Guard choice interactions without overlay

[han4wluc]

Summary

• replace the fullscreen choice overlay with a derived isChoiceVisible selector threaded into render/template data
• stop auto/skip/next-line timers when a choice becomes visible and block non-choice RouteGraphics actions before action templating or dispatch runs
• preserve choice-origin interactions by tagging click payloads from the choice subtree and avoid clone-sensitive presentation reconstruction by using a line-scan choice selector
• add focused selector, event-bridge, render-state, and VT coverage for the blocked-click regression

Testing

• npm test -- puty.spec.js spec/createEffectsHandler.routeGraphicsEvents.test.js spec/systemStore.choiceVisibilityCloneSafety.test.js
• docker run --rm --user $(id -u):$(id -g) -e RTGL_VT_DEBUG=true -v "$PWD:/app" -w /app docker.io/han4wluc/rtgl:playwright-v1.57.0-rtgl-v1.0.10 rtgl vt screenshot --wait-event vt:ready --concurrency 1 --timeout 60000 --item choice/blocked-non-choice-actions.yaml