LanMountainDesktop/.trae/specs/dock-back-to-windows-button-display/checklist.md

Checklist

• AppSettingsSnapshot.BackToWindowsButtonDisplayMode exists and defaults to IconAndText.
• AppSettingsSnapshot contains icon source, Fluent icon name, and text icon settings with safe defaults.
• General > Basic Settings includes one folded back-to-platform button settings expander.
• The expander includes the display-mode dropdown.
• The expander includes nested icon source, Fluent icon popup picker, and text icon input controls.
• The Dock button left icon slot renders either a Fluent icon or custom text.
• IconAndText, IconOnly, and TextOnly modes update the Dock button live.
• Icon source, Fluent icon name, and text icon updates refresh the Dock button live.
• The selected mode is preserved when MainWindow saves app settings.
• Localization keys exist for zh-CN, en-US, ja-JP, and ko-KR.
• dotnet build LanMountainDesktop.slnx -c Debug succeeds.