add redenvelope api

@@ -204,9 +204,9 @@ class featureModel extends global.yoho.BaseModel {
     */
     getRedEnvelope(uid, token) {
         let data = {
-            method: 'app.coupons.couponsSend',
+            method: 'app.redpac.addRedpac',
             uid: uid,
-            coupon_send_token: token
+            redpacToken: token
         };
 
         return this.get({data}).then(result => {