chore(android): publish companion as raw APK instead of zip

Serve the companion download as a plain .apk so a phone installs it
straight from the link/QR with no unzip step. Repoint the in-app
download URL, the ship + publish scripts, and the pre-push hook at
archipelago-companion.apk, and drop the legacy .apk.zip.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Android/ship-companion.sh

@@ -1,7 +1,8 @@
 #!/usr/bin/env bash
 #
 # Build the Android companion app and publish it as the served download
-# (neode-ui/public/packages/archipelago-companion.apk.zip), then commit + push.
+# (neode-ui/public/packages/archipelago-companion.apk — a plain APK a phone can
+# install straight from the link), then commit + push.
 #
 # Use this INSTEAD of `git push` when shipping the companion app, so the
 # downloadable APK on the node always matches what's on main.
@@ -17,7 +18,8 @@ export JAVA_HOME="${JAVA_HOME:-/opt/homebrew/opt/openjdk@17}"
 export ANDROID_HOME="${ANDROID_HOME:-$HOME/Library/Android/sdk}"
 
 APK="Android/app/build/outputs/apk/debug/app-debug.apk"
-DEST="neode-ui/public/packages/archipelago-companion.apk.zip"
+DEST="neode-ui/public/packages/archipelago-companion.apk"
+OLD_ZIP="neode-ui/public/packages/archipelago-companion.apk.zip"
 
 echo "==> Building debug APK"
 ( cd Android && ./gradlew :app:assembleDebug --console=plain -q )
@@ -25,8 +27,11 @@ echo "==> Building debug APK"
 
 echo "==> Publishing -> $DEST"
 mkdir -p "$(dirname "$DEST")"
-rm -f "$DEST"
-( cd "$(dirname "$APK")" && zip -j -q "$ROOT/$DEST" "$(basename "$APK")" )
+cp "$APK" "$DEST"
+# Drop the legacy zipped artifact so the served download is the raw APK only.
+if [ -f "$OLD_ZIP" ]; then
+  git rm -q --ignore-unmatch "$OLD_ZIP" 2>/dev/null || rm -f "$OLD_ZIP"
+fi
 
 git add "$DEST"
 if git diff --cached --quiet; then