Allows Cilbox to be attached to Unity Events.

[Toys0125]

New Features

• Play-mode persistence: captures and restores UnityEvent persistent-call configurations across edit/play transitions.
• New shim component to route UnityEvents to runtime-invokable methods.
• Editor utility to capture, serialize, and reapply UnityEvent persistent calls per-root or per-scene.

Bug Fixes

• Improved cleanup of stale shim instances present in loaded scenes.

Refactor

• Consolidated scene and prefab processing to ensure consistent handling and preserve proxy references during isolated builds.