- IAPManager: add resetForTesting() to discard stale cached subscription state
- UITestMode: call resetForTesting() after clearing defaults (fixes 5 banner tests)
- StabilityTests: use NSPredicate wait for isSelected (iOS 26 Liquid Glass)
- SettingsActionTests: use coordinate tap for clear data and analytics toggle
- IconPackTests: add horizontal scroll fallback for off-screen icon packs
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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