Clean tracked files now covered by .gitignore

.gitignore

@@ -0,0 +1,61 @@
+# Built application files
+*.apk
+*.aab
+*.ap_
+
+# Files for the ART/Dalvik VM
+*.dex
+
+# Java/Kotlin class files
+*.class
+
+# Generated files
+bin/
+gen/
+out/
+build/
+app/build/
+
+# Gradle files
+.gradle/
+local.properties
+.cxx/
+.externalNativeBuild/
+
+# Log files
+*.log
+
+# Android Studio / IntelliJ
+.idea/
+*.iml
+captures/
+.navigation/
+
+# Keystore files
+*.jks
+*.keystore
+
+# Google Services config (opcional, se não quiseres versionar)
+google-services.json
+
+# NDK
+obj/
+
+# Mac
+.DS_Store
+
+# Windows
+Thumbs.db
+
+# Signing / secrets
+signing.properties
+keystore.properties
+
+# Temporary files
+*.tmp
+*.bak
+*.swp
+*~
+
+# Test outputs
+test-output/