fix: preserve reverse-loop parallax item styles

[dohooo]

Summary

• fix the loop-mode first-frame render window so parallax reverse-wrap items are already mounted before swiping backward from index 0
• share the visible-range calculation between the hook and ItemRenderer initialization
• add an issue loop={true} — Styles (backgroundColor, etc.) not applied to reverse-direction cloned items in parallax mode #899 dedicated regression that asserts reverse-looped items keep their React style/props

Minimal reproduction

• loop={true}
• mode="parallax"
• start at defaultIndex={0}
• swipe backward across the loop boundary

Before this change, the reverse-side item was missing from the first reverse-wrap ACTIVE frame, so its React-driven style/props arrived a tick late.

Verification

• yarn test --runInBand src/components/issue-899-parallax-reverse-loop.test.tsx
• yarn test --runInBand src/layouts/parallax.test.ts src/components/Carousel.test.tsx
• yarn types

Closes #899

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Latest commit: 627996a

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Project	Deployment	Actions	Updated (UTC)
react-native-reanimated-carousel	Ready	Preview, Comment	Mar 30, 2026 2:26am

[codecov]

Codecov Report

❌ Patch coverage is 96.77419% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 84.50%. Comparing base (fec99d7) to head (627996a).

Files with missing lines	Patch %	Lines
src/hooks/useVisibleRanges.tsx	96.55%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #913      +/-   ##
==========================================
+ Coverage   84.32%   84.50%   +0.17%     
==========================================
  Files          37       37              
  Lines        1040     1052      +12     
  Branches      362      366       +4     
==========================================
+ Hits          877      889      +12     
  Misses         67       67              
  Partials       96       96              

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