flutter_scene 0.22.2

• Four new agent skills alongside flutter_scene-idioms: flutter_scene-verification-loop (the run-settle-capture-correct visual loop and the blind-pairwise judgment rule), flutter_scene-looks (copy-paste EnvironmentSettings presets for a deliberate look), flutter_scene-procedural (terrain, noise, and instancing from code), and flutter_scene-performance (frame-budget measurement and a fixed remediation order). dart run flutter_scene:init and dart run flutter_scene:skills now install every bundled skill.