}
+
+function getNavigationLabel(message: UIMessage): string {
+  if (message.type === 'user_text') {
+    const text = message.content.trim()
+    return text.length > 30 ? text.slice(0, 30) + '...' : text || '用户消息'
+  }
+  return '消息'
+}
+
+export const MessageNavigation = memo(function MessageNavigation({
+  messages,
+  onNavigate,
+}: MessageNavigationProps) {
+  const navItems = useMemo(() => {
+    const items: NavigationItem[] = []
+    for (const message of messages) {
+      if (message.type === 'user_text') {
+        items.push({
+          id: message.id,
+          label: getNavigationLabel(message),
+        })
+      }
+    }
+    return items
+  }, [messages])
+
+  if (navItems.length === 0) {
+    return null
+  }
+
+  return (
+    <div className="absolute right-0 top-0 bottom-0 w-[220px] overflow-y-auto py-4 pl-2 pr-4">
+      <div className="sticky top-0 rounded-lg border border-[var(--color-border)] bg-[var(--color-surface-container-low)] p-2 shadow-sm">
+        <div className="mb-2 px-2 text-[11px] font-semibold uppercase tracking-wider text-[var(--color-text-tertiary)]">
+          消息导航
+        </div>
+        <div className="flex flex-col gap-0.5">
+          {navItems.map((item) => (
+            <button
+              key={item.id}
+              type="button"
+              onClick={() => onNavigate(item.id)}
+              className="group flex items-center gap-2 rounded-md px-2 py-1.5 text-left text-[12px] text-[var(--color-text-secondary)] transition-colors hover:bg-[var(--color-surface-hover)]"
+            >
+              <User size={12} strokeWidth={2} className="shrink-0 text-[var(--color-text-tertiary)]" />
+              <span className="min-w-0 truncate">{item.label}</span>
+            </button>
+          ))}
+        </div>
+      </div>
+    </div>
+  )
+})