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/cost-center/manual-fulfillment-config-service.ts

@@ -4,6 +4,7 @@ import type { JsonObject } from '../../types/json.js'
 import { createHttpError } from '../../utils/http.js'
 import { formatShanghaiDate, shiftDate } from '../../utils/finance-date-range.js'
 import { nowIso } from '../../utils/time.js'
+import { upsertInternalSkuChannel } from '../fulfillment/internal-sku-channel-service.js'
 
 /**
  * 人工履约 SKU 配置服务。
@@ -125,7 +126,7 @@ export async function scanManualSkus(options: ScanOptions) {
           oi.sku_name,
           COALESCE(oi.revenue_amount_fen, 0)::bigint AS revenue_fen,
           (COALESCE(o.paid_at, o.created_at) AT TIME ZONE 'Asia/Shanghai')::date AS stat_date,
-          oi.manual_sku_key AS sku_key
+          resolve_internal_sku(oi.manual_sku_key, oi.sku_name, oi.sku_code) AS sku_key
         FROM order_items oi
         JOIN orders o ON o.id = oi.order_id
         WHERE oi.fulfillment_status = 'assigned' AND oi.fulfillment_channel = 'manual'
@@ -243,7 +244,7 @@ export async function listManualSkus(input: Record<string, unknown> = {}) {
       JOIN orders o ON o.id = oi.order_id
       WHERE oi.fulfillment_status = 'assigned' AND oi.fulfillment_channel = 'manual'
         AND o.provider = $${params.length}
-        AND oi.manual_sku_key = r.sku_key
+        AND resolve_internal_sku(oi.manual_sku_key, oi.sku_name, oi.sku_code) = r.sku_key
     )`)
   }
 
@@ -408,6 +409,15 @@ export async function deleteManualFulfillmentConfig(skuKey: string) {
     [key],
   )
   await query(`DELETE FROM sku_channel_rules WHERE source = 'manual' AND match_key = $1`, [key])
+  await upsertInternalSkuChannel({
+    internalSku: key,
+    channel: 'manual',
+    priority: 90,
+    isFallback: true,
+    enabled: false,
+    source: 'manual_config',
+    configJson: { manualConfigId: null },
+  })
   await syncRegistryConfigId(key, null)
   return { skuKey: key, deleted: deleted.rowCount || 0 }
 }
@@ -435,7 +445,7 @@ export async function rematchManualFulfillments(input: Record<string, unknown> =
         FROM order_items oi
         JOIN orders o ON o.id = oi.order_id
         JOIN manual_fulfillment_configs cfg
-          ON cfg.sku_key = oi.manual_sku_key
+          ON cfg.sku_key = resolve_internal_sku(oi.manual_sku_key, oi.sku_name, oi.sku_code)
         WHERE oi.fulfillment_status = 'assigned' AND oi.fulfillment_channel = 'manual'
           AND cfg.enabled = TRUE
           AND ($1 = '' OR cfg.sku_key = $1)
@@ -719,27 +729,57 @@ function requiredRow<T>(row: T | undefined, message: string): T {
 async function syncManualChannelRule(config: {
   id: number
   sku_key: string
+  canonical_product_id: number | null
   enabled: boolean
   note: string
 }): Promise<void> {
   const skuKey = String(config.sku_key || '').trim()
   if (!skuKey) return
 
+  const otherChannel = await query<{ exists: boolean }>(
+    `
+      SELECT EXISTS (
+        SELECT 1 FROM internal_sku_channels
+        WHERE btrim(internal_sku) = $1 AND enabled = TRUE AND channel <> 'manual'
+      ) AS exists
+    `,
+    [skuKey],
+  )
+  const hasOtherChannel = otherChannel.rows[0]?.exists === true
+  await upsertInternalSkuChannel({
+    internalSku: skuKey,
+    channel: 'manual',
+    priority: hasOtherChannel ? 90 : 10,
+    isFallback: hasOtherChannel,
+    enabled: config.enabled !== false,
+    canonicalProductId: config.canonical_product_id,
+    source: 'manual_config',
+    configJson: { manualConfigId: config.id, note: String(config.note || '').slice(0, 200) },
+    replacePriority: true,
+  })
+
   await query(
     `
       INSERT INTO sku_channel_rules (
         provider, shop_id, match_key_type, match_key, channel, priority,
         source, source_ref_id, enabled, note, created_at, updated_at
       )
-      VALUES ('', '', 'internal_sku', $1, 'manual', 70, 'manual', $2, $3, $4, NOW(), NOW())
+      VALUES ('', '', 'internal_sku', $1, 'manual', $5, 'manual', $2, $3, $4, NOW(), NOW())
       ON CONFLICT (provider, shop_id, match_key_type, match_key, channel)
       DO UPDATE SET
         enabled = EXCLUDED.enabled,
+        priority = EXCLUDED.priority,
         source = 'manual',
         source_ref_id = EXCLUDED.source_ref_id,
         note = EXCLUDED.note,
         updated_at = NOW()
     `,
-    [skuKey, config.id, config.enabled !== false, String(config.note || '').slice(0, 200)],
+    [
+      skuKey,
+      config.id,
+      config.enabled !== false,
+      String(config.note || '').slice(0, 200),
+      hasOtherChannel ? 90 : 10,
+    ],
   )
 }

apps/backend/src/services/cost-center/product-normalize-service.ts

@@ -215,21 +215,6 @@ async function ensureVoucherProductForItem(item: ItemRow): Promise<number | null
     [internalSku],
   )
 
-  const skuCode = String(item.sku_code || '').trim()
-  if (skuCode) {
-    await query(
-      `
-        INSERT INTO sku_channel_rules (
-          provider, shop_id, match_key_type, match_key, channel, priority,
-          source, enabled, note, created_at, updated_at
-        )
-        VALUES ($1, $2, 'sku_code', $3, 'third_party_voucher', 10, 'voucher', TRUE,
-                '卡券订单自动建商品后生成', NOW(), NOW())
-        ON CONFLICT (provider, shop_id, match_key_type, match_key, channel) DO NOTHING
-      `,
-      [item.provider, item.shop_id, skuCode],
-    )
-  }
   return productId
 }