fix: validate Georgian date conversion in financial statement application

CompanyManagment.Application/FinancialStatmentApplication.cs

@@ -106,8 +106,11 @@ public class FinancialStatmentApplication : IFinancialStatmentApplication
             debtor = command.DeptorString.MoneyToDouble();
              
         }
-           
-        var tDateGr = command.TdateFa.ToGeorgianDateTime();
+
+        if (!command.TdateFa.TryToGeorgianDateTime(out var tDateGr))
+        {
+            return op.Failed("تاریخ وارد شده صحیح نمی باشد");
+        }
         if (_financialStatmentRepository.Exists(x => x.ContractingPartyId == command.ContractingPartyId))
         {
             var financialStatment = _financialStatmentRepository.GetDetailsByContractingPartyId(command.ContractingPartyId);