RoundingWell / care-ops-frontend / 5bb461b6-7a75-42f2-96bd-c152cc1fbf32

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Pull #1730

circleci

test(local-store): make storage stubs work on Firefox

cy.stub(localStorage, ...) is silently inert on Firefox, where Storage is
an exotic object whose built-in methods cannot be replaced on the instance.
The real method ran instead, so the QuotaExceededError/unexpected-error
rethrow tests failed and the SecurityError-swallow tests passed vacuously.

Swap the whole localStorage object via a useFakeStorage() helper so the
stubs apply in every browser. Verified 13/13 on both Chrome and Firefox.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

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