BUGFIX:同一浏览器切换版本登录时，密码被置空

src/main/java/com/ai/da/mapper/primary/entity/Account.java

@@ -125,6 +125,9 @@ public class Account implements Serializable {
 
     private BigDecimal creditsUsageLimit;
 
+    // 学校分配的积分使用情况
+    private BigDecimal creditsUsage = BigDecimal.ZERO;
+
     private Integer subAccountNum;
 
     private String invitationCode;