feat: add hasRole helper to requireRole middleware

backend/src/middleware/requireRole.js

@@ -18,3 +18,13 @@ export default function requireRole(allowedRoles) {
     next();
   };
 }
+
+/**
+ * Helper function to check if a user has a specific role.
+ * @param {string} userRole - The role of the user.
+ * @param {string[]} requiredRoles - Array of roles required.
+ * @returns {boolean} True if the user has at least one of the required roles.
+ */
+export function hasRole(userRole, requiredRoles) {
+  return requiredRoles.includes(userRole);
+}