Release SleepStrap 6.9.1

[SleepyDebug]

Changes

• add the hidden U+7 Quick Loadout with four calibrated weapon selectors and a configurable global hotkey
• preserve macro selections when individual calibration items change
• fix single-file replay capture startup and refresh the Playbacks gallery live
• finish visible SleepStrap branding cleanup
• bump the application and release documentation to 6.9.1

Validation

• dotnet build Release x64
• self-contained win-x64 single-file publish
• verified file version 6.9.1.0
• verified clipping host starts while Roblox remains running