feat(payment): 集成 FIUU 支付方式并优化退款流程

KKSU

2025-02-06 bf783845bb71eadbd85ddef9a7c1ae14d5aebc4b

 src/main/java/cc/mrbird/febs/common/properties/XcxProperties.java

@@ -26,5 +26,11 @@
    private String wecharpayMchid;
    //支付秘钥
    private String wecharpaySecret;
    //支付秘钥V3
    private String wecharpaySecretV3;
    //高德KEY
    private String gaodeKey;
    //高德serviceName
    private String serviceName;

}