fix: Rename limit to cost and allow for 0 limit

- Rename `额度` column to `费用`
- Allow for a quota to be 0.
- If the quota is 0, return 'free'

web/berry/src/utils/common.js

@@ -124,7 +124,11 @@ export function timestamp2string(timestamp) {
   return year + '-' + month + '-' + day + ' ' + hour + ':' + minute + ':' + second;
 }
 
-export function calculateQuota(quota, digits = 2) {
+export function calculateQuota(quota = 0, digits = 2) {
+  if (!quota || quota === 0) {
+    return 'free';
+  }
+
   let quotaPerUnit = localStorage.getItem('quota_per_unit');
   quotaPerUnit = parseFloat(quotaPerUnit);
 

web/berry/src/views/Log/component/TableHead.js

@@ -13,7 +13,7 @@ const LogTableHead = ({ userIsAdmin }) => {
         <TableCell>模型</TableCell>
         <TableCell>提示</TableCell>
         <TableCell>补全</TableCell>
-        <TableCell>额度</TableCell>
+        <TableCell>费用</TableCell>
         <TableCell>详情</TableCell>
       </TableRow>
     </TableHead>