Wrap user root component in an InternalErrorBoundary that catches all
descendant errors (setup, render, lifecycle) via onErrorCaptured and
routes them through exit(error). This prevents yoga WASM state corruption
that occurred when errors propagated uncaught during Vue's render phase.
- Add ErrorOverview component for rendering error frames
- Replace try-catch around mount with onErrorCaptured boundary
- Update testing render() to detect early exit errors
- Convert 3 todo tests to active tests (nested setup, unhandledRejection, post-mount)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Yunfei He
1106be867b