🐛 fix(update): 修复桌面端更新安装与重启流程

- macOS 下载完成后改为直接走安装更新链路，不再只打开安装目录
- Windows 更新脚本在重启时显式带上目标工作目录，提升安装后拉起稳定性
- 删除失效的 winget 发布工作流，并补充前端与脚本回归测试

Fixes #585

.github/workflows/release-winget.yml

@@ -1,22 +0,0 @@
-name: Publish to WinGet
-on:
-  push:
-    tags:
-      - 'v*'
-  workflow_dispatch:
-    inputs:
-      release_tag:
-        required: true
-        description: 'Tag of release you want to publish'
-        type: string
-
-jobs:
-  publish:
-    runs-on: windows-2025-vs2026
-    steps:
-      - uses: vedantmgoyal9/winget-releaser@v2
-        with:
-          identifier: Syngnat.GoNavi
-          installers-regex: 'GoNavi-windows-(amd64|arm64)\.exe$'
-          release-tag: ${{ inputs.release_tag || github.ref_name }}
-          token: ${{ secrets.WINGET_TOKEN }}