feat: add endpoint to retrieve distinct workshops for roll call reporting

ServiceHost/Areas/Admin/Controllers/RollCallController.cs

@@ -1,4 +1,5 @@
 using _0_Framework.Application;
+using AccountManagement.Application.Contracts.Account;
 using Microsoft.AspNetCore.Mvc;
 using Query.AdminReports.Handlers;
 using Query.AdminReports.Models;
@@ -27,6 +28,18 @@ public class RollCallController:AdminBaseController
         return result;
     }
 
+    [HttpGet("report/workshops-select-list")]
+    public ActionResult<List<WorkshopSelectList>> GetWorkshopsSelectList()
+    {
+        var result = _workshopWithRollCallHandler.Handle(new WorkshopWithRollCallServiceQueryParameters())
+            .Select(x => new WorkshopSelectList
+            {
+                Id = x.WorkshopId,
+                WorkshopFullName = x.WorkshopName
+            }).Distinct().ToList();
+        return result;
+    }
+    
     [HttpGet("repoert/workfloecount/{workshopId}")]
     public async Task<ActionResult<int>> GetWorkFlowCountByWorkshopId(long workshopId)
     {