feat: init project with miniprogram, cloud functions and admin console

miniprogram/pages/subscribe-success/subscribe-success.wxss

@@ -0,0 +1,11 @@
+.success-icon {
+  width: 120rpx;
+  height: 120rpx;
+  border-radius: 50%;
+  background-color: #52c41a;
+  color: #ffffff;
+  font-size: 72rpx;
+  line-height: 120rpx;
+  text-align: center;
+  margin: 40rpx auto;
+}