Add React ErrorBoundary with crash recovery UI (Task 1) - #25
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- Wraps <App> in an ErrorBoundary component in index.html - On crash: shows error message with Reload and Reset All Data buttons - Uses ES5-compatible prototype pattern (var assignment) so the class is accessible as a global in the headless test runner - Adds React.Component stub to run-tests.js for class-based components - Adds 2 new tests: render-children path and getDerivedStateFromError - Tests: 107/107 passed (up from 105) - Marks Task 1 complete in BACKLOG.md Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
<App>in anErrorBoundarycomponent so any React crash shows a recoverable UI instead of a blank pagevar ErrorBoundary = (function(){...}())) so it's accessible as a global in the headless Node test runnerReact.Componentstub torun-tests.jsso class-based components work in the test environmentgetDerivedStateFromErrorcorrectnessBACKLOG.mdTest plan
node .claude/hooks/run-tests.js→ 107/107 passedindex.htmlin browser — app loads normally🤖 Generated with Claude Code