fix(pdd): 停止旧单刷匹配日志，并修复订单列表商品显示为 0

同步时已有工单/匹配结果未变不再写日志；列表按 Number(order_id) 挂 items，并补齐 PDD goods_name 回退与嵌套商品解析。

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

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

@@ -9,6 +9,7 @@ import {
   createWorkProductMatchLog,
   createWorkOrder,
   createWorkOrderEvent,
+  getLatestWorkProductMatchLogByOrderItemId,
   getWorkOrderByOrderItemId,
   listWorkOrdersByPlatformOrderId,
   listWorkProductRuleMappings,
@@ -68,8 +69,30 @@ export async function syncWorkerOrdersForSourceOrder(
     const skuNick =
       matchContext.skuNick || String(outSkuSn || snapshot.spec || item.sku_name || '').trim()
 
-    // Record product match diagnostics for all platform orders (including PDD)
-    if (sellerId || relItemId || itemTitle) {
+    // 已有工单：跳过匹配日志，避免 PDD 定时同步对旧单反复刷「命中」日志。
+    const existingWorkOrder = await getWorkOrderByOrderItemId(item.id)
+    if (existingWorkOrder) {
+      skipped.push({ orderItemId: Number(item.id), reason: 'already_exists' })
+      decisions.push(
+        buildWorkerConsumerDecision(item, {
+          result: 'existing',
+          reason: 'already_exists',
+          ruleId: match.rule?.id,
+          ruleKey: match.rule?.rule_key,
+        }),
+      )
+      continue
+    }
+
+    const latestLog = await getLatestWorkProductMatchLogByOrderItemId(item.id)
+    const sameMatchOutcome =
+      latestLog &&
+      String(latestLog.match_status || '') === match.reason &&
+      Number(latestLog.rule_id || 0) === Number(match.rule?.id || 0) &&
+      Number(latestLog.mapping_id || 0) === Number(match.mappingId || 0)
+
+    // 匹配结果未变时不重复写诊断日志（旧单未建工单也会被定时同步反复扫到）。
+    if (!sameMatchOutcome && (sellerId || relItemId || itemTitle)) {
       await createWorkProductMatchLog({
         orderId: Number(order.id),
         orderItemId: Number(item.id),
@@ -122,18 +145,6 @@ export async function syncWorkerOrdersForSourceOrder(
       )
       continue
     }
-    if (await getWorkOrderByOrderItemId(item.id)) {
-      skipped.push({ orderItemId: Number(item.id), reason: 'already_exists' })
-      decisions.push(
-        buildWorkerConsumerDecision(item, {
-          result: 'existing',
-          reason: 'already_exists',
-          ruleId: rule.id,
-          ruleKey: rule.rule_key,
-        }),
-      )
-      continue
-    }
     // 订单号跨订单唯一：同一订单的多个 SKU 件允许共享订单号（按件建单是既有设计），
     // 但订单号已挂在其他订单下时跳过，避免自动同步产生撞号工单。
     const samePlatformOrders = await listWorkOrdersByPlatformOrderId(order.platform_order_id)