返利：达到等级发返利邮件

shared/consts/constModules/mailConst.ts

@@ -59,6 +59,7 @@ export enum MAIL_TYPE {
     GUILD_DISSMISS = 29,  // 军团解散
     LADDER = 30,     // 名将擂台
     GUILD_MAIL = 31, // 军团邮件
+    REBATE = 32,    // 返利邮件
 };
 
 export const SEND_NAME = '系统';

shared/consts/constModules/sysConst.ts

@@ -1145,4 +1145,8 @@ export enum SYSTEM_OPEN_ID {
     EXPEDITION = 36,   // 远征
 }
 
-export const DEBUG_PRICE = 0.01;
+export const DEBUG_PRICE = 0.01;
+
+// 返利等级
+export const REBATE_LV = 10;
+export const REBATE_RATIO = 10;