Fixes

Solves a lifetime race condition with file asset loaders. This would sometimes manifest as a SEGV when tearing down the Rive view. As the C++ runtime exposes them as RefCnt, we now correctly associate their lifetimes with Kotlin and dereference rather than delete the object.

⚠️ Also correctly includes RiveUI and other Compose related classes initially scheduled for 10.3.0. Please use this version and above instead. The files were not included due to the release being cut before downstreaming had completed.

• chore: refactor scripting api (#10218) 85aa06d5db b1fc7bd
• fix: lifecycle memory management (#10237) 6a23aeed19 bf69c63 (contains the Compose work after a downstream correction)
• feat: add support for artboard style overrides in lists (#10212) ca58369fb6 2d50ec9