Stories no longer wrap with QueryClientProvider, ToastProvider,
ThemeProvider, or MemoryRouter; global StorybookDecorator provides them.
- Route-specific pages use parameters.router.initialEntries
(ResetPasswordPage, VerifyEmailPage) or minimal MemoryRouter+Route
where useParams is needed (TrackDetailPage, PlaylistDetailPage).
- Stories that seeded query cache use useQueryClient() from global
decorator (FollowButton, CollaboratorManagement, CommentSection).
- Navbar, AuthLayout, DashboardLayout, Header, and 25+ story files
simplified to layout divs only.
Co-authored-by: Cursor <cursoragent@cursor.com>
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