fix-rollbar (7651/465059372158): ignore React Native Fabric addViewAt error

[astashovai]

Summary

• Added addViewAt: failed to insert view to the Rollbar exception ignore list

Rollbar

https://app.rollbar.com/a/astashov/fix/item/liftosaur/7651/occurrence/465059372158

Decision

Added to ignore list. This is a React Native Fabric internal error (java.lang.IllegalStateException in SurfaceMountingManager.addViewAt) caused by the native view tree getting into an inconsistent state. The entire stack trace is within React Native's Fabric rendering engine and Android's ViewGroup — zero application code is involved. This cannot be fixed at the application level.

Root Cause

React Native Fabric's SurfaceMountingManager attempts to add a child view that already has a parent (The specified child already has a parent. You must call removeView() on the child's parent first). This is a known race condition in React Native's native view mounting pipeline during rapid UI updates. Occurred on Android 16 (Samsung Galaxy S24+).

Test plan

• Build succeeds
• Lint passes
• Unit tests pass (825 passing)
• Playwright failures are all pre-existing (dev server not running in CI)