初始化模版工程

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

@@ -0,0 +1,72 @@
+import React from 'react'
+import { cn } from '@/utils/cn'
+import type { MessageContent, UserInteraction, BaseEvent } from '../../types'
+import { MarkdownContent } from '../../task-panel/Preview/MarkdownPreview'
+import { UserInteractionWidget } from './user-interaction'
+
+export interface ContentMessageProps {
+  content?: MessageContent
+  userInteraction?: UserInteraction
+  base?: BaseEvent
+  isUserInput: boolean
+  showUserFile: boolean
+  onSendMessage?: (content: string) => void
+}
+
+/**
+ * 内容消息组件 - 渲染文本内容与用户交互，对应 next-agent ContentMessage/FactCheck
+ */
+function InnerContentMessage({
+  content,
+  userInteraction,
+  isUserInput,
+  showUserFile,
+  onSendMessage,
+}: ContentMessageProps) {
+  const text = content?.content || content?.text
+
+  if (!text && !userInteraction) return null
+
+  return (
+    <div
+      className={cn('flex flex-col w-full', {
+        'items-end': isUserInput,
+        'items-start': !isUserInput,
+        'mt-9 mb-0 px-3': showUserFile,
+        'my-9': isUserInput && !showUserFile,
+      })}
+    >
+      {text && (
+        <div
+          className={cn(
+            'max-w-[80%]',
+            isUserInput
+              ? 'bg-gray-900 text-white rounded-2xl rounded-tr-sm'
+              : 'text-gray-900',
+          )}
+        >
+          {isUserInput ? (
+            <div className="whitespace-pre-wrap py-3 px-4 break-words leading-relaxed text-sm">
+              {text}
+            </div>
+          ) : (
+            <MarkdownContent content={text} className="[&_p]:mt-0" />
+          )}
+        </div>
+      )}
+
+      {userInteraction && (
+        <div className="w-full max-w-[80%]">
+          <UserInteractionWidget
+            userInteraction={userInteraction}
+            disabled={false}
+            onSendMessage={onSendMessage}
+          />
+        </div>
+      )}
+    </div>
+  )
+}
+
+export const ContentMessage = React.memo(InnerContentMessage)
+export default ContentMessage