feat(finance): 统一内部 SKU 驱动的履约与财务分流

- 新增 internal_sku_mappings / internal_sku_channels，平台字段统一映射到内部中文 SKU
- 下单入口按内部 SKU 渠道决策修正默认人工路由，自动发货补全 dash sku
- 财务 channel_assign 读取统一渠道表；卡券/人工能力兜底，自动发货/接单要求真实载体
- carrier reconciliation 自动补自动发货任务和接单工单
- pending 落明确原因：无内部 SKU / 无渠道能力 / 无履约载体
- 合并、重判、旧 sku_code 规则清理、部署后 preflight 核对脚本
- 待分类队列按内部 SKU 聚合并展示原因

apps/backend/src/services/scheduler/finance-pipeline-jobs.ts

@@ -2,6 +2,7 @@ import type { JsonObject } from '../../types/json.js'
 import { query } from '../../db/client.js'
 import { assignPendingOrderItemChannels } from '../fulfillment/channel-assign-service.js'
 import { runAffiliateFallback } from '../fulfillment/affiliate-fallback-service.js'
+import { reconcilePendingCarriers } from '../fulfillment/carrier-reconciliation-service.js'
 import {
   resolveExceptionsForItemsByReason,
   resolveOrphanCostExceptions,
@@ -84,6 +85,10 @@ export async function runChannelAssignJob(job: JsonObject = {}) {
 export async function runCarrierDispatchJob(job: JsonObject = {}) {
   const config = jobConfig(job)
   const limit = clampInt(config.limit, 200, 1, 2000)
+  const reconciled = await reconcilePendingCarriers({ limit: Math.min(limit, 200) })
+  if (reconciled.affiliateTasksCreated > 0) {
+    await assignPendingOrderItemChannels({ batchSize: 200, maxBatches: 1 }).catch(() => undefined)
+  }
   const cursor =
     config.afterId != null
       ? Math.max(0, Math.trunc(Number(config.afterId)))