docs(skills): align Lottie guidance with runtime adapter

[kiyeonjeon21]

Summary

This is a small docs/skills consistency update for Lottie guidance.

• Updates the visual techniques Lottie example to use the render-safe lottie-web pattern with autoplay: false and window.__hfLottie registration.
• Corrects the Remotion Lottie API mapping so it does not imply lottie.loadAnimation() returns a Promise.
• Clarifies loop/playbackRate guidance to match the current adapter behavior, which seeks absolute composition time.

Testing

• bun run lint:skills
• bunx oxfmt --check skills/hyperframes/references/techniques.md skills/remotion-to-hyperframes/references/api-map.md skills/remotion-to-hyperframes/references/lottie.md
• git diff --check

[miguel-heygen]

Technically accurate throughout. All three fixes are correct:

• loadAnimation is synchronous — the old .then() chain was wrong
• autoplay: false + window.__hfLottie.push(anim) matches the adapter's own documented pattern exactly
• Loop/playbackRate clarification aligns with the adapter's absolute-time seek behavior

Clean docs fix.