Initial commit

Services/IFolderStructureService.cs

@@ -0,0 +1,12 @@
+using Microsoft.SharePoint.Client;
+using SharepointToolbox.Web.Core.Models;
+
+namespace SharepointToolbox.Web.Services;
+
+public interface IFolderStructureService
+{
+    Task<BulkOperationSummary<string>> CreateFoldersAsync(
+        ClientContext ctx, string libraryTitle,
+        IReadOnlyList<FolderStructureRow> rows,
+        IProgress<OperationProgress> progress, CancellationToken ct);
+}