fix(outbound): fix row-key collision causing UI select-all bug and false duplicate warnings in stock selection

inventory-web/src/views/outbound/Selection.vue

@@ -452,7 +452,11 @@ const loadStockList = async () => {
       pageSize: stockPageSize.value,
       keyword: searchKeyword.value.trim()
     })
-    stockList.value = res.data?.list || []
+    // 为每个item添加uniqueKey，确保row-key唯一
+    stockList.value = (res.data?.list || []).map((item: any) => ({
+      ...item,
+      uniqueKey: `${item.type}_${item.id}`
+    }))
     stockTotal.value = res.data?.total || 0
   } catch (e) {
     ElMessage.error('加载库存列表失败')