Feature/routes export (#29)

Co-authored-by: gorbenko.pavel <gorbenko.pavel@tansu.kz>
Reviewed-on: http://git.tnsu.kz/gorbenko.pavel/tnsu-approval-route/pulls/29

backend/Tnsu.ApprovalRoute.Infrastructure/TnsuPortal/ITnsuPortalClient.cs

@@ -20,6 +20,12 @@ public interface ITnsuPortalClient
     /// </summary>
     Task<IReadOnlyList<EmployeeContactInfo>> GetAllEmployeesAsync(CancellationToken cancellationToken);
 
+    /// <summary>Справочник компаний — /Dictionary/Companies.</summary>
+    Task<IReadOnlyList<CompanyInfo>> GetCompaniesAsync(CancellationToken cancellationToken);
+
+    /// <summary>Справочник отделов — /Dictionary/Departments.</summary>
+    Task<IReadOnlyList<DepartmentInfo>> GetDepartmentsAsync(CancellationToken cancellationToken);
+
     Task<string?> GetManagerAsync(string email, string managerType, CancellationToken cancellationToken);
 
     /// <summary>