* feat(board): persist category collapse state in localStorage for guests
Authenticated users already had their collapse state saved server-side.
This extends the same behaviour to unauthenticated (guest) users by
reading/writing localStorage keyed by section ID.
On mount, if the user is a guest, the stored value is applied to the
disclosure. On toggle, guests write to localStorage instead of calling
the protected API mutation.
Closes#3355
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* refactor: set localStorage value as useDisclosure default instead of useEffect
Replaces the useEffect that read localStorage after mount with a direct
initial value computation passed to useDisclosure. Removes the effect,
the open/close destructuring, and the useEffect import.
Note: initialCollapsed is computed during render rather than post-mount,
which may cause a hydration mismatch on SSR if localStorage differs from
the server-provided section.collapsed. The typeof window guard handles
the SSR case.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>