fix: keep imported follow-ups out of current work

They stayed on the board when a non-prior deal was attached, even though the person was prior.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/api/src/common/record-scope.ts

@@ -22,6 +22,8 @@ export type Actor = {
   scopes?: Partial<Record<DataScope, ScopeVisibility>>;
   /** off = فیلتر خاموش؛ current = کار جاری؛ archive = بایگانی اطلاعات قبل */
   priorLens?: 'off' | 'current' | 'archive';
+  /** لحظهٔ روشن شدن ماژول برای این محیط؛ فعالیت‌های ساخته‌شده قبل از آن می‌توانند قبلی باشند */
+  priorCutoff?: Date | null;
 };
 
 export type ScopedActor = Pick<Actor, 'userId' | 'role' | 'dataVisibility' | 'visibleUserIds' | 'scopes'>;