fix(android): stop rewriting localhost to 10.0.2.2

[MikitasK]

Summary

Issue #1247

Fix Android physical-device dev server resolution by removing the unconditional runtime rewrite from localhost to 10.0.2.2

Previously, re.pack treated every Android runtime like an emulator. That caused:

• HMR websocket URLs to resolve to ws://10.0.2.2:8081/__hmr
• async chunk URLs to resolve to http://10.0.2.2:8081/...

It works on emulators, but breaks on physical devices, where 10.0.2.2 is unreachable

This change makes re.pack use the configured dev-server host literally, which allows Android physical devices to work correctly with the standard localhost + adb reverse flow

Test Plan

1. connect an Android physical device with USB debugging enabled
2. start the dev server from apps/tester-app with the default host by pnpm react-native webpack-start
3. run adb reverse tcp:8081 tcp:8081
4. launch "Tester App" on the Android physical device
5. confirm the app loads successfully
6. edit visible UI file such as apps/tester-app/src/App.tsx & save
7. confirm HMR works - the UI should updates without full app relaunch

Recordiing

Screen.Recording.2026-04-16.at.19.01.41.mp4

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