fix: hold platform-routed CSS transition values in the updates registry

[MatiPl01]

Stacked on #9775.

On iOS, CSS properties routed to Core Animation recorded nothing in the updates registry, so the commit hook had nothing to re-apply over React's committed base value - once the native animation finished, the rendered value reclaimed the layer and a held :active value snapped back to the render color.

This records each platform-routed transition's target in the registry (both run overloads) so the commit hook keeps it applied over React's base. Uniform for all Core Animation transitions, no .mm change, no-op on Android.

Verified on the iOS simulator: the :active box holds across render commits with no flicker, ordinary transitions animate unchanged, and release resumes the render loop cleanly.

[MatiPl01]

Closing in favor of making the platform (Core Animation) transition persistent for pseudo selectors, which animates quick press/release correctly (partial animation + ease back) instead of applying the settled value instantly. New PR to follow.