feat(theme-purchase): 新增皮肤购买管理模块

新增后台皮肤购买记录（积分支付）完整功能，包括 DO、Mapper、Service、Controller 及对应 VO 与错误码定义

yolo-module-infra/src/main/java/com/yolo/keyboard/module/infra/enums/ErrorCodeConstants.java

@@ -74,4 +74,6 @@ public interface ErrorCodeConstants {
     ErrorCode KEYBOARD_USER_NOT_EXISTS = new ErrorCode(1_001_202_000, "键盘用户不存在");
     ErrorCode THEMES_NOT_EXISTS = new ErrorCode(1_001_202_001, "键盘皮肤不存在");
     ErrorCode KEYBOARD_THEME_STYLES_NOT_EXISTS = new ErrorCode(1_001_202_002, "主题风格不存在");
+    ErrorCode THEME_PURCHASE_NOT_EXISTS = new ErrorCode(1_001_202_003, "皮肤购买记录表（积分支付）不存在");
+
 }