Summary

• bootstrap a native SwiftUI macOS slap detector with live Apple SPU accelerometer telemetry
• trim the slap sound, add the fart sound, and add an in-app sound picker
• add a real Xcode project with an AppIcon asset catalog plus SwiftPM/test/packaging support

Verification

• DEVELOPER_DIR=/Applications/Xcode.app/Contents/Developer swift test
• DEVELOPER_DIR=/Applications/Xcode.app/Contents/Developer xcodebuild -project SlamDih.xcodeproj -scheme SlamDih -configuration Debug -destination 'platform=macOS' CODE_SIGNING_ALLOWED=NO build
• ./scripts/package-app.sh
• app launch smoke test
• AppleSPUHIDDevice probe read live accelerometer reports