Build AI Chief of Staff MVP: auth, mailbox sync, briefings, draft replies

Scaffolds a Next.js app with email/password auth, encrypted IMAP/SMTP/CalDAV
mailbox connections, a background sync job, Claude-generated daily briefings,
and an approve-before-send draft reply flow. Includes a clean design system
(light/dark) and deployment config (systemd unit, credential rotation script).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012o9j9RezxbZVKQMrB7oRLY

src/app/(dashboard)/logout-button.tsx

@@ -0,0 +1,19 @@
+"use client";
+
+import { useRouter } from "next/navigation";
+
+export function LogoutButton() {
+  const router = useRouter();
+
+  async function onClick() {
+    await fetch("/api/auth/logout", { method: "POST" });
+    router.push("/login");
+    router.refresh();
+  }
+
+  return (
+    <button onClick={onClick} className="btn btn-subtle btn-sm">
+      Log out
+    </button>
+  );
+}