feat(aihr): link candidates to employee principals

frontend/src/api/aihr/interview.ts

@@ -72,6 +72,13 @@ export type InterviewRecord = {
   summary: string;
 };
 
+export type CandidateLinkResponse = {
+  candidateId: string;
+  extPartyId: string;
+  status: string;
+  linkedTime: string;
+};
+
 export type CandidateMaterialReview = {
   id: number | string;
   candidateId: string;
@@ -119,6 +126,23 @@ export function listInterviewRecords(limit = 20): Promise<ApiResult<InterviewRec
   });
 }
 
+export function getCandidateEmployeeLink(candidateId: string): Promise<ApiResult<CandidateLinkResponse | null>> {
+  return request({
+    url: '/api/recruit/interview/candidate-links',
+    method: 'get',
+    params: { candidateId }
+  });
+}
+
+export function linkCandidateEmployee(candidateId: string, extPartyId: string): Promise<ApiResult<CandidateLinkResponse>> {
+  return request({
+    url: '/api/recruit/interview/candidate-links',
+    method: 'post',
+    data: { candidateId, extPartyId },
+    headers: { repeatSubmit: false }
+  });
+}
+
 export function listCandidateMaterialsForReview(status = ''): Promise<ApiResult<CandidateMaterialReview[]>> {
   return request({
     url: '/api/aihr/hr/candidate/materials',