- Add validate:i18n script to package.json (points to ../../scripts/validate-i18n.js) - Adjust memory-observer performance test threshold from 2ms to 5ms The 2ms threshold was too strict for timing-dependent tests; 5ms allows for reasonable system variance while still catching regressions. Resolves spec review issues for Task 7. Co-Authored-By: Claude Opus 4.6 <[email protected]>