chore(backup): 保存新版预审开发前的代码与文档基线

src/app/resetdata/page.tsx

@@ -0,0 +1,33 @@
+"use client";
+
+import {useState} from "react";
+import "./resetdata.css";
+
+const RESET_ENDPOINT="/api/risk-agent/project-assistant/demo/reset";
+
+export default function ResetDataPage(){
+  const [busy,setBusy]=useState(false);
+
+  async function reset(){
+    if(!window.confirm("确认恢复演示初始数据？DEMO-A、DEMO-B、DEMO-C 当前演示操作将被归档。"))return;
+    setBusy(true);
+    try{
+      const response=await fetch(RESET_ENDPOINT,{
+        method:"POST",
+        headers:{"Content-Type":"application/json","X-Xingbang-Demo-Role":"admin"},
+        body:JSON.stringify({confirmation:"RESET-DEMO-A-B-C"}),
+      });
+      const result=await response.json();
+      if(!response.ok)throw Error(typeof result.detail==="string"?result.detail:"数据恢复失败");
+      window.alert("演示数据已恢复到初始状态。");
+    }catch(error){
+      window.alert(error instanceof Error?error.message:"数据恢复失败，请稍后重试。");
+    }finally{setBusy(false)}
+  }
+
+  return <main className="reset-page">
+    <button type="button" onClick={reset} disabled={busy} aria-label="一键恢复演示数据">
+      {busy?"正在恢复……":"一键恢复演示数据"}
+    </button>
+  </main>;
+}