feat: 完成七段数码管后端

server/src/Hubs/ProgressHub.cs

@@ -33,10 +33,10 @@ public enum ProgressStatus
 [TranspilationSource]
 public class ProgressInfo
 {
-    public string TaskId { get; }
-    public ProgressStatus Status { get; }
-    public int ProgressPercent { get; }
-    public string ErrorMessage { get; }
+    public virtual string TaskId { get; } = string.Empty;
+    public virtual ProgressStatus Status { get; }
+    public virtual int ProgressPercent { get; } = 0;
+    public virtual string ErrorMessage { get; } = string.Empty;
 };
 
 [Authorize]
@@ -56,6 +56,6 @@ public class ProgressHub : Hub<IProgressReceiver>, IProgressHub
 
     public async Task<bool> Join(string taskId)
     {
-        return _tracker.BindTask(taskId, Context.ConnectionId);
+        return await Task.Run(() => _tracker.BindTask(taskId, Context.ConnectionId));
     }
 }