fix: update typescript types for new tender detail metadata fields

frontend/lib/types.ts

@@ -133,6 +133,8 @@ export type TenderDetailInfo = {
     has_adjudication?: boolean;
     buyer_complaints?: number;
     buyer_purchases?: number;
+    guarantees?: Array<{ type: string; amount: string }>;
+    detailed_items?: Array<{ code: string; description: string }>;
   };
   error?: string;
 };