fix: Contract, TaxProfile, TaxFilingSchedule에 대해 선제적으로 GetAllAsync API 및 구현체 추가

TaxBaik.Domain/Interfaces/IContractRepository.cs

@@ -5,6 +5,7 @@ using TaxBaik.Domain.Entities;
 public interface IContractRepository
 {
     Task<int> CreateAsync(Contract contract, CancellationToken cancellationToken = default);
+    Task<IEnumerable<Contract>> GetAllAsync(CancellationToken cancellationToken = default);
     Task<Contract?> GetByIdAsync(int id, CancellationToken cancellationToken = default);
     Task<IEnumerable<Contract>> GetByClientIdAsync(int clientId, CancellationToken cancellationToken = default);
     Task<IEnumerable<Contract>> GetActiveContractsAsync(CancellationToken cancellationToken = default);