add: create EmployeeController to manage employee selection for workshops

ServiceHost/Areas/Client/Controllers/EmployeeController.cs

@@ -0,0 +1,25 @@
+using _0_Framework.Application;
+using CompanyManagment.App.Contracts.Employee;
+using Microsoft.AspNetCore.Mvc;
+using ServiceHost.BaseControllers;
+
+namespace ServiceHost.Areas.Client.Controllers;
+
+public class EmployeeController:ClientBaseController
+{
+    private readonly IEmployeeApplication _employeeApplication;
+    private readonly long _workshopId;
+
+    public EmployeeController(IEmployeeApplication employeeApplication,IAuthHelper authHelper)
+    {
+        _employeeApplication = employeeApplication;
+        _workshopId = authHelper.GetWorkshopId();
+    }
+    
+    [HttpGet("select-list")]
+    public async Task<ActionResult<List<EmployeeSelectListViewModel>>> GetEmployeeSelectList()
+    {
+        var result = await _employeeApplication.WorkedEmployeesInWorkshopSelectList(_workshopId);
+        return result;
+    }
+}