新增打印模板绑定功能，支持业务与打印模板的映射配置。实现打印模板的增删改查操作，优化打印数据的生成逻辑，提升打印模板的灵活性和用户体验。同时，新增打印机查询接口，增强打印服务的可用性和实时性。

yy-admin-master/YY.Admin/Views/Print/PrintPreviewWindow.xaml.cs

@@ -23,7 +23,8 @@ public partial class PrintPreviewWindow : HandyControl.Controls.Window
     }
 
     public PrintPreviewWindow(PrintTemplate template, string? templateJson,
-        IPrintDotService? printDotService, string? selectedPrinterName)
+        IPrintDotService? printDotService, string? selectedPrinterName,
+        string? initialParamJson = null)
     {
         InitializeComponent();
         _template = template;
@@ -36,7 +37,9 @@ public partial class PrintPreviewWindow : HandyControl.Controls.Window
                               $"尺寸：{template.PaperWidthMm ?? 210}×{template.PaperHeightMm ?? 297} mm  " +
                               $"方向：{template.PaperOrientation ?? "纵向"}";
 
-        TbParamJson.Text = BuildMockParamJson(_templateJson);
+        TbParamJson.Text = !string.IsNullOrWhiteSpace(initialParamJson)
+            ? initialParamJson!
+            : BuildMockParamJson(_templateJson);
 
         // 没有 PrintDot 服务时禁用打印相关按钮
         if (_printDotService == null)