[DON'T REVIEW] perf(replay): Defer ReplayIntegration.start() off the main thread by runningcode · Pull Request #5474 · getsentry/sentry-java

Move the expensive work in ReplayIntegration.start() (capture strategy
creation, recorder start, root view listener registration) to the
executor service, keeping only the lightweight state checks and
lifecycle transition synchronous. This saves ~16ms on the main thread
during SentryAndroid.init() (measured on Pixel 3).

The registerRootViewListeners() call is posted to the main looper
handler since it triggers View operations via OnRootViewsChangedListener.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>