Release 1.0.9-dev.1

• release: windows v1.0.9-dev.1
• Add git commit convention: no AI co-author trailers
• Update README: pre-commit hook setup is now automatic via melos bootstrap
• Wire pre-commit hook setup into melos bootstrap
• Add pre-commit hook to force prod app icon before every commit
• Add Windows support to README, dev/prod app+tray icons, DB flavor isolation, and backup
• Merge branch 'main' into dev
• release: windows v1.0.8
• Release v1.0.8: Dashboard redesign, Windows desktop support, and style system UI fixes (#5)