fix(OrbitImages): prevent responsive scale flash on mount and refresh

[achelie]

Summary

Fix OrbitImages briefly rendering at the wrong size when responsive={true}.
On mount and remount (e.g. demo Refresh), the component initially used scale=1 before ResizeObserver updated it to the correct value, causing a visible zoom-in-then-shrink flash.

Solution:

• Initializes scale as null instead of 1
• Measures container scale in useLayoutEffect (before paint)
• Hides the scaling layer with visibility: hidden until scale is ready
• Applies transform only when scale !== null
• Uses pathWidth / (scale ?? 1) for safe stroke width in non-responsive mode
• Updates all 4 variants (JS-CSS, JS-TW, TS-CSS, TS-TW) and registry JSON files

Fixes #970

Before (bug):

Before.the.repair.mov

After (fix):

After.repair.mov

Test plan

• Open /animations/orbit-images locally
• Click Refresh multiple times — no zoom-in/zoom-out flash
• Reload the page (F5) — same result
• Verified on desktop; no console errors
• All 4 component variants updated
• Registry outputs for OrbitImages regenerated

[DavidHDev]

Thanks for the fix!