Replaces the ad-hoc test-e2e.mjs scripts with a proper test stack:
Vitest covers $lib (api, auth, signalr) with mocked fetch/SignalR/navigation,
and @playwright/test covers auth, stores, lists, recipes, and SignalR realtime
sync between two browser contexts. Tests use uniqueName() for every entity
since the backend has no per-test reset.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Josh Rogers