git:20260704.209df49 to git:20261005.2bd6ec2

# helpers/ — the shared prop system (blast radius: every component)

Three things live here:

- **`useBulmaClasses`** — the hook every component routes its Bulma helper props through

(color, spacing `m`/`p`, typography, flexbox, visibility). It aggregates the per-concern

hooks: `useColorClasses`, `useSpacingClasses`, `useTypographyClasses`, `useFlexboxClasses`,

`useVisibilityClasses`, `useOtherClasses`. `classNames.ts` is the class-string builder.

- **`Config.tsx`** — `ConfigProvider` context for the global class prefix (pairs with the

`bestax-prefixed` CSS flavor; all class emission must respect it — tests assert prefixed

output) and the default icon library (`useIconLibrary`).

- **`Theme`** — CSS-variable theming (`--bulma-*` overrides) and `colorMode`

**Changing a helper prop ripples everywhere.** A new or renamed helper prop must update: the

concern hook + `useBulmaClasses` types, tests, the helpers docs (`docs/docs/api/helpers/`,

`docs/docs/guides/helpers/`), and the skill reference

`skills/bestax-custom-component/references/api.md` — then `pnpm gen:catalog`.

Valid-value constants exported here (colors, sizes, alignments) are public API used by

consumers and the skills — extend, don't reorder or remove.