初始化模版工程

components/nova-sdk/message-list/message-item/FactCheck.tsx

@@ -0,0 +1,52 @@
+import React from 'react'
+import { cn } from '@/utils/cn'
+import type { MessageContent, UserInteraction } from '../../types'
+import type { BaseEvent } from '../../types'
+import { ContentMessage } from './ContentMessage'
+
+export interface FactCheckProps {
+  content?: MessageContent
+  userInteraction?: UserInteraction
+  base?: BaseEvent
+  isUserInput: boolean
+  showUserFile: boolean
+}
+
+/**
+ * 事实核查消息组件 - 带引用内容的消息展示，对应 next-agent FactCheck
+ */
+function InnerFactCheck({
+  content,
+  userInteraction,
+  isUserInput,
+  showUserFile,
+}: FactCheckProps) {
+  if (!content && !userInteraction) return null
+
+  return (
+    <div
+      className={cn('flex flex-col rounded-xl w-full', {
+        'mt-9 mb-0 px-3': showUserFile,
+        'my-9': isUserInput && !showUserFile,
+      })}
+    >
+      <ContentMessage
+        content={content}
+        userInteraction={userInteraction}
+        isUserInput={isUserInput}
+        showUserFile={showUserFile}
+      />
+      {content?.refer_content && (
+        <div className="mt-3 w-full">
+          <div className="px-3 py-2 rounded-lg border border-border/60 bg-muted/40 text-xs text-muted-foreground leading-relaxed">
+            <span className="font-medium text-foreground/70 mr-1">引用：</span>
+            {content.refer_content}
+          </div>
+        </div>
+      )}
+    </div>
+  )
+}
+
+export const FactCheck = React.memo(InnerFactCheck)
+export default FactCheck