Event-Detail zeigt "Erstellt von" (wenn != ich) + Privat-Hinweis; Editor hat
Privat-Toggle (nur lokale Kalender, durch saveEvent/Repo durchgereicht).
Login speichert userId + displayName (CredentialStore) für Vergleiche.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
- CalEvent parsing: handle Android's JSONObject.optString JSON-null quirk that
returned the string "null" — this made every event blue (color "null" →
fallback) and showed "null" for empty location/description. Now null-safe.
- Event detail: copy-to-calendar action; calendar row uses a calendar icon
(was identical to the notes icon); empty location/notes rows hidden
- Event editor: copy mode (prefill from an existing event, save as new)
- Settings: hour height, text/line contrast are now button chips (like the
cache range); color picker wraps, shows the current colour and a check mark
- Month scroll perf: precompute a day→events index once per change and only
reload when the visible month actually changes (was filtering every cell
every frame → laggy)
- Splash: dark window/splash background + inset launcher icon (was an ugly
white box on startup)
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>