40a51d855c
Add build_android.sh that cross-compiles the C secp256k1 library for ARM64 using the Android NDK and places the .so in benchmark/src/main/ jniLibs/ where the benchmark APK will package it. Usage: cd quartz/src/main/c/secp256k1 ./build_android.sh cd ../../../../.. ./gradlew :benchmark:connectedAndroidTest Also: - Fix Secp256k1InstanceC.android.kt to use Secp256k1C JNI binding class (same pattern as JVM) so the JNI method names match Java_com_vitorpamplona_quartz_utils_Secp256k1C_native* - Add benchmark/src/main/jniLibs/ to .gitignore https://claude.ai/code/session_011KVZhDcV2G7idNWEBz12GY