- Replace extendTheme/ColorModeScript with createSystem Provider +
Toaster shims (components/ui, provider, color-mode) and next-themes;
index.tsx renders Provider, App reads useColorMode from the shim and
clears both chakra and legacy theme storage keys on preference change
- theme.tsx restores the v2 identity on v3 primitives: v2 gray/blue/
green/red scales, v2 solid/contrast fills, v2 text-per-size for
button/input/native-select/tag, v2 input heights, v2 heading scale
(xl->4xl etc), v2 switch track/thumb, brighter link underlines
(currentColor/60), +1px tag top padding, 17px body base font
- Default new-user theme light -> dark to match the established dark UI
- App.test rewritten around Provider + MemoryRouter + Home (old CRA
'learn react' assertion no longer applies)
john-okeefe