feat(web-admin): make nested relatedApproval count jump to first instance

Uses relatedIds from enrichment so screen stays count-only without nested cards.

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

web-admin/src/api/oaApproval.ts

@@ -303,6 +303,8 @@ export type OaRelatedSummaryField = {
   label: string
   value: string
   fullWidth?: boolean
+  /** 嵌套关联审批单的 instanceId 列表（可跳转 / 打印递归） */
+  relatedIds?: string[]
 }
 
 export type OaRelatedSummary = {