Changelog

Rename all user-facing AI references from "PrivStack AI" to "Hugo" across the

tray header, speech balloon, chat watermark, system prompt, and content

suggestion labels. Add "Open Hugo" and "Close Hugo" command items to the

command palette so users can toggle the AI tray via Cmd+K search. Bump desktop

version to 1.50.1.

The 900px width was too narrow — display names like "Surface Elevated"

and "Input Background" were truncated, hex inputs were squeezed, and

the header action buttons were cramped. Widened to 1100x780 and bumped

hex input width from 80 to 95px for full #AARRGGBB visibility.

The ThemeColorKeys registry was missing the new ThemeInputBackground

token and the existing ThemeSurfaceRecessed token, so neither appeared

in the theme customizer dialog. Both are now listed under the Background

group so users can adjust them per custom theme.