Added Android Launcher and Disk Extration

android/README.md

@@ -3,7 +3,8 @@
 Standalone Android/OpenXR build of the Mario Kart Wii recompilation for Quest 2,
 Quest 3, Quest 3S and Quest Pro. The full design, build walkthrough and current
 status live in [docs/quest-port.md](../docs/quest-port.md); this directory only
-holds the Gradle project and its two helper scripts.
+holds the Gradle project, its helper scripts, the game kit tooling
+(`QuestGameKit.psm1`, `Build-QuestGame.ps1`) and `nod-jni`.
 
 ```powershell
 powershell -ExecutionPolicy Bypass -File android/Prepare-QuestDependencies.ps1          # stages the SDL3 3.4.4 AAR once
@@ -14,10 +15,23 @@ powershell -ExecutionPolicy Bypass -File android/Build-Quest.ps1 -Flavor retroRe
 The translated game (the translator's `generated/` tree for **your own**
 PAL `RMCP01` disc) is passed with `-Generated <dir>`; it defaults to the
 installer workspace next to this checkout. No game data is ever part of the
-APK: push the extracted disc afterwards to
+APK, and neither is any translated game code: the base APK carries a game kit,
+and your `libmain.so` is built from your own disc and imported
+(`Build-QuestGame.ps1 -Install`, or **Import from computer** with its `.wcgame`).
+Copy your disc image to the headset (for example `adb push MarioKart.iso
+/sdcard/Download/`) and press **Select disc image** in the launcher, which checks
+and extracts it with nod, as the PC installer does. Or push an already extracted
+disc to
 
 ```
 /sdcard/Android/data/org.wiicompiled.quest/files/WiiCompiledOpenXRVR/DATA
 ```
 
 `Config.toml`, saves and logs live in the same `WiiCompiledOpenXRVR` directory.
+
+The app opens on a 2D launcher panel modelled on the PC launcher (WheelWizard VR):
+**Home** starts the game in the headset and says when DATA is missing, and
+**Settings** edits `Config.toml` (VR camera, render scale, virtual screen,
+resolution, controllers, audio). The game itself is `QuestActivity`, in its own
+`:game` process; `adb shell am start -n org.wiicompiled.quest/.QuestActivity`
+still starts it directly.