feat: add standalone web master-agent takeover page

src/app/me/master-agent/takeover/page.tsx

@@ -0,0 +1,29 @@
+import { AppShell, PageNav, StatusBar } from "@/components/app-ui";
+import { MasterAgentTakeoverClient } from "@/components/master-agent-takeover-client";
+import { requirePageSession } from "@/lib/boss-auth";
+import { getProjectAgentControls } from "@/lib/boss-data";
+import { formatTimestampLabel } from "@/lib/boss-projections";
+
+export const dynamic = "force-dynamic";
+
+export default async function MasterAgentTakeoverPage() {
+  const session = await requirePageSession();
+  const projectControls = await getProjectAgentControls("master-agent", session.account);
+
+  return (
+    <AppShell bottomNav={false}>
+      <StatusBar />
+      <PageNav title="全局接管" backHref="/conversations/master-agent" />
+      <div className="px-[18px] pb-3">
+        <div className="rounded-2xl border border-[#E5E5EA] bg-white px-4 py-4 text-[13px] leading-6 text-[#57606A]">
+          全局接管单独放在这里，不再混进提示词设置。当前登录账号：
+          <span className="font-semibold text-[#111111]">{session.account}</span>
+        </div>
+      </div>
+      <MasterAgentTakeoverClient
+        enabled={projectControls?.globalTakeoverEnabled ?? false}
+        updatedAt={projectControls?.updatedAt ? formatTimestampLabel(projectControls.updatedAt) : null}
+      />
+    </AppShell>
+  );
+}