v1.0.7-r001: Cross-platform builds, FFI expansion, license, and bug fixes

- Version all crates at 1.0.7-r001 (tracking Salvium C++ 1.0.7)
  - Source-available license: free for author/designees and non-commercial
    use; annual commercial license required for any revenue-generating use
  - Build scripts for Android/iOS/Linux/macOS/Windows producing both
    libsalvium_crypto and libsalvium_ffi
  - CI workflow publishes platform archives to salvium-rs-releases
  - 23 new FFI functions: storage ops, address book, tx notes, attributes,
    staked balance, key derivation, mnemonic
  - Fix stake detection: count owned outputs regardless of spent state
  - Auto-resume testnet integration tests from current chain height

scripts/build-android.sh

@@ -1,20 +1,22 @@
 #!/usr/bin/env bash
-# Build libsalvium_crypto.so for Android (arm64, armv7, x86_64)
+# Build Salvium shared libraries for Android (arm64, armv7, x86_64)
+#
+# Produces:
+#   prebuilt/android/arm64-v8a/libsalvium_crypto.so
+#   prebuilt/android/arm64-v8a/libsalvium_ffi.so
+#   prebuilt/android/armeabi-v7a/libsalvium_crypto.so
+#   prebuilt/android/armeabi-v7a/libsalvium_ffi.so
+#   prebuilt/android/x86_64/libsalvium_crypto.so
+#   prebuilt/android/x86_64/libsalvium_ffi.so
 #
 # Prerequisites:
 #   rustup target add aarch64-linux-android armv7-linux-androideabi x86_64-linux-android
 #   Set ANDROID_NDK_HOME to your NDK path (e.g. ~/Android/Sdk/ndk/26.1.10909125)
-#
-# Produces:
-#   prebuilt/android/arm64-v8a/libsalvium_crypto.so
-#   prebuilt/android/armeabi-v7a/libsalvium_crypto.so
-#   prebuilt/android/x86_64/libsalvium_crypto.so
 
 set -euo pipefail
 
 SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
 ROOT_DIR="$SCRIPT_DIR/.."
-CRATE_DIR="$ROOT_DIR/crates/salvium-crypto"
 OUT_DIR="$ROOT_DIR/prebuilt/android"
 
 if [ -z "${ANDROID_NDK_HOME:-}" ]; then
@@ -40,38 +42,61 @@ declare -A TARGET_CC=(
 # Find the NDK toolchain bin directory
 TOOLCHAIN="$ANDROID_NDK_HOME/toolchains/llvm/prebuilt/linux-x86_64/bin"
 if [ ! -d "$TOOLCHAIN" ]; then
-  # Try macOS path
   TOOLCHAIN="$ANDROID_NDK_HOME/toolchains/llvm/prebuilt/darwin-x86_64/bin"
 fi
+if [ ! -d "$TOOLCHAIN" ]; then
+  TOOLCHAIN="$ANDROID_NDK_HOME/toolchains/llvm/prebuilt/darwin-aarch64/bin"
+fi
 if [ ! -d "$TOOLCHAIN" ]; then
   echo "Error: Cannot find NDK toolchain in $ANDROID_NDK_HOME"
   exit 1
 fi
 
-echo "==> Building salvium-crypto for Android targets..."
+# Crates to build (order matters: ffi depends on crypto, but cargo handles that)
+CRATES=("salvium-crypto" "salvium-ffi")
+
+echo "==> Building Salvium libraries for Android"
 echo "    NDK: $ANDROID_NDK_HOME"
+echo "    Crates: ${CRATES[*]}"
+echo ""
 
 for target in "${!TARGET_ABI[@]}"; do
   abi="${TARGET_ABI[$target]}"
   cc="${TARGET_CC[$target]}"
-  echo "  -> $target ($abi)"
+  echo "  ── $target ($abi) ──"
 
-  # Set linker for this target via CARGO_TARGET env vars
+  # Set linker/compiler for this target via CARGO_TARGET env vars
   target_upper="${target//-/_}"
   target_upper="${target_upper^^}"
   export "CARGO_TARGET_${target_upper}_LINKER=$TOOLCHAIN/$cc"
   export "CC_${target//-/_}=$TOOLCHAIN/$cc"
   export "AR_${target//-/_}=$TOOLCHAIN/llvm-ar"
 
-  cargo build --release --target "$target" --manifest-path "$CRATE_DIR/Cargo.toml"
+  for crate in "${CRATES[@]}"; do
+    echo "    Building $crate..."
+    cargo build --release \
+      --target "$target" \
+      -p "$crate" \
+      --manifest-path "$ROOT_DIR/Cargo.toml"
+  done
 
+  # Copy built .so files to prebuilt directory
   mkdir -p "$OUT_DIR/$abi"
-  cp "$CRATE_DIR/target/$target/release/libsalvium_crypto.so" \
+
+  # salvium-crypto -> libsalvium_crypto.so
+  cp "$ROOT_DIR/target/$target/release/libsalvium_crypto.so" \
      "$OUT_DIR/$abi/libsalvium_crypto.so"
+
+  # salvium-ffi -> libsalvium_ffi.so
+  cp "$ROOT_DIR/target/$target/release/libsalvium_ffi.so" \
+     "$OUT_DIR/$abi/libsalvium_ffi.so"
+
+  echo ""
 done
 
 echo "==> Done. Libraries:"
 for target in "${!TARGET_ABI[@]}"; do
   abi="${TARGET_ABI[$target]}"
-  ls -lh "$OUT_DIR/$abi/libsalvium_crypto.so"
+  echo "  $abi:"
+  ls -lh "$OUT_DIR/$abi/"*.so
 done