d91791edaf
- 新增 excel 4.0.6 / path_provider 2.1.5 依赖 - ExcelTemplateService：生成 Programs + Steps 双表模板（保存到应用文档目录） - ExcelImportService：解析 .xlsx 并写入数据库，跳过已存在 code、按 program_code 关联步骤 - programs_page 顶部新增「下载模板」按钮，导入按钮改用 Excel 解析 - 移除被取代的 program_import_service.dart - AppLocalizations 新增 downloadTemplate 键 - 验证：flutter analyze 无新增 issue；flutter build apk --debug 通过
kuaishai2
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