Allow Genshin Repair if no dispatch token is available

Author: neon-nyan

CollapseLauncher/Classes/RepairManagement/Genshin/Repair.cs

@@ -21,6 +21,7 @@
 // ReSharper disable StringLiteralTypo
 // ReSharper disable CommentTypo
 
+#nullable enable
 namespace CollapseLauncher
 {
     internal partial class GenshinRepair
@@ -46,7 +47,15 @@ private async Task<bool> Repair(List<PkgVersionProperties> repairAssetIndex, Can
             DownloadClient downloadClient = DownloadClient.CreateInstance(client);
 
             // Get the Dispatcher Query
-            QueryProperty queryProperty = await GetCachedDispatcherQuery(downloadClient.GetHttpClient(), token);
+            QueryProperty? queryProperty = null;
+            try
+            {
+                queryProperty = await GetCachedDispatcherQuery(downloadClient.GetHttpClient(), token);
+            }
+            catch (Exception ex)
+            {
+                LogWriteLine($"An error has occurred while parsing Persistent Manifests! {ex}", LogType.Warning, true);
+            }
 
             // Iterate repair asset
             ObservableCollection<IAssetProperty> assetProperty = [.. AssetEntry];
@@ -97,7 +106,10 @@ await Parallel.ForEachAsync(
                 }
             }
 
-            await SavePersistentRevision(queryProperty, token);
+            if (queryProperty != null)
+            {
+                await SavePersistentRevision(queryProperty, token);
+            }
 
             // Duplicate ctable.dat to ctable_streaming.dat
             string   streamingAssetsPath = Path.Combine(GamePath,            $"{ExecPrefix}_Data", "StreamingAssets");
@@ -157,7 +169,7 @@ private async Task RepairAssetTypeGeneric((PkgVersionProperties AssetIndex, IAss
                 if (isUseSophonDownload)
                 {
                     ReadOnlySpan<char> splittedPath = asset.AssetIndex.remoteName.TrimStart('\\');
-                    if (!SophonAssetDictRefLookup.TryGetValue(splittedPath, out SophonAsset downloadAsSophon))
+                    if (!SophonAssetDictRefLookup.TryGetValue(splittedPath, out SophonAsset? downloadAsSophon))
                     {
                         throw new InvalidOperationException($"Asset {splittedPath} is marked as \"SophonGeneric\" but it wasn't included in the manifest");
                     }