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/pubspec.yaml

@@ -58,12 +58,29 @@ dev_dependencies:
   build_runner: ^2.4.13
   custom_lint: ^0.7.0
   riverpod_lint: ^2.6.2
+  # Generates launcher icons for Android + iOS from a single source PNG.
+  # Config block below; run `dart run flutter_launcher_icons` to regenerate.
+  flutter_launcher_icons: ^0.13.1
   # In-repo lint rules — lives at the repo root so client_app + mitra_app
   # share the same set. Adds `no_ref_in_dispose` and any future repo-wide
   # guardrails. See halo_lints/lib/halo_lints.dart.
   halo_lints:
     path: ../halo_lints
 
+# Launcher-icon config. Background color mirrors HaloTokens.brandLogoBg
+# (#FF699F) from lib/core/theme/halo_tokens.dart — the documented bg for
+# monochrome/white logos. If the source logo ever becomes full-color,
+# switch both values to `#FFFFFF` (HaloTokens.surface).
+flutter_launcher_icons:
+  android: true
+  ios: true
+  image_path: "assets/icons/logo.png"
+  remove_alpha_ios: true
+  background_color_ios: "#FF699F"
+  min_sdk_android: 24
+  adaptive_icon_background: "#FF699F"
+  adaptive_icon_foreground: "assets/icons/logo.png"
+
 flutter:
   uses-material-design: true
   assets: