feat(broadcast): finish multi-role insight experience

frontend/src/api/aihr/broadcast.ts

@@ -7,6 +7,7 @@ type ApiResult<T> = {
 };
 
 export type BroadcastStatus = 'PUBLISHED' | 'WITHDRAWN';
+export type BroadcastInsightStatus = 'NOT_PROCESSED' | 'PENDING' | 'READY' | 'PARTIAL' | 'FAILED';
 
 export type BroadcastTargetRequest = {
   projectCodes: string[];
@@ -51,6 +52,8 @@ export type BroadcastAttachment = {
   summary?: string;
   errorMessage?: string;
   downloadUrl?: string;
+  insightStatus?: BroadcastInsightStatus;
+  perspectiveLabels?: string[];
 };
 
 export type BroadcastAdminPage = {