Agent Skills: makepad-rust

Rust patterns and best practices specific to Makepad UI development. Covers widget ownership (WidgetRef, WidgetSet), lifetime management, derive macros (Live, Widget), state management, async architecture with tokio integration (why UI/async separation is needed, global runtime pattern, request channels, response mechanisms like SignalToUI and Cx::post_action), platform-specific code, Unicode/grapheme handling for CJK and emoji text, and performance optimization. Use when writing Rust code for Makepad applications.