use PathBuf;
/// Returns the base directory where bundled resources live (assets are now under src/assets/).
///
/// - In a macOS .app bundle the executable is at `<app>.app/Contents/MacOS/<bin>`
/// and resources are copied to `<app>.app/Contents/Resources/`.
/// - During development (`cargo run`) the CWD is the crate root, so we just
/// return the current directory.