Platform support: iOS

[runyaga]

Summary

iOS is not currently supported. The hook/build.dart returns early with no assets for iOS.

Current state

• hook/build.dart line 47: if (libName == null) return; — iOS falls through to null
• No cross-compilation target for iOS in _rustTriple
• No pre-built iOS binaries in native releases
• No CocoaPods/XCFramework packaging

TODO

• Add cargo-ndk or manual cross-compilation for aarch64-apple-ios
• Build universal XCFramework (device + simulator)
• Add iOS target to hook/build.dart
• Add iOS binaries to native-release.yaml
• Test in a Flutter iOS app