refactor(audit): 在充值和退款审核中添加驳回理由必填项 符合需求文档

src/views/audit/rechargeAudit.vue

@@ -153,7 +153,7 @@
 
   <el-dialog v-model="rejectDialogVisible" title="驳回理由" width="500px">
     <el-form>
-      <el-form-item label="驳回理由">
+      <el-form-item label="驳回理由" required>
         <el-input v-model="rejectReason" type="textarea" :rows="4" placeholder="请输入驳回理由" maxlength="200"
                   show-word-limit/>
       </el-form-item>

src/views/audit/refundAudit.vue

@@ -136,7 +136,7 @@
 
   <el-dialog v-model="rejectDialogVisible" title="驳回理由" width="500px">
     <el-form>
-      <el-form-item label="驳回理由">
+      <el-form-item label="驳回理由" required>
         <el-input v-model="rejectReason" type="textarea" :rows="4" placeholder="请输入驳回理由" maxlength="200"
           show-word-limit />
       </el-form-item>