keyed_indexed_stack 0.2.0

A lazy-loading replacement for IndexedStack with generic keys, keep-alive, preheat, and lifecycle callbacks.

0.2.0

• Breaking: inactive retained children now pause tickers and animations by default.
• Added maintainAnimationWhenInactive to preserve background animation globally.
• Added maintainAnimationWhenInactiveKeys for per-key inactive animation overrides.

0.1.0

• Clarified lifecycle callback timing and rebuild semantics in docs.
• Changed disposeKeys() to release controller-managed retention only.
• Added forceDisposeKeys() for explicit forced disposal of inactive retained children.