feat: 初始功能

Services/Printing/IPrintJobExecutor.cs

@@ -0,0 +1,9 @@
+using CloudPrint.Client.Models;
+
+namespace CloudPrint.Client.Services.Printing;
+
+public interface IPrintJobExecutor
+{
+    bool CanHandle(PrintJob job);
+    Task ExecuteAsync(PrintJob job, IProgress<int>? progress, CancellationToken cancellationToken = default);
+}