- Add Contract v1 breaking changes to CHANGELOG.md - Document field name changes (fetchedAt→fetchTime, url→mediaUrl) - Update test mocks in www/index.html and ios/App/App/public/index.html - Mocks now return Contract v1 format (fetchTime, title, body, ttlSeconds) BREAKING CHANGE: API responses now use Contract v1 field names. See docs/CONTRACT_V1_BREAKING_CHANGES.md for migration guide.