Tooltip, toast, and combobox popups still hardcoded light colors
(bg-white, neutral-*, indigo-50) and rendered as white boxes in dark
mode; the objects-table page-size select did the same in app code.
Swap all of them to theme tokens (popover/accent/muted/destructive/
success) and replace the toast's literal "×" with the lucide X icon.
Wire browser chrome into the theme: color-scheme via CSS on
:root/.dark (follows the in-app toggle, not just the OS), a
theme-color meta kept in sync by the preload script and applyTheme(),
plus a unit test for the meta sync.
Extend check-no-raw-colors to also flag shadeless white/black
utilities outside components/ui/ so the objects-table case can't
recur.
Closes#68
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>