mall + pay：

1、调整微信支付，修复 v2 传递的时间不正确
2、调整 mp js ticket 接口到 system 模块

yudao-module-system/yudao-module-system-biz/src/main/java/cn/iocoder/yudao/module/system/controller/app/weixin/AppWxMpController.http

@@ -0,0 +1,4 @@
+### 请求 /login 接口 => 成功
+POST {{appApi}}/system/wx-mp/create-jsapi-signature?url=http://www.iocoder.cn
+Authorization: Bearer {{appToken}}
+tenant-id: {{appTenentId}}

yudao-module-system/yudao-module-system-biz/src/main/java/cn/iocoder/yudao/module/system/controller/app/weixin/AppWxMpController.java

@@ -0,0 +1,38 @@
+package cn.iocoder.yudao.module.system.controller.app.weixin;
+
+import cn.iocoder.yudao.framework.common.pojo.CommonResult;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import io.swagger.v3.oas.annotations.Operation;
+import lombok.extern.slf4j.Slf4j;
+import me.chanjar.weixin.common.bean.WxJsapiSignature;
+import me.chanjar.weixin.common.error.WxErrorException;
+import me.chanjar.weixin.mp.api.WxMpService;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.annotation.Resource;
+
+import static cn.iocoder.yudao.framework.common.pojo.CommonResult.success;
+
+@Tag(name = "微信公众号")
+@RestController
+@RequestMapping("/system/wx-mp")
+@Validated
+@Slf4j
+public class AppWxMpController {
+
+    @Resource
+    private WxMpService mpService;
+
+    // TODO @芋艿：需要额外考虑个问题；多租户下，如果每个小程序一个微信公众号，则会存在多个 appid；
+    @PostMapping("/create-jsapi-signature")
+    @Operation(summary = "创建微信 JS SDK 初始化所需的签名",
+        description = "参考 https://developers.weixin.qq.com/doc/offiaccount/OA_Web_Apps/JS-SDK.html 文档")
+    public CommonResult<WxJsapiSignature> createJsapiSignature(@RequestParam("url") String url) throws WxErrorException {
+        return success(mpService.createJsapiSignature(url));
+    }
+
+}