Stale IntersectionObserver entries abort callbacks for active observers

Description

The IntersectionObserver manager explicitly tolerates stale native entries when an observer is disconnected between commit and mount. However, encountering one missing registration returns from the entire notification pass, dropping every later entry and callback in the same native batch, including entries for still-active observers.

Expected behavior

A stale entry for a disconnected observer should be ignored while notification continues for all active observers in the batch, matching the equivalent ResizeObserver handling.

React Native Version

0.87.1 and current main

Affected Platforms

New Architecture - All

IntersectionObserver マネージャーの通知パスから始め、古いエントリの処理を、issue で言及されている ResizeObserver の同等の処理と比較します。切断されたオブザーバーに続いてアクティブなオブザーバーが含まれるバッチを再現または調査し、古いエントリが無視され、その後のアクティブなコールバックが引き続き実行されることを確認します。