Dashboard Studio 2.2.0: guest invites, personal looks, more themes, Haven widgets and tiles

- Vacuum card: the robot drawn beside its dock by state, last clean, maintenance
- Formula One card: the official F1 look with a user-supplied logo
- Nine more themes; per-person theme, text size and language on Admin, People
- Guest invites: an expiring link and QR code for one dashboard, served on a
  LAN-only guest port, with the Home Assistant connection filtered both ways
- Haven 2.2: home screen widgets, three quick settings tiles, several homes,
  and self-updates from the Haven that Dashboard Studio serves

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

haven/res/drawable/w_bg_on.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#ffffd98a" />
+    <corners android:radius="22dp" />
+</shape>