Refactored comments to hoist TooltipProvider to the list level

[9larsons]

What

Rebases the optimization from #25771 onto the current Comments structure. That PR predates the Comments overhaul that split comments-list.tsx into sub-components, so its original diff no longer applies cleanly — but the underlying concern survived the refactor and actually got worse.

Each comment row currently renders its own Radix TooltipProvider instances:

• CommentHeader — timestamp tooltip + commenting-disabled indicator
• CommentMetrics — one per Metric (Replies, Likes, Dislikes, Reports)

That's ~4–6 provider contexts per row. With the virtualized list showing ~20 rows, that's 80–120 provider instances, none of which coordinate tooltip timing (skipDelayDuration only applies within a single provider, so hover delays don't share state across them).

Changes

• Wrap the comments list once in a single TooltipProvider (comments-list.tsx).
• Remove the per-row providers from comment-header.tsx and comment-metrics.tsx.
• The thread sidebar reuses CommentHeader/CommentMetrics and renders within the same React subtree (context flows through the Radix Sheet portal via the React tree), so it stays covered by the same provider.

Net: ~80–120 provider contexts → 1, plus consistent hover-delay behavior across a row's tooltips. No UI/behavior change.

Tests

• Updated comment-header.test.tsx to render within a TooltipProvider, mirroring how the app now supplies it at the list level.
• All comments unit tests pass; lint clean.

Rebases / supersedes #25771.

[coderabbitai]

Important

Review skipped

Draft detected.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 1c012fc0-aeb7-4bc0-b909-7024cb3c54c0

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch ala-comments-tooltip-provider-rebase

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}