Initial commit: JRZ NFC Cloner

Android NFC app with read, write, clone and HCE emulation.
Supports NDEF, NFC-V (ISO 15693), MIFARE Ultralight and Classic.
Dark cyan Material3 theme with edge-to-edge layout.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,19 @@
+# Gradle
+.gradle/
+build/
+**/build/
+
+# Android Studio
+*.iml
+.idea/
+local.properties
+*.DS_Store
+
+# APK / Signing
+*.apk
+*.aab
+*.keystore
+*.jks
+
+# Generated
+app/src/main/assets/