Add virtualized conversation content

[Jaksenc]

Summary

• add an opt-in ConversationVirtualizedContent component backed by @tanstack/react-virtual
• reuse the existing use-stick-to-bottom scroll element so auto-scroll and the scroll button keep working in the same Conversation surface
• add tests for visible-row rendering and custom class names
• update the conversation docs and preview example with virtualized usage

Fixes #103.

Testing

• pnpm --filter @repo/elements test
• pnpm exec oxlint packages/elements/src/conversation.tsx packages/elements/tests/conversation.test.tsx packages/examples/src/conversation.tsx
• pnpm exec oxfmt --check packages/elements/src/conversation.tsx packages/elements/tests/conversation.test.tsx packages/examples/src/conversation.tsx 'apps/docs/content/components/(chatbot)/conversation.mdx'
• git diff --check

Notes

• I also ran pnpm run check. It currently stops on pre-existing formatting issues in apps/docs/content/components/(chatbot)/confirmation.mdx, apps/docs/content/components/(chatbot)/message.mdx, and apps/docs/package.json before reaching lint; those files are unrelated and left untouched.

[vercel]

@Jaksenc is attempting to deploy a commit to the Vercel Team on Vercel.

A member of the Team first needs to authorize it.

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	npm/​@​tanstack/​react-virtual@​3.13.24

View full report