fix(finance): 收敛内部 SKU 履约路由与载体状态

统一内部 SKU 与渠道主/兜底解析，禁止并列主渠道。

运营指定渠道改为先创建真实载体，失败保持明确 pending。

历史缺载体、多载体冲突和自动发货兜底统一由管道修复。

迁移人工配置与旧 sku_code 规则，补充严格预检和集成测试。

apps/backend/src/services/worker-platform/sync-worker-orders-service.ts

@@ -50,7 +50,12 @@ import { assignPendingOrderItemChannels } from '../fulfillment/channel-assign-se
 export async function syncWorkerOrdersForSourceOrder(
   order: OrderRow,
   orderItems: OrderItemRow[],
-  options: { source?: string; autoOnly?: boolean; sourceMetadata?: JsonObject } = {},
+  options: {
+    source?: string
+    autoOnly?: boolean
+    sourceMetadata?: JsonObject
+    skipChannelAssign?: boolean
+  } = {},
 ) {
   const [rules, mappings] = await Promise.all([
     listWorkProductRules({ enabled: true }),
@@ -309,15 +314,17 @@ export async function syncWorkerOrdersForSourceOrder(
   }
 
   // 订单处理完成后立即跑一次渠道判定；失败不阻断下单，由定时任务兜底。
-  try {
-    await assignPendingOrderItemChannels({ batchSize: 200, maxBatches: 1 })
-  } catch (error) {
-    logWarn('[worker-order-consumer]', '履约方式归集失败，等待定时任务兜底', {
-      orderId: order.id,
-      platformOrderId: order.platform_order_id,
-      orderItemCount: orderItems.length,
-      error: error instanceof Error ? error.message : String(error),
-    })
+  if (!options.skipChannelAssign) {
+    try {
+      await assignPendingOrderItemChannels({ batchSize: 200, maxBatches: 1 })
+    } catch (error) {
+      logWarn('[worker-order-consumer]', '履约方式归集失败，等待定时任务兜底', {
+        orderId: order.id,
+        platformOrderId: order.platform_order_id,
+        orderItemCount: orderItems.length,
+        error: error instanceof Error ? error.message : String(error),
+      })
+    }
   }
 
   const summary = {