- Update Plant test fixtures to use roomID instead of deprecated location
- Add URLDataFetcher protocol to ImageCache for dependency injection
- Update ImageCacheTests to use protocol-based mock instead of URLSession subclass
- Add missing cancelReminders(for:plantID:) method to MockNotificationService
- Add Equatable conformance to ImageCacheError for test assertions
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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