fix statistics;

rewrite availability filters;
fix availability filters;
ProtectedRoute.IsInRole helper

components/protectedRoute.tsx

@@ -68,3 +68,8 @@ export async function serverSideAuth({ req, allowedRoles }) {
     // Return the session if the user is authenticated and has the required role
     return { session };
 }
+// Static method to check if the user has a specific role
+ProtectedRoute.IsInRole = async (roleName) => {
+    const session = await getSession();
+    return session && session.user && session.user.role === roleName;
+};