bugfix:account mapper count 去重问题

src/main/resources/mapper/primary/AccountMapper.xml

@@ -99,7 +99,7 @@
 
     <!-- 查询总记录数 (优化版) -->
     <select id="countCreditUsage" resultType="int">
-        SELECT COUNT(1)
+        SELECT COUNT(DISTINCT a.id)
         FROM t_account a
         <if test="changeEvent != null or startTime != null or endTime != null">
             LEFT JOIN t_credits_detail cd ON a.id = cd.account_id