feat: 补全 AT-SPI 无障碍名称

[re2zero]

概述

为缺失无障碍名称的交互控件添加 setObjectName/setAccessibleName 调用，提升 AT-SPI 覆盖率。

覆盖率对比

指标	补全前	补全后
总控件数	65	65
已命名	48	59
缺失	17	6
覆盖率	73.8%	90.8%

修改文件 (7 files, +17 lines)

• src/controls/linebar.cpp
• src/editor/showflodcodewidget.cpp
• src/widgets/ColorSelectWdg.cpp
• src/widgets/bottombar.cpp
• src/widgets/ddropdownmenu.cpp
• src/widgets/pathsettintwgt.cpp
• src/widgets/window.cpp

验证

• 本地编译通过（cmake + make 100%）
• 补全后重新扫描验证覆盖率提升

Summary by Sourcery

Enhancements:

• Add object and accessible names to previously unnamed controls, menus, actions, and groups to improve AT-SPI accessibility coverage.

[deepin-ci-robot]

Skipping CI for Draft Pull Request.
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[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: re2zero

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Details

Needs approval from an approver in each of these files:

• debian/deepin/OWNERS

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[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

The PR improves AT-SPI coverage from 73.8% to 90.8% by assigning Qt object names and accessible names to 11 previously unnamed controls and related menu components across seven files, with no behavioral changes. Review the chosen naming conventions, especially duplicate or generic names and the lifetime/initialization assumptions for member widgets, menus, actions, and groups.

File-Level Changes

Change	Details	Files
Add stable object and accessible names to previously unnamed interactive controls to improve AT-SPI discoverability.	Name the line-edit clear button, fold-code content editor, color selector button, and window tab bar. Name format actions, dropdown menu components, UTF-8 encoding action, and path-setting button group. Name the main window menu after its actions are initialized.	src/controls/linebar.cpp src/editor/showflodcodewidget.cpp src/widgets/ColorSelectWdg.cpp src/widgets/bottombar.cpp src/widgets/ddropdownmenu.cpp src/widgets/pathsettintwgt.cpp src/widgets/window.cpp

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