- base.css: add .notes{display:none!important} so speaker notes are never
visible on the rendered slide (only in S overlay)
- SKILL.md: add NEVER-put-presenter-text rule in authoring rules
- authoring-guide.md: add same rule in What to NOT do section
Fixes issue where AI would put small descriptive/presenter-only text
directly on slide markup instead of inside <div class='notes'>.
- hero.gif (~2.4 MB): intro-deck cover page captured live showing the
3 preview strips all running (full decks / canvas FX / cycling layouts)
- layouts-live.gif (~570 KB): the 31-layout auto-rotator cycling through
kpi-grid -> chart-line -> timeline in real templates/single-page files
- README: hero GIF moved to the very top as the opening visual,
layouts-live.gif inserted below the 31-layout section next to layouts.png