Add questions nav links and admin unread badge

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/app/(student)/layout.tsx

@@ -44,6 +44,9 @@ export default async function StudentLayout({ children }: { children: React.Reac
           {schoolName}
         </Link>
         <div className="flex items-center gap-4">
+          <Link href="/questions" className="text-sm hover:underline" style={{ color: "var(--muted-foreground)" }}>
+            Вопросы
+          </Link>
           <Link href="/profile" className="text-sm hover:underline" style={{ color: "var(--muted-foreground)" }}>
             {session.user.name}
           </Link>

src/app/admin/layout.tsx

@@ -2,11 +2,23 @@ import { headers } from "next/headers";
 import { auth } from "@/lib/auth";
 import { redirect } from "next/navigation";
 import { AdminShell } from "@/components/admin/admin-shell";
+import { prisma } from "@/lib/prisma";
 
 export default async function AdminLayout({ children }: { children: React.ReactNode }) {
   const session = await auth.api.getSession({ headers: await headers() });
   if (!session) redirect("/login");
   if (session.user.role !== "admin") redirect("/dashboard");
 
-  return <AdminShell userName={session.user.name}>{children}</AdminShell>;
+  const questionsBadge = await prisma.studentQuestion.count({
+    where: {
+      messages: {
+        some: {
+          isRead: false,
+          author: { role: "student" },
+        },
+      },
+    },
+  });
+
+  return <AdminShell userName={session.user.name} questionsBadge={questionsBadge}>{children}</AdminShell>;
 }

src/app/curator/layout.tsx

@@ -33,6 +33,7 @@ export default async function CuratorLayout({ children }: { children: React.Reac
         <nav className="flex-1 py-3 space-y-0.5 px-2">
           <NavLink href="/curator/dashboard">Обзор</NavLink>
           <NavLink href="/curator/homework">ДЗ на проверку</NavLink>
+          <NavLink href="/curator/questions">Вопросы</NavLink>
         </nav>
         <div className="px-4 py-4" style={{ borderTop: "1px solid rgba(255,255,255,0.08)" }}>
           <p className="text-xs mb-2 truncate" style={{ color: "#888" }}>{session.user.name}</p>