初始化模版工程

components/nova-sdk/nova-chat/ChatHeader.tsx

@@ -0,0 +1,27 @@
+import React from 'react'
+import { Card, CardHeader, CardTitle } from '@/components/ui/card'
+
+export interface ChatHeaderProps {
+  /** 头部内容：可以是字符串标题或自定义 React 节点 */
+  header?: React.ReactNode
+}
+
+export function ChatHeader({ header }: ChatHeaderProps) {
+  if (!header) return null
+
+  return (
+    <Card className="rounded-none border-x-0 border-t-0">
+      <CardHeader className="h-[50px] p-0 justify-center">
+        {typeof header === 'string' ? (
+          <div className="px-6 flex items-center h-full">
+            <CardTitle className="text-base">{header}</CardTitle>
+          </div>
+        ) : (
+          <div className="px-4 py-3 flex items-center h-full">
+            <h1 className="text-lg font-semibold">{header}</h1>
+          </div>
+        )}
+      </CardHeader>
+    </Card>
+  )
+}