Phase 1: minimal Kotlin Android app shows Hub /health

Scaffold the Android Gradle project under android/ mirroring the proven
internet_use_control toolchain: Gradle wrapper 8.11.1, AGP 8.7.3, Kotlin
2.0.21, compileSdk/targetSdk 35, Java/Kotlin 17, minSdk 29 (AGENTS.md §9).

One Activity calls GET http://192.168.20.13:8788/health off the main thread
and renders ok, service, version and every checks value plus the raw body.
INTERNET permission and usesCleartextTraffic are declared for the LAN Hub.
A failed or non-2xx call renders an explicit error line and never reports
success (AGENTS.md §10 rule 4).

applicationId au.audasmedia.hub.phone, versionName 0.1.0-phase1.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

android/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.11.1-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists