threads now support suggested_questions

src/ai-v2/ai-v2.client.ts

@@ -9,6 +9,7 @@ export type AiV2RunResult = {
   run_id: string;
   status: 'answered' | 'escalation_offered';
   message: string;
+  suggested_questions?: string[] | null;
   escalation: { summary?: string; handoff_context?: Record<string, unknown> } | null;
 };