Onboarding auto-save (#18):
- Profile name auto-saved via profileService when clicking "Weiter"
- Non-blocking: save failure doesn't block onboarding flow
- Name synced to parent via bindable prop
Widget auto-refresh (#19):
- New useAutoRefresh() utility with visibility-aware polling
- Pauses refresh when tab is hidden, resumes on focus
- Credits: every 60s, Tasks: every 30s, Calendar: every 60s
- Silent refresh: doesn't show loading spinner on subsequent loads
Remove debug logs (#24):
- Removed console.log from AppSlider and auth SSO flow
- Kept console.warn for API retry (useful for debugging)
Dark mode on login (#20):
- Sun/moon toggle button on auth pages (top-right corner)
- Users can switch theme before logging in
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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