fix: restore scheduler auto-start on sqlite

src/LiveRecorder.Infrastructure/Services/FfmpegService.cs

@@ -412,10 +412,13 @@ public sealed partial class FfmpegService : IFfmpegService
             .Include(item => item.Result)
             .Where(item => item.OutputFormat == RecordOutputFormat.Mp4 &&
                            (item.Status == RecordTaskStatus.Processing ||
-                            item.Status == RecordTaskStatus.Completed))
+                             item.Status == RecordTaskStatus.Completed))
+            .ToListAsync(cancellationToken);
+
+        candidates = candidates
             .OrderBy(static item => item.UpdatedAt)
             .Take(100)
-            .ToListAsync(cancellationToken);
+            .ToList();
 
         var queuedTaskIds = new List<Guid>();
         var repairedInterruptedTasks = 0;