MVP-1: helpdesk core with dashboard, Telegram channel, customer portal

Next.js 16 + Drizzle/SQLite (matching ~/project-claude conventions), SSE-based
realtime updates, admin dashboard with status columns, ticket thread view,
Telegram long-polling integration (inbound + outbound), token-based customer
portal, Docker Compose packaging.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QcXH24ky6zjk2UyK5oZUPH

src/app/(admin)/layout.tsx

@@ -0,0 +1,33 @@
+import { redirect } from "next/navigation";
+import { Ticket } from "lucide-react";
+import { getCurrentSession } from "@/lib/auth/session";
+import { LogoutButton } from "./logout-button";
+import { NavLinks } from "./nav-links";
+
+export default async function AdminLayout({ children }: { children: React.ReactNode }) {
+  const session = await getCurrentSession();
+  if (!session) {
+    redirect("/login");
+  }
+
+  return (
+    <div className="flex min-h-screen flex-col bg-bg">
+      <header className="border-b border-border bg-surface">
+        <div className="mx-auto flex max-w-7xl items-center gap-6 px-6 py-3">
+          <div className="flex items-center gap-2 font-bold tracking-tight">
+            <div className="flex h-7 w-7 items-center justify-center rounded-md bg-accent text-white">
+              <Ticket size={15} strokeWidth={2.5} />
+            </div>
+            top-tickets
+          </div>
+          <NavLinks />
+          <div className="ml-auto flex items-center gap-3">
+            <span className="text-sm text-text-muted">{session.user.name}</span>
+            <LogoutButton />
+          </div>
+        </div>
+      </header>
+      <main className="mx-auto w-full max-w-7xl flex-1 px-6 py-6">{children}</main>
+    </div>
+  );
+}