initial upload of prototype

.gitignore

@@ -0,0 +1,45 @@
+# Gradle
+.gradle/
+build/
+**/build/
+
+# Local configuration
+local.properties
+
+# Android Studio / IntelliJ
+*.iml
+.idea/
+!.idea/codeStyles/
+!.idea/inspectionProfiles/
+!.idea/runConfigurations.xml
+!.idea/runConfigurations/
+
+# Kotlin
+.kotlin/
+
+# Built artifacts
+*.apk
+*.aab
+*.ap_
+*.dex
+
+# Native / NDK
+.externalNativeBuild/
+.cxx/
+
+# Captures and profiling
+/captures/
+*.hprof
+
+# OS files
+.DS_Store
+Thumbs.db
+
+# Signing keys (never commit)
+*.jks
+*.keystore
+keystore.properties
+
+# Secrets
+google-services.json
+secrets.properties