Release v0.2.1

What's Changed

• Merge pull request #12 from cgartlab/codex/redesign-introduction-page
• redesign landing page intro section
• fix: 统一所有版本号为 v*.. 格式
• fix: 修复剩余的 golangci-lint 问题
• fix: 修复 golangci-lint 报告的多个问题
• docs: 更新 README 和主页介绍新功能
• feat: 本地数据库搜索和视觉进度条功能
• fix: 代码审查发现的细节问题
• fix: 代码审查发现的多个问题
• fix: 移除搜索命令的环境检查
• fix: 支持 winget 中文乱码表头解析
• fix: 修复 winget 搜索中文表头解析问题
• fix: 修复交互问题并更新文档
• docs: 更新 CHANGELOG 至 v0.1.6
• Merge pull request #10 from cgartlab/codex/optimize-code-structure-and-logging-module-k676fp
• refactor setup flow and enhance release logging
• Merge branch 'main' of https://github.com/cgartlab/SwiftInstall
• Merge pull request #9 from cgartlab/codex/optimize-software-interface-features-s2gl9l
• Merge branch 'main' into codex/optimize-software-interface-features-s2gl9l
• docs: 更新项目文档和许可证
  Full Changelog: v0.0.0...v0.2.1