feat: 接入PIPL数据删除权申请/确认页面

- 新增 /privacy-policy/delete-request 页面：提交邮箱发起删除申请
- 新增 /privacy-policy/delete-confirm 页面：从邮件链接确认删除（Suspense包裹useSearchParams）
- 隐私政策页面加入删除申请入口链接

app/privacy-policy/delete-confirm/DeleteConfirmForm.tsx

@@ -0,0 +1,81 @@
+"use client";
+
+import { useState } from "react";
+import { useSearchParams } from "next/navigation";
+
+const API_BASE_URL =
+  process.env.NEXT_PUBLIC_API_URL ?? "http://localhost:8000";
+
+export default function DeleteConfirmForm() {
+  const searchParams = useSearchParams();
+  const token = searchParams.get("token");
+  const [status, setStatus] = useState<
+    "idle" | "submitting" | "done" | "error"
+  >("idle");
+  const [message, setMessage] = useState("");
+
+  async function handleConfirm() {
+    if (!token) return;
+    setStatus("submitting");
+    try {
+      const res = await fetch(
+        `${API_BASE_URL}/api/v1/custom/leads/deletion-requests/confirm/`,
+        {
+          method: "POST",
+          headers: { "Content-Type": "application/json" },
+          body: JSON.stringify({ token }),
+        },
+      );
+      const json = await res.json();
+      if (!res.ok) {
+        setMessage(json?.error?.message ?? "确认失败，请重新申请删除。");
+        setStatus("error");
+        return;
+      }
+      setMessage(json?.message ?? "已成功删除您的个人信息。");
+      setStatus("done");
+    } catch {
+      setMessage("网络错误，请稍后重试。");
+      setStatus("error");
+    }
+  }
+
+  if (!token) {
+    return (
+      <p className="text-slate-700">
+        链接无效，请从确认邮件中重新打开该链接，或前往{" "}
+        <a
+          href="/privacy-policy/delete-request"
+          className="text-primary underline"
+        >
+          申请删除个人信息
+        </a>{" "}
+        重新发起申请。
+      </p>
+    );
+  }
+
+  if (status === "done") {
+    return <p className="text-slate-700">{message}</p>;
+  }
+
+  if (status === "error") {
+    return <p className="text-red-600">{message}</p>;
+  }
+
+  return (
+    <div className="space-y-4">
+      <h1 className="text-2xl font-bold text-slate-900">确认删除个人信息</h1>
+      <p className="text-slate-700">
+        点击下方按钮将永久删除您通过表单提交给我们的个人信息，此操作不可撤销。
+      </p>
+      <button
+        onClick={handleConfirm}
+        disabled={status === "submitting"}
+        className="rounded-full bg-red-600 px-6 py-2 font-medium text-white disabled:opacity-50"
+      >
+        {status === "submitting" ? "处理中..." : "确认删除"}
+      </button>
+    </div>
+  );
+}

app/privacy-policy/delete-confirm/page.tsx

@@ -0,0 +1,15 @@
+import { Suspense } from "react";
+import type { Metadata } from "next";
+import DeleteConfirmForm from "./DeleteConfirmForm";
+
+export const metadata: Metadata = { title: "确认删除个人信息" };
+
+export default function DeleteConfirmPage() {
+  return (
+    <div className="mx-auto max-w-xl px-6 py-24">
+      <Suspense fallback={<p className="text-slate-500">加载中...</p>}>
+        <DeleteConfirmForm />
+      </Suspense>
+    </div>
+  );
+}