feat(distribution): 通道费改主站承担，并按冷却期自动释放结算

利润不再扣支付通道费；站点可配置结算冷却期，到期自动入账，已释放后退款从收款站钱包回冲。同时修复当日自动批次无法追加、三方回冲打错钱包，以及测试库自增重置被 MySQL 统计缓存跳过的问题。

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/features/admin/api/adminDistribution.ts

@@ -10,6 +10,7 @@ export interface DistributionSite {
   display_account_enabled: boolean
   tax_enabled: boolean
   tax_rate_bps: number
+  settlement_hold_days: number
   created_at: string
 }
 
@@ -88,6 +89,7 @@ export interface OnboardDistributionSitePayload {
   display_account_enabled?: boolean
   tax_enabled?: boolean
   tax_rate_bps?: number
+  settlement_hold_days?: number
   distributor_receive_ratio?: number
   platform_sell_ratio?: number
   service_fee_value?: number
@@ -129,7 +131,13 @@ export async function updateDistributionSite(
   payload: Partial<
     Pick<
       DistributionSite,
-      'site_name' | 'domain' | 'status' | 'display_account_enabled' | 'tax_enabled' | 'tax_rate_bps'
+      | 'site_name'
+      | 'domain'
+      | 'status'
+      | 'display_account_enabled'
+      | 'tax_enabled'
+      | 'tax_rate_bps'
+      | 'settlement_hold_days'
     >
   >
 ) {

frontend/src/features/admin/views/AdminDistributionSitesView.vue

@@ -1,11 +1,12 @@
 <script setup lang="ts">
 import { ref, reactive, onMounted } from 'vue'
 import { ElMessage, type FormInstance, type FormRules } from 'element-plus'
-import { Plus, Shop, Link, DocumentCopy, Refresh } from '@element-plus/icons-vue'
+import { Plus, Shop, Link, DocumentCopy, Refresh, Clock } from '@element-plus/icons-vue'
 import {
   fetchDistributionSites,
   onboardDistributionSite,
   syncDistributionSiteAccounts,
+  updateDistributionSite,
   type DistributionSite,
   type OnboardDistributionSitePayload,
   type OnboardDistributionSiteResult,
@@ -23,6 +24,37 @@ const onboardFormRef = ref<FormInstance>()
 const successDialogVisible = ref(false)
 const onboardResult = ref<OnboardDistributionSiteResult | null>(null)
 
+const settlementDialogVisible = ref(false)
+const settlementSubmitting = ref(false)
+const settlementForm = reactive({
+  site_id: 0,
+  site_name: '',
+  settlement_hold_days: 7,
+})
+
+function handleOpenSettlement(row: DistributionSite) {
+  settlementForm.site_id = row.id
+  settlementForm.site_name = row.site_name
+  settlementForm.settlement_hold_days = row.settlement_hold_days ?? 7
+  settlementDialogVisible.value = true
+}
+
+async function handleSettlementSubmit() {
+  settlementSubmitting.value = true
+  try {
+    await updateDistributionSite(settlementForm.site_id, {
+      settlement_hold_days: Number(settlementForm.settlement_hold_days),
+    })
+    ElMessage.success(`【${settlementForm.site_name}】结算冷却期已更新`)
+    settlementDialogVisible.value = false
+    await loadSites()
+  } catch (err) {
+    ElMessage.error(readError(err, '更新结算冷却期失败'))
+  } finally {
+    settlementSubmitting.value = false
+  }
+}
+
 const onboardForm = reactive({
   site_name: '',
   site_code: '',
@@ -203,12 +235,19 @@ onMounted(() => {
             <el-tag v-else type="info" size="small">免税</el-tag>
           </template>
         </el-table-column>
+        <el-table-column label="结算冷却期" width="110">
+          <template #default="{ row }">
+            <el-tag :type="row.settlement_hold_days > 0 ? 'primary' : 'success'" size="small">
+              {{ row.settlement_hold_days > 0 ? `${row.settlement_hold_days} 天` : '立即释放' }}
+            </el-tag>
+          </template>
+        </el-table-column>
         <el-table-column label="创建时间" prop="created_at" min-width="160">
           <template #default="{ row }">
             {{ formatDateTime(row.created_at) }}
           </template>
         </el-table-column>
-        <el-table-column label="操作" width="140" fixed="right">
+        <el-table-column label="操作" width="220" fixed="right">
           <template #default="{ row }">
             <el-button
               type="primary"
@@ -219,6 +258,9 @@ onMounted(() => {
             >
               同步商品
             </el-button>
+            <el-button type="primary" link :icon="Clock" @click="handleOpenSettlement(row)">
+              结算设置
+            </el-button>
           </template>
         </el-table-column>
       </el-table>
@@ -371,6 +413,42 @@ onMounted(() => {
         <el-button @click="successDialogVisible = false">关闭</el-button>
       </template>
     </el-dialog>
+
+    <!-- 结算冷却期设置对话框 -->
+    <el-dialog
+      v-model="settlementDialogVisible"
+      title="结算冷却期设置"
+      width="480px"
+      destroy-on-close
+    >
+      <el-alert
+        type="info"
+        :closable="false"
+        show-icon
+        title="订单完成后进入冷却期，期满自动释放到商户可提现余额；0 天表示完成即释放。修改后对尚未释放的已完成订单立即生效。"
+        style="margin-bottom: 16px"
+      />
+      <el-form label-width="110px">
+        <el-form-item label="分销站点">
+          <el-input :model-value="settlementForm.site_name" disabled />
+        </el-form-item>
+        <el-form-item label="冷却天数">
+          <el-input-number
+            v-model="settlementForm.settlement_hold_days"
+            :min="0"
+            :max="365"
+            :step="1"
+          />
+          <span class="settlement-hint">天（0-365）</span>
+        </el-form-item>
+      </el-form>
+      <template #footer>
+        <el-button @click="settlementDialogVisible = false">取消</el-button>
+        <el-button type="primary" :loading="settlementSubmitting" @click="handleSettlementSubmit">
+          保存设置
+        </el-button>
+      </template>
+    </el-dialog>
   </div>
 </template>
 
@@ -433,4 +511,10 @@ export default {
   padding-bottom: 6px;
   border-bottom: 1px dashed #e5e7eb;
 }
+
+.settlement-hint {
+  margin-left: 8px;
+  color: #6b7280;
+  font-size: 13px;
+}
 </style>