feat(client): 出入库单打印按新版式重做 + 单价口径修正

- 版式参照单据样板：公司抬头 + 两行三列表头 + 统一明细列
  （商品编号/名称/系列/规格/批次号/生产日期/数量/单价/金额/备注）
- 单据总计独立成行（仅数量+金额，右对齐高亮）
- 出库单保留温馨提示，入库单去掉
- 签字行：制单人=当前登录用户(OrderPrintMeta)，采购员/销售员=经办人；
  公司名取门店(shopInfoProvider)
- 出库单单价=售价(sale_price)，金额=售价×数量；历史单 sale_price=0
  时回退 unit_price/total_price。入库单单价=进价(unit_price)
- 桌面 PDF 与 Web HTML 两端同构

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

client/lib/screens/stock_in/stock_in_form_screen.dart

@@ -227,7 +227,7 @@ class _StockInFormScreenState extends ConsumerState<StockInFormScreen> {
 
   Future<void> _printOrder() async {
     if (_loadedOrder == null) return;
-    await showStockInOrderPrint(context, _loadedOrder!);
+    await showStockInOrderPrint(context, ref, _loadedOrder!);
   }
 
   Future<void> _submit(bool asDraft) async {

client/lib/screens/stock_in/stock_in_list_screen.dart

@@ -530,7 +530,7 @@ class _StockInListScreenState extends ConsumerState<StockInListScreen> {
       onPrint: () async {
         final order = await ref.read(stockInRepositoryProvider).get(o.id);
         if (context.mounted) {
-          await showStockInOrderPrint(context, order);
+          await showStockInOrderPrint(context, ref, order);
         }
       },
       afterPrint: [
@@ -1075,7 +1075,7 @@ class _StockInDetailDialogState extends ConsumerState<_StockInDetailDialog> {
                     IconButton(
                       icon: const Icon(Icons.print_outlined, color: AppTheme.primaryDark),
                       tooltip: '打印',
-                      onPressed: () => showStockInOrderPrint(context, _loadedOrder!),
+                      onPressed: () => showStockInOrderPrint(context, ref, _loadedOrder!),
                     ),
                 ],
               ),

client/lib/screens/stock_out/stock_out_form_screen.dart

@@ -258,7 +258,7 @@ class _StockOutFormScreenState extends ConsumerState<StockOutFormScreen> {
 
   Future<void> _printOrder() async {
     if (_loadedOrder == null) return;
-    await showStockOutOrderPrint(context, _loadedOrder!);
+    await showStockOutOrderPrint(context, ref, _loadedOrder!);
   }
 
   Future<void> _submit(bool asDraft) async {

client/lib/screens/stock_out/stock_out_list_screen.dart

@@ -558,7 +558,7 @@ class _StockOutListScreenState extends ConsumerState<StockOutListScreen> {
       onPrint: () async {
         final order = await ref.read(stockOutRepositoryProvider).get(o.id);
         if (context.mounted) {
-          await showStockOutOrderPrint(context, order);
+          await showStockOutOrderPrint(context, ref, order);
         }
       },
       onSettle: () => _confirmSettle(context, o.id, 'stock_out'),
@@ -986,7 +986,7 @@ class _StockOutDetailDialogState extends ConsumerState<_StockOutDetailDialog> {
                     IconButton(
                       icon: const Icon(Icons.print_outlined, color: AppTheme.primaryDark),
                       tooltip: '打印',
-                      onPressed: () => showStockOutOrderPrint(context, _loadedOrder!),
+                      onPressed: () => showStockOutOrderPrint(context, ref, _loadedOrder!),
                     ),
                 ],
               ),