feat: add feed v2 highlight cards

[idoshamun]

Summary

• add feedV2 highlight fetching behind a default-on feature flag and normalize highlight feed items
• port the highlight card into shared feed cards for both grid and list layouts, wired into the feed item renderer
• add highlight analytics for impression, card click, and individual highlight clicks without wiring real navigation yet

Testing

• node ./scripts/typecheck-strict-changed.js
• pnpm exec eslint src/graphql/highlights.ts src/lib/feed.ts src/components/FeedItemComponent.tsx src/hooks/feed/useLogImpression.ts src/hooks/useFeed.ts src/components/Feed.spec.tsx
• git diff --check
• attempted NODE_ENV=test pnpm exec jest src/components/Feed.spec.tsx --runInBand --testNamePattern="feedV2 highlight" but local jsdom setup failed before test execution (Cannot read properties of undefined (reading 'testEnvironmentOptions' ))

Follow-ups

• highlight card positioning still looks like an API-side issue and is intentionally left unresolved in this PR
• click handling is analytics-only for now; real click behavior will be wired in later

Preview domain

https://codex-feed-v2-highlights-card.preview.app.daily.dev

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Project	Deployment	Actions	Updated (UTC)
daily-webapp	Ready	Preview	Apr 5, 2026 7:43pm

1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
storybook	Ignored		Apr 5, 2026 7:43pm