fix: complete admin input hints

src/modules/finance/pages/FinanceCustomerArapView.vue

@@ -394,7 +394,7 @@ watch(() => [route.name, String(route.params.feeSourceId || '')], ([name, feeSou
       <el-form label-position="top"><el-form-item label="审核结论"><el-segmented v-model="reviewForm.action" :options="[{ label: '通过', value: 'APPROVE' }, { label: '驳回', value: 'REJECT' }]" /></el-form-item><el-form-item :label="reviewForm.action === 'REJECT' ? '驳回原因' : '审核说明（可选）'"><el-input v-model="reviewForm.reason" type="textarea" :rows="3" maxlength="500" :placeholder="reviewForm.action === 'REJECT' ? '请填写驳回原因' : '请输入审核说明（可选）'" show-word-limit /></el-form-item></el-form>
     </AppDialog>
     <AppDialog v-model="mutationOpen" :title="mutationTitle" :confirm-text="mutationMode === 'VOID' ? '确认作废' : '确认'" :confirm-loading="mutationSaving" @confirm="submitMutation">
-      <el-form label-position="top"><el-form-item v-if="mutationMode === 'EDIT' || mutationMode === 'ADJUST'" label="金额(CNY)"><el-input-number v-model="mutationForm.amount" :min="0.01" :precision="2" :controls="false" style="width:100%" /></el-form-item><el-form-item label="操作原因"><el-input v-model="mutationForm.reason" type="textarea" :rows="3" maxlength="500" placeholder="请填写操作原因" show-word-limit /></el-form-item></el-form>
+      <el-form label-position="top"><el-form-item v-if="mutationMode === 'EDIT' || mutationMode === 'ADJUST'" label="金额(CNY)"><el-input-number v-model="mutationForm.amount" :min="0.01" :precision="2" :controls="false" style="width:100%" placeholder="请输入调整金额" /></el-form-item><el-form-item label="操作原因"><el-input v-model="mutationForm.reason" type="textarea" :rows="3" maxlength="500" placeholder="请填写操作原因" show-word-limit /></el-form-item></el-form>
     </AppDialog>
   </AdminPage>
 </template>