feat:取消系统自带软键盘设计，改为系统自用键盘组件-初步

feat:将打印分为图片打印和命令式打印-初步

lib/common/services/database/entity/print_history_entity.dart

@@ -29,6 +29,10 @@ class PrintHistoryEntity {
   /// 发票图片地址
   String invoiceUrl;
 
+  /// 后端拼装的凭证打印指令流（Base64 的 ESC/POS 字节）。
+  /// 旧后端或历史任务无指令时为空，指令打印模式下回退 [invoiceUrl] 图片打印。
+  String? printCmd;
+
   /// 服务端凭证类型、打印序号与重试版本。
   String printType;
   int printNo;
@@ -59,6 +63,7 @@ class PrintHistoryEntity {
     required this.serviceOrderId,
     required this.servicePrintId,
     required this.invoiceUrl,
+    this.printCmd,
     this.printType = '1',
     this.printNo = 1,
     this.retryVersion = 0,

lib/common/services/database/entity/print_history_entity.g.dart

@@ -13,6 +13,7 @@ PrintHistoryEntity _$PrintHistoryEntityFromJson(Map<String, dynamic> json) =>
       serviceOrderId: json['serviceOrderId'] as String,
       servicePrintId: json['servicePrintId'] as String,
       invoiceUrl: json['invoiceUrl'] as String,
+      printCmd: json['printCmd'] as String?,
       printType: json['printType'] as String? ?? '1',
       printNo: (json['printNo'] as num?)?.toInt() ?? 1,
       retryVersion: (json['retryVersion'] as num?)?.toInt() ?? 0,
@@ -34,6 +35,7 @@ Map<String, dynamic> _$PrintHistoryEntityToJson(PrintHistoryEntity instance) =>
       'serviceOrderId': instance.serviceOrderId,
       'servicePrintId': instance.servicePrintId,
       'invoiceUrl': instance.invoiceUrl,
+      'printCmd': instance.printCmd,
       'printType': instance.printType,
       'printNo': instance.printNo,
       'retryVersion': instance.retryVersion,