add android app

android/.gitignore

@@ -0,0 +1,38 @@
+# Gradle files
+.gradle/
+build/
+
+# Android Studio / IntelliJ files
+.idea/
+*.iml
+*.ipr
+*.iws
+
+# Local configuration
+local.properties
+
+# Log files
+*.log
+
+# Built artifacts
+*.apk
+*.aar
+*.ap_
+*.dex
+
+# OS generated files
+.DS_Store
+Thumbs.db
+
+# Android Captures
+captures/
+
+# External native builds
+.externalNativeBuild
+.cxx
+
+# Kotlin
+.kotlin/
+
+# AI / IDE Artifacts
+.artifacts/