feat(shop): 门店 logo 上传 + 侧边栏品牌替换

- shops 表新增 logo_url 字段，AutoMigrate 自动建列
- 后端新增 POST /api/v1/shop/logo 接口（管理员），图片裁剪为 256×256 JPEG 存储
- UpdateInfo 支持传入 logo_url
- 侧边栏「岩美」替换为门店真实名称 + 自定义 logo
- 无 logo 时显示店名首字文字头像（深蓝底白字）
- 设置页「酒行信息」展示 logo 预览，编辑弹窗新增「更换 Logo」上传按钮
- 修复库存导入计数逻辑：total/imported/updated/errors 四项分别统计
- 库存导入去重改为双路索引（编号 + 名称|系列|规格），避免 key 不一致误判新增
- settings 页导入结果统一显示「重复 X 条」，兼容 skipped 和 updated 两个字段

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

client/lib/screens/inventory/inventory_list_screen.dart

@@ -171,14 +171,17 @@ class _InventoryListScreenState extends ConsumerState<InventoryListScreen> {
       stateNotifier.value = _ImportState(
         stage: _ImportStage.done,
         uploadPercent: 100,
+        total: data['total'] ?? 0,
         imported: data['imported'] ?? 0,
         updated: data['updated'] ?? 0,
-        skipped: data['skipped'] ?? 0,
         errors: (data['errors'] as List?)?.cast<String>() ?? [],
       );
 
-      await Future.delayed(const Duration(seconds: 2));
-      closeDialog();
+      final hasErrors = (data['errors'] as List?)?.isNotEmpty ?? false;
+      if (!hasErrors) {
+        await Future.delayed(const Duration(seconds: 2));
+        closeDialog();
+      }
       if (context.mounted) ref.read(inventoryListProvider.notifier).reload();
     } on DioException catch (e) {
       processingTimer?.cancel();
@@ -926,9 +929,9 @@ class _ImportState {
   final _ImportStage stage;
   final int uploadPercent;
   final int processingSeconds;
+  final int total;
   final int imported;
   final int updated;
-  final int skipped;
   final List<String> errors;
   final String? errorMsg;
 
@@ -936,9 +939,9 @@ class _ImportState {
     required this.stage,
     required this.uploadPercent,
     this.processingSeconds = 0,
+    this.total = 0,
     this.imported = 0,
     this.updated = 0,
-    this.skipped = 0,
     this.errors = const [],
     this.errorMsg,
   });
@@ -1024,25 +1027,39 @@ class _ImportProgressDialog extends StatelessWidget {
         );
 
       case _ImportStage.done:
+        final allFailed = state.total == 0 && state.errors.isNotEmpty;
         return Column(
           mainAxisSize: MainAxisSize.min,
           crossAxisAlignment: CrossAxisAlignment.start,
           children: [
             Row(children: [
-              Icon(Icons.check_circle, color: AppTheme.success, size: 20),
+              Icon(
+                allFailed ? Icons.warning_amber_rounded : Icons.check_circle,
+                color: allFailed ? AppTheme.danger : AppTheme.success,
+                size: 20,
+              ),
               const SizedBox(width: 8),
-              const Text('导入成功', style: TextStyle(fontSize: 14, fontWeight: FontWeight.w500)),
+              Text(
+                allFailed ? '导入失败' : '导入完成',
+                style: const TextStyle(fontSize: 14, fontWeight: FontWeight.w500),
+              ),
             ]),
             const SizedBox(height: 10),
-            Text('新增：${state.imported} 条', style: const TextStyle(fontSize: 13)),
-            if (state.updated > 0)
-              Text('更新：${state.updated} 条', style: const TextStyle(fontSize: 13)),
-            if (state.skipped > 0)
-              Text('跳过：${state.skipped} 条',
-                  style: TextStyle(fontSize: 13, color: Colors.grey[600])),
+            Text('共 ${state.total} 行', style: const TextStyle(fontSize: 13)),
+            Text('成功插入：${state.imported} 行', style: const TextStyle(fontSize: 13)),
+            Text('重复更新：${state.updated} 行',
+                style: TextStyle(fontSize: 13, color: Colors.grey[600])),
             if (state.errors.isNotEmpty)
-              Text('失败：${state.errors.length} 条',
+              Text('失败：${state.errors.length} 行',
                   style: TextStyle(fontSize: 13, color: AppTheme.danger)),
+            if (state.errors.isNotEmpty) ...[
+              const SizedBox(height: 6),
+              ...state.errors.map((e) => Padding(
+                padding: const EdgeInsets.only(top: 4),
+                child: Text(e,
+                    style: TextStyle(fontSize: 12, color: AppTheme.danger)),
+              )),
+            ],
           ],
         );