Servo-replacement runtime for Tauri: wires html-cat, css-cat, dom-cat, layout-cat, paint-cat, net-cat, boa-cat, ecma-runtime-cat, and web-api-cat into a single rendering + scripting pipeline. v1.1.0 backs the `tauri_runtime::Runtime` trait surface with a real winit event loop: `Runtime::run` consumes the event loop and opens any windows that were queued via `Runtime::create_window`; `WindowDispatch::set_title` / `show` / `hide` / `close` / `set_size` / `set_position` send commands to the loop via a winit `EventLoopProxy`. The remaining stub-heavy methods continue to return `tauri_runtime::Error` until later 1.x patch releases. The Servo no-AI policy disqualifies upstream contribution; this is the AI-built parallel.