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. v1.10.0 implements `WebviewDispatch::reparent` by introducing a stable `WebviewId` separate from the parent window id; webview-targeted events carry the webview's id and the handler looks up the current parent window via a `webview_to_window` map, so dispatchers survive a reparent and continue addressing the same webview at its new window. The Servo no-AI policy disqualifies upstream contribution; this is the AI-built parallel.