refactor(product-match): 抽离接单模板匹配引擎（来源适配器/引擎/价格收口 + 后台按订单项试匹配）

新增 services/product-match：来源适配器（kuaishou-91 合成 91+快手 / pdd / douyin-mashida）+ 平台无关匹配上下文 + 条件打分引擎（并列最高=ambiguous 不猜、逐维诊断）+ 价格数量拼单唯一实现。

- 商店键命名空间化（kuaishou:/pdd:/douyin:），店铺为可选作用域：留空即可按订单信息匹配
- 抖音匹配文本只取内部 SKU，引流标题只进 promoTitle，itemTitle 恒空（修复 0.85 元误命中碎梦浮光珍宝礼盒、拼单未开）
- work-product-match-mappers 改为门面（签名不变），work-order-pricing 改为转发
- 新增后台「按订单项试匹配」接口与面板：走发单同一套链路，返回模板/数量/单价/总额/拼单
- 生产样本回放：91/PDD 6000 条决策 0 差异；抖音 5 条全为修正

设计见 docs/接单模板匹配引擎重构设计.md

apps/frontend/src/pages/admin/panels/ProductMatchPanel.tsx

@@ -38,11 +38,14 @@ import {
   cleanupAdminWorkProductMatchLogs,
   saveAdminWorkerProductMatchConfig,
   testAdminKuaishouProductMatch,
+  testAdminProductMatchByItem,
+  type AdminProductMatchTestByItemResult,
 } from '@/services/admin'
 import type { KuaishouMatchSource, WorkProductMatchLog } from '@/types/worker-platform'
 import type { AdminKuaishouIndustryShopOption } from '@/types/admin'
 import { formatAdminDateTime } from '@/utils/admin-time'
 import { ADMIN_DEFAULT_PAGE_SIZE, buildAdminTablePagination } from '@/utils/admin-pagination'
+import { formatMoney } from './shared'
 
 export default function ProductMatchPanel() {
   const { message } = App.useApp()
@@ -52,6 +55,11 @@ export default function ProductMatchPanel() {
   const [testResult, setTestResult] = useState<
     Awaited<ReturnType<typeof testAdminKuaishouProductMatch>>['data'] | null
   >(null)
+  const [testItemId, setTestItemId] = useState<number | null>(null)
+  const [itemTestResult, setItemTestResult] = useState<AdminProductMatchTestByItemResult | null>(
+    null,
+  )
+  const [testingByItem, setTestingByItem] = useState(false)
   const [selectedLog, setSelectedLog] = useState<WorkProductMatchLog | null>(null)
   const [activeTab, setActiveTab] = useState('sources')
   const [logStatus, setLogStatus] = useState('')
@@ -180,6 +188,22 @@ export default function ProductMatchPanel() {
     }
   }
 
