App ID + launcher icon rename: halobestie.* → mybestie

- Customer: com.halobestie.client.client_app → com.mybestie
- Mitra:    com.halobestie.mitra.mitra_app  → com.mybestie.mitra
- iOS bundle IDs renamed to match (no .clientApp/.mitra camelCase legacy)

Mechanical rename touches Android build.gradle/Manifest/MainActivity
package, iOS pbxproj/Info.plist bundle IDs, Firebase configs
(google-services.json + GoogleService-Info.plist + firebase_options.dart),
new HaloBestie/Mitra launcher icons via flutter_launcher_icons (pubspec
config + adaptive-icon resources + AppIcon imageset), and the appId
references in every customer maestro flow + both .maestro/config.yaml
files. brandLogoBg (#FF699F) added to halo_tokens for the launcher pink.

Followup: re-register apps in Firebase consoles using the new package IDs;
strategy memo at project-firebase-env-strategy.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

client_app/lib/core/theme/halo_tokens.dart

@@ -22,6 +22,9 @@ class HaloTokens {
   static const Color brandDark = Color(0xFF8C3255);
   static const Color brandSoft = Color(0xFFF7E4E9);
   static const Color brandSofter = Color(0xFFFBEFF3);
+  // Launcher-icon background. Use this pink behind monochrome/white logos.
+  // For full-color logos, use `surface` (#FFFFFF) as the icon background.
+  static const Color brandLogoBg = Color(0xFFFF699F);
   static const Color accent = Color(0xFFF7B26A);
   static const Color accentSoft = Color(0xFFFCEAD3);
   static const Color mint = Color(0xFFB8DBC8);