fix: 修复多处表单验证与数据流转的缺陷，优化系统消息推送逻辑

hsy

2026-08-31 1704e30de33833817a5fce4c4ab0b94ac8ce1cc6

 src/main/java/com/ruoyi/framework/web/domain/R.java

@@ -103,13 +103,13 @@
        this.data = data;
    }

    public Boolean isError()
    public static <T> Boolean isError(R<T> ret)
    {
        return !isSuccess();
        return !isSuccess(ret);
    }

    public Boolean isSuccess()
    public static <T> Boolean isSuccess(R<T> ret)
    {
        return R.SUCCESS == getCode();
        return R.SUCCESS == ret.getCode();
    }
}