+  async function runItemMatchTest() {
+    if (!testItemId) {
+      message.warning('请输入订单项 ID')
+      return
+    }
+    setTestingByItem(true)
+    try {
+      const response = await testAdminProductMatchByItem(testItemId)
+      setItemTestResult(response.data)
+    } catch (error) {
+      message.error(error instanceof Error ? error.message : '试匹配失败')
+    } finally {
+      setTestingByItem(false)
+    }
+  }
+
   async function updateLegacyFallback(legacyFallbackEnabled: boolean) {
     try {
       await saveAdminWorkerProductMatchConfig({ legacyFallbackEnabled })
@@ -353,6 +377,94 @@ export default function ProductMatchPanel() {
             label: '匹配测试',
             children: (
               <div className="page-stack">
+                <Card size="small" title="按订单项试匹配（与发单侧同一套链路）">
+                  <Space wrap>
+                    <InputNumber
+                      min={1}
+                      style={{ width: 200 }}
+                      placeholder="订单项 ID，如 334088"
+                      value={testItemId}
+                      onChange={(value) => setTestItemId(typeof value === 'number' ? value : null)}
+                    />
+                    <Button
+                      type="primary"
+                      icon={<PlayCircleOutlined />}
+                      loading={testingByItem}
+                      onClick={() => void runItemMatchTest()}
+                    >
+                      试匹配
+                    </Button>
+                    <Typography.Text type="secondary">
+                      读真实订单项 → 来源适配器 → 匹配引擎 → 数量/单价/拼单；抖音、拼多多、91
+                      都适用。
+                    </Typography.Text>
+                  </Space>
+                  {itemTestResult ? (
+                    <div className="page-stack" style={{ marginTop: 12 }}>
+                      <Descriptions bordered size="small" column={{ xs: 1, md: 3 }}>
+                        <Descriptions.Item label="来源">
+                          {itemTestResult.sourceKey}
+                        </Descriptions.Item>
+                        <Descriptions.Item label="结果">
+                          <MatchStatusTag status={itemTestResult.status} />
+                        </Descriptions.Item>
+                        <Descriptions.Item label="命中模板">
+                          {itemTestResult.rule?.productName || itemTestResult.rule?.ruleKey || '-'}
+                        </Descriptions.Item>
+                        <Descriptions.Item label="匹配文本">
+                          {itemTestResult.orderItem.matchSkuTexts.join(' / ') || '-'}
+                        </Descriptions.Item>
+                        <Descriptions.Item label="店铺键">
+                          {itemTestResult.shopKeys.join(' / ') || '-'}
+                        </Descriptions.Item>
+                        <Descriptions.Item label="文本兜底">
+                          {itemTestResult.allowTextFallback ? '允许' : '不允许'}
+                        </Descriptions.Item>
+                        <Descriptions.Item label="数量">
+                          {itemTestResult.plan ? `${itemTestResult.plan.skuQuantity} 份` : '-'}
+                        </Descriptions.Item>
+                        <Descriptions.Item
+                          label={
+                            itemTestResult.plan?.pricingMode === 'unit' ? '按件单价' : '固定金额'
+                          }
+                        >
+                          {itemTestResult.plan
+                            ? formatMoney(
+                                itemTestResult.plan.pricingMode === 'unit'
+                                  ? itemTestResult.plan.unitPriceFen
+                                  : itemTestResult.plan.rewardAmount,
+                              )
+                            : '-'}
+                        </Descriptions.Item>
+                        <Descriptions.Item label="接单总额">
+                          <Typography.Text strong style={{ color: '#3f8600' }}>
+                            {itemTestResult.plan
+                              ? formatMoney(itemTestResult.plan.rewardAmount)
+                              : '-'}
+                          </Typography.Text>
+                        </Descriptions.Item>
+                        <Descriptions.Item label="拼单">
+                          {itemTestResult.plan?.sharingEnabled
+                            ? `开 · ${itemTestResult.plan.sharingTotalQuantity} 份 × ${formatMoney(itemTestResult.plan.sharingUnitReward)}`
+                            : '关'}
+                        </Descriptions.Item>
+                        <Descriptions.Item label="命中条目">
+                          {itemTestResult.entryKey || '-'}
+                        </Descriptions.Item>
+                        <Descriptions.Item label="店铺">
+                          {itemTestResult.order.shopName || itemTestResult.order.shopId}
+                        </Descriptions.Item>
+                      </Descriptions>
+                      <JsonPreview
+                        value={{
+                          candidates: itemTestResult.candidates,
+                          diagnosis: itemTestResult.diagnosis,
+                          counts: itemTestResult.counts,
+                        }}
+                      />
+                    </div>
+                  ) : null}
+                </Card>
                 <Space wrap>
                   <Select
                     showSearch

apps/frontend/src/services/admin/worker-platform.ts

@@ -385,6 +385,55 @@ export function testAdminKuaishouProductMatch(rawPayload: string) {
   }>('/api/v1/admin/worker-platform/product-match-test', { rawPayload })
 }
 
+export type AdminProductMatchTestByItemResult = {
+  order: {
+    id: number
+    provider: string
+    platform: string
+    shopId: string
+    shopName: string
+    platformOrderId: string
+    totalAmount: number
+  }
+  orderItem: {
+    id: number
+    skuCode: string
+    skuName: string
+    quantity: number
+    matchSkuTexts: string[]
+  }
+  sourceKey: string
+  hasSellerContext: boolean
+  allowTextFallback: boolean
+  shopKeys: string[]
+  status: 'matched' | 'unmatched' | 'ambiguous'
+  rule: WorkProductRule | null
+  mappingId: number | null
+  entryKey: string | null
+  score: number
+  candidates: Array<{ key: string; ruleKey: string; score: number; mappingId: number | null }>
+  diagnosis: Array<{ key: string; ruleKey: string; blockedBy: string[] }>
+  plan: {
+    skuQuantity: number
+    unitPriceFen: number
+    pricingMode: 'unit' | 'fixed'
+    rewardAmount: number
+    sharingEnabled: boolean
+    sharingTotalQuantity: number
+    sharingUnitReward: number
+    acceptanceMode: string
+  } | null
+  counts: { enabledRules: number; enabledMappings: number }
+}
+
+/** 按订单项 ID 试匹配：与发单侧完全一致的来源适配器 + 引擎 + 价格（任何来源都适用）。 */
+export function testAdminProductMatchByItem(orderItemId: number) {
+  return apiPost<AdminProductMatchTestByItemResult>(
+    '/api/v1/admin/worker-platform/product-match-test-item',
+    { orderItemId },
+  )
+}
+
 export function fetchAdminWorkProductMatchLogs(params?: Record<string, unknown>) {
   return apiGet<WorkerListResponse<WorkProductMatchLog>>(
     '/api/v1/admin/worker-platform/product-match-logs',