v1.0.19-debug

CalDAV: completed Hearthboard-style port (fixed previously-broken build - missing safeParseMultistatus/findPropHref/buildUrl/extractOrigin helpers); event creation color now round-trips (COLOR + X-APPLE-COLOR on upload, read back on download); calendar views (Day/Week/Month) now fill the bottom space with a live current-date + current-hour panel and today's event count. Install by sideloading the APK.