Review fixes:
- useMyStores throws on a failed response instead of resolving to [] — a
transient 401/blip no longer looks like "no stores" and bounces an owner off
their own dashboard (query stays in error/retry, keeps prior data).
- Add useRequireOwner() guard and apply it to the owner-only routes
(financial-dashboard + its cash-funds/reports/transactions sub-routes and
shipping-method) so staff who hit those URLs directly are redirected to the
dashboard. (Financial data was already backend-protected; this is the matching
client-side gate.)
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
