Auto-fixed formatting issues and removed unused imports introduced
by background execution agents across currency, i18n, and sharing code.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Implements 5-step onboarding: Welcome, Hobby Picker, Item Browser,
Review, and Done. Includes hobby card selection, popular item grid
with check/uncheck, review list with remove, CSS step transitions,
and responsive grid layout.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>