fix(printer): 修改打印机列表分隔符

- 将打印机列表的分隔符从逗号(,)更改为竖线(|)
- 避免打印机名称中包含逗号导致解析错误
- 更新打印机信息时使用新的分隔符格式

src/main/java/com/ycwl/basic/service/printer/impl/PrinterServiceImpl.java

@@ -148,7 +148,7 @@ public class PrinterServiceImpl implements PrinterService {
             return Collections.emptyList();
         }
         List<String> printers = req.getPrinters();
-        String printersStr = StringUtils.join(printers, ",");
+        String printersStr = StringUtils.join(printers, "|");
         if (!Strings.CS.equals(printersStr, printer.getPrinters())) {
             printer.setPrinters(printersStr);
             printerMapper.update(printer);