Community maintenance v3.0.1

[jasonliu1199]

Summary

• Clarifies this fork as a community-maintained edition with roadmap, changelog, maintainer notes, and issue/PR templates.
• Modernizes the Windows build workflow for current GitHub Actions runners.
• Hardens startup and import flows by ensuring the Log directory exists, handling failed/null imports, guarding empty Excel cells, and fixing the Japanese book count SQL lookup.

Verification

• Ran git diff --check locally.
• Validated XML files with xmllint --noout ToastFish.csproj App.config Properties/app.manifest.
• Full WPF build needs GitHub Actions or a Windows machine with MSBuild/NuGet; this macOS environment does not have msbuild, dotnet, or nuget installed.

Related upstream issues/PRs

• Addresses the intent of 修复：日语单词点记住时闪退 Uahh/ToastFish#116.
• Addresses part of 修复因缺失Log文件夹导致随机测试闪退的问题。 Uahh/ToastFish#147.
• Starts reliability work for 两个问题：1.邮件“开始”没反应；2.导入单词打不开 Uahh/ToastFish#214 and win10导入Excel报错 Uahh/ToastFish#171.