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/ic_tile.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Haven's house, as a single-colour mark for quick settings tiles -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp" android:height="24dp" android:viewportWidth="24" android:viewportHeight="24">
+    <path android:fillColor="#ffffff" android:pathData="M12,3.2 L20.6,10.4 L19.3,11.9 L18,10.8 L18,19 C18,19.6 17.6,20 17,20 L14.4,20 L14.4,15.4 C14.4,14.1 13.3,13 12,13 C10.7,13 9.6,14.1 9.6,15.4 L9.6,20 L7,20 C6.4,20 6,19.6 6,19 L6,10.8 L4.7,11.9 L3.4,10.4 Z" />
+</vector>