chore: release client-v1.1.12

价签标签两栏布局改版 + 生产日期修复 + 模板预览接真实渲染 +
Windows/macOS 应用内更新进度条修复。

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Bupi8Kdqkfx2N5acFsHTx5

client/lib/screens/devices/device_management_screen.dart

@@ -9,8 +9,11 @@ import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:intl/intl.dart';
 import 'package:lucide_icons_flutter/lucide_icons.dart';
+import 'package:qr_flutter/qr_flutter.dart';
 
 import '../../core/auth/auth_state.dart';
+import '../../core/utils/print_util.dart' show LabelData;
+import '../../widgets/label_preview_dialog.dart';
 import '../../core/responsive/responsive.dart';
 import '../../core/theme/app_dims.g.dart';
 import '../../core/theme/context_tokens.dart';
@@ -932,8 +935,9 @@ class _DeviceManagementScreenState
   // ── 区块 C：打印模板（静态两卡，仅桌面；拍板移动端无打印）────
   Widget _tplGrid(dynamic t) {
     final cards = [
-      _tplCard(
-          t, LucideIcons.tag, '标签模板 · 商品价签', '40×30mm · 品名 / 规格 / 条码 / 零售价'),
+      _tplCard(t, LucideIcons.tag, '标签模板 · 商品价签',
+          '40×20mm · 店名 / 品名 / 编号 / 度数规格 / 生产日期 / 二维码 + 底部整幅一维条码',
+          onPreview: _previewLabelTemplate),
       _tplCard(t, LucideIcons.receiptText, '小票模板 · 出库单据',
           '58mm 热敏 · 抬头 / 明细 / 合计 / 经手人'),
     ];
@@ -944,7 +948,8 @@ class _DeviceManagementScreenState
     ]);
   }
 
-  Widget _tplCard(dynamic t, IconData icon, String name, String desc) {
+  Widget _tplCard(dynamic t, IconData icon, String name, String desc,
+      {VoidCallback? onPreview}) {
     return Container(
       padding: const EdgeInsets.all(16),
       decoration: BoxDecoration(
@@ -980,7 +985,8 @@ class _DeviceManagementScreenState
               const SizedBox(height: 8),
               Row(children: [
                 DsButton('预览',
-                    small: true, onPressed: () => _snack('模板预览即将上线')),
+                    small: true,
+                    onPressed: onPreview ?? () => _snack('模板预览即将上线')),
                 const SizedBox(width: 8),
                 DsButton('编辑',
                     small: true, onPressed: () => _snack('模板编辑即将上线')),
@@ -992,6 +998,35 @@ class _DeviceManagementScreenState
     );
   }
 
+  // ── 标签模板预览：用示例数据 + 本地二维码，走真实标签渲染 ────
+  Future<void> _previewLabelTemplate() async {
+    final shop = ref.read(shopInfoProvider).valueOrNull;
+    // 本地生成一张示例二维码（与真实标签同一渲染路径，仅数据是示例）。
+    final painter = QrPainter(
+      data: 'https://jiu.51yanmei.com/p/sample',
+      version: QrVersions.auto,
+      gapless: true,
+    );
+    final img = await painter.toImageData(240);
+    if (!mounted || img == null) return;
+    final label = LabelData(
+      qrBytes: img.buffer.asUint8List(),
+      name: '示例·贵州茅台',
+      code: 'P0001',
+      series: '飞天',
+      spec: '500ml',
+      productionDate: '2024-05-18',
+      shopName: shop?.name ?? '示例酒行',
+      shopAddress: shop?.address ?? '',
+      shopPhone: shop?.phone ?? '',
+    );
+    if (!mounted) return;
+    showAppDialog(
+      context: context,
+      builder: (_) => LabelPreviewDialog(labels: [label]),
+    );
+  }
+
   // ── 外设增删（店级 custom_fields.peripherals）───────────────
   Future<void> _savePeripherals(List<Peripheral> items) async {
     final shop = await ref.read(shopInfoProvider.future);

client/lib/screens/products/product_detail_screen.dart

@@ -987,6 +987,7 @@ class _QRCodeDialogState extends ConsumerState<_QRCodeDialog> {
       code: p.code,
       spec: p.spec,
       series: p.series,
+      productionDate: p.productionDate,
       shopName: shopInfo?.name ?? '',
       shopAddress: shopInfo?.address ?? '',
       shopPhone: shopInfo?.phone ?? '',