Added backups of all data, restorable on another computer (#1008)

Co-authored-by: Thorsten Sommer <SommerEngineering@users.noreply.github.com>

app/MindWork AI Studio/Dialogs/DataRestorePendingDialog.razor.cs

@@ -0,0 +1,60 @@
+using AIStudio.Components;
+using AIStudio.Tools.Services;
+
+using Microsoft.AspNetCore.Components;
+
+namespace AIStudio.Dialogs;
+
+/// <summary>
+/// Blocks AI Studio while a prepared restore waits for the restart which applies it: whatever the user
+/// changed until then would be lost. The user restarts, or discards the restore.
+/// </summary>
+public partial class DataRestorePendingDialog : MSGComponentBase
+{
+    [CascadingParameter]
+    private IMudDialogInstance MudDialog { get; set; } = null!;
+
+    [Inject]
+    private DataRestoreService DataRestoreService { get; init; } = null!;
+
+    [Inject]
+    private RustService RustService { get; init; } = null!;
+
+    private bool isWorking;
+
+    /// <summary>
+    /// Whether the runtime could not restart, e.g., in the development environment, where it did not
+    /// start the .NET server.
+    /// </summary>
+    private bool restartFailed;
+
+    private async Task RestartAsync()
+    {
+        this.isWorking = true;
+        try
+        {
+            // On success, AI Studio ends right away, and this dialog with it:
+            this.restartFailed = !await this.RustService.RestartApplication();
+        }
+        finally
+        {
+            this.isWorking = false;
+        }
+    }
+
+    private async Task DiscardAsync()
+    {
+        this.isWorking = true;
+        try
+        {
+            await this.DataRestoreService.DiscardPendingRestoreAsync();
+        }
+        finally
+        {
+            this.isWorking = false;
+        }
+
+        if (!this.DataRestoreService.IsRestorePending)
+            this.MudDialog.Close(DialogResult.Ok(false));
+    }
+}