Android build of the phone app

[LetsGetToWorkBro]

Asked in Discord: is this iOS-only? No. iOS-first on resources, not on purpose.

The phone app is Expo/React Native with zero Apple-specific native code. Audit of what's actually there:

• Every dependency is cross-platform (expo-camera, expo-notifications, expo-haptics, expo-router, react-native-svg, …). No iOS-only native modules.
• phone-app/app.json already carries an android section (package com.letsgettoworkbro.dreamlayer, adaptive icon).
• Exactly one file branches on Platform.OS (app/_layout.tsx).
• Nothing binds the app to iOS Bluetooth: the phone talks to the Brain over HTTP with a pairing code, and the glasses seam is pre-hardware anyway.

So this is not a port, it's a build target. Remaining work:

• eas build --platform android and fix whatever falls out
• Notification channels (Android needs them, iOS doesn't)
• Back-button / navigation behavior pass
• Font + safe-area QA on a couple of real devices (small + large screen)
• Haptics sanity check (expo-haptics maps differently on Android)
• Play Store listing + review

Estimate: days of engineering plus the Play review slog, not months.

👍 this issue if you want it moved up the list. Loud demand moves things.