fix(web): work log Show more — cursor, transition & scroll

[Marve10s]

Summary

• Cursor pointer: The "Show more" button in work log / tool call groups was missing cursor-pointer, showing a default arrow on hover instead of a hand. Fixed by switching to the existing CollapsibleTrigger component which includes it.
• Smooth transition: Replaced the instant show/hide with the existing Base UI Collapsible + CollapsiblePanel component, giving a smooth 200ms height animation when expanding/collapsing overflow entries.
• No auto-scroll on expand: Expanding a work log group during a running session would yank the viewport to the bottom via scheduleStickToBottom. Now disables auto-scroll on toggle so the user stays where they clicked; the scroll-to-bottom button appears if they want to jump back.

---

Note

Medium Risk
Changes chat timeline scrolling behavior and work-log expansion rendering; regressions could impact viewport stability during active sessions, but scope is limited to UI interaction logic.

Overview
Fixes work log/tool