feat(web-admin): add relatedApproval FormCreate control with picker UI

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

web-admin/src/api/oaApproval.ts

@@ -294,3 +294,40 @@ export function fetchWithdrawOaInstance(instanceId: string) {
     showSuccessMessage: true
   })
 }
+
+// ---------------------------------------------------------------------------
+// 关联审批单
+// ---------------------------------------------------------------------------
+
+export type OaRelatedSummaryField = {
+  label: string
+  value: string
+  fullWidth?: boolean
+}
+
+export type OaRelatedSummary = {
+  id: string
+  unavailable?: boolean
+  appName: string
+  applyTime: string
+  status: string
+  fields: OaRelatedSummaryField[]
+}
+
+export function fetchOaRelatedCandidates(params?: {
+  keyword?: string
+  page?: number
+  pageSize?: number
+}) {
+  return request.get<{ list: any[]; total: number; page: number; pageSize: number }>({
+    url: `${BASE}/related-candidates`,
+    params
+  })
+}
+
+export function fetchOaRelatedSummaries(ids: string[], mode: 'picker' | 'view' = 'view') {
+  return request.get<{ list: OaRelatedSummary[] }>({
+    url: `${BASE}/related-summaries`,
+    params: { ids: ids.filter(Boolean).join(','), mode }
+  })
+}