401 auto re-login, My Location via native GPS, edge-to-edge, brain-car icon

- Client: onUnauthorized hook; 401 clears the token and (in-app) bounces to sign-in
- Map: "My location" uses the native UserLocation fix + flyTo; safe-area insets on
  the floating status bar / controls
- Enable edgeToEdgeEnabled (Android 15 forces it) so headers/back-arrow sit correctly
- App icon: brain-car launcher + adaptive icon

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

app/app.json

@@ -7,8 +7,14 @@
     "orientation": "portrait",
     "userInterfaceStyle": "automatic",
     "newArchEnabled": true,
+    "icon": "./assets/icon.png",
     "android": {
       "package": "top.mowden.bigbrainparking",
+      "edgeToEdgeEnabled": true,
+      "adaptiveIcon": {
+        "foregroundImage": "./assets/adaptive-icon.png",
+        "backgroundColor": "#0F2A33"
+      },
       "permissions": [
         "ACCESS_COARSE_LOCATION",
         "ACCESS_FINE_LOCATION",