fix: Playwright 전메뉴 기능테스트로 발견한 화면 버그 4건 수정

- products: /api/products 가 bare 배열 반환 → PageResponse 정렬(PageHelper).
  contracts/rules-commission 의 products?.list.map 크래시 + products 빈목록 동시 해결
- grade-eval: gradeEvalRules 가 PageResponse(.list) 추출하도록 수정 (rowData.map 크래시)
- batch: batch.ts 를 실제 백엔드(/settlement/run body, /jobs/{id}, /jobs)로 정렬 +
  VO필드(jobId/currentStep/processedCount/finishedAt/durationSec) 어댑터 매핑

검증: Playwright 84화면 재실행 FAIL 7→3 (잔여 3건은 미구현 /api/report/*)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

ga-frontend/src/api/batch.ts

@@ -29,19 +29,60 @@ export interface BatchHistoryResp {
   errorMessage?: string;
 }
 
+/** 백엔드 batch_job_log VO (실제 응답 형태) */
+interface BatchJobVO {
+  jobId: number;
+  jobName: string;
+  status: string;            // REQUESTED | STARTED | COMPLETED | FAILED
+  currentStep?: string;
+  totalCount?: number;
+  processedCount?: number;
+  errorCount?: number;
+  errorMessage?: string;
+  startedAt?: number[] | string;
+  finishedAt?: number[] | string;
+  durationSec?: number;
+}
+
+/** LocalDateTime 배열([y,M,d,h,m,s,..]) → 'YYYY-MM-DD HH:mm:ss' */
+function fmtTs(v?: number[] | string): string | undefined {
+  if (v == null) return undefined;
+  if (typeof v === 'string') return v;
+  const [y, mo, d, h = 0, mi = 0, s = 0] = v;
+  const p = (n: number) => String(n).padStart(2, '0');
+  return `${y}-${p(mo)}-${p(d)} ${p(h)}:${p(mi)}:${p(s)}`;
+}
+
+function mapStatus(s: string): BatchJobLogResp['status'] {
+  if (s === 'STARTED') return 'RUNNING';
+  if (s === 'REQUESTED' || s === 'RUNNING' || s === 'COMPLETED' || s === 'FAILED') return s;
+  return 'RUNNING';
+}
+
+/** 백엔드 VO → 프론트 BatchJobLogResp 어댑터 */
+function toJobLog(v: BatchJobVO): BatchJobLogResp {
+  return {
+    jobLogId: v.jobId,
+    jobName: v.jobName,
+    status: mapStatus(v.status),
+    stepName: v.currentStep,
+    totalCount: v.totalCount,
+    successCount: v.processedCount,
+    errorCount: v.errorCount,
+    startedAt: fmtTs(v.startedAt),
+    endedAt: fmtTs(v.finishedAt),
+    durationMs: v.durationSec != null ? v.durationSec * 1000 : undefined,
+    errorMessage: v.errorMessage,
+  };
+}
+
 export const batchRunApi = {
   run: (settleMonth: string, companyCode?: string) =>
-    unwrap<number>(
-      api.post('/api/batch/settlement/run', null, {
-        params: { settleMonth, companyCode },
-      }),
-    ),
+    unwrap<number>(api.post('/api/batch/settlement/run', { settleMonth, companyCode })),
   status: (jobLogId: number) =>
-    unwrap<BatchJobLogResp>(
-      api.get('/api/batch/settlement/status', { params: { jobLogId } }),
-    ),
+    unwrap<BatchJobVO>(api.get(`/api/batch/jobs/${jobLogId}`)).then(toJobLog),
   history: (size = 10) =>
-    unwrap<BatchHistoryResp[]>(
-      api.get('/api/batch/settlement/history', { params: { size } }),
+    unwrap<BatchJobVO[]>(api.get('/api/batch/jobs')).then((rows) =>
+      rows.slice(0, size).map(toJobLog) as BatchHistoryResp[],
     ),
 };

ga-frontend/src/api/operation.ts

@@ -153,9 +153,9 @@ export const operationApi = {
   hqSettleDelete: (id: number) =>
     unwrap<void>(api.delete(`/api/hq-settles/${id}`)),
 
-  // GradeEval Rules
+  // GradeEval Rules — 백엔드는 PageResponse({list}) 반환이므로 .list 추출
   gradeEvalRules: () =>
-    unwrap<GradeEvalRuleRow[]>(api.get('/api/grade-evaluations/rules')),
+    unwrap<{ list: GradeEvalRuleRow[] }>(api.get('/api/grade-evaluations/rules')).then((r) => r.list ?? []),
   gradeEvalRuleGet: (id: number) =>
     unwrap<GradeEvalRuleRow>(api.get(`/api/grade-evaluations/rules/${id}`)),
   gradeEvalRuleCreate: (body: Partial<GradeEvalRuleRow>) =>