//! Hello Slint — OxiUI facade using the slint backend.
//!
//! Run with:
//! ```sh
//! cargo run --example hello_slint --features slint -p oxiui
//! ```
//!
//! In M5, this example runs in headless collection mode (no window is opened).
//! The content closure executes against [`oxiui_slint::SlintCtx`], and all
//! widget descriptions are collected in memory. This satisfies the "example
//! builds" acceptance criterion for M5 without requiring a display.
//!
//! A native slint window (via `slint::run_event_loop()`) is planned for M6.