결재 API 계약 보완 및 테스트 정리

lib/features/dashboard/domain/entities/dashboard_summary.dart

@@ -0,0 +1,35 @@
+import 'dashboard_kpi.dart';
+import 'dashboard_pending_approval.dart';
+import 'dashboard_transaction_summary.dart';
+
+/// 대시보드 전체 요약 응답.
+class DashboardSummary {
+  const DashboardSummary({
+    required this.generatedAt,
+    required this.kpis,
+    required this.recentTransactions,
+    required this.pendingApprovals,
+  });
+
+  /// 요약 데이터 생성 시각.
+  final DateTime? generatedAt;
+
+  /// KPI 카드 목록.
+  final List<DashboardKpi> kpis;
+
+  /// 최근 트랜잭션 목록.
+  final List<DashboardTransactionSummary> recentTransactions;
+
+  /// 결재 대기 목록.
+  final List<DashboardPendingApproval> pendingApprovals;
+
+  /// KPI를 키로 찾는다.
+  DashboardKpi? findKpi(String key) {
+    for (final kpi in kpis) {
+      if (kpi.key == key) {
+        return kpi;
+      }
+    }
+    return null;
+  }
+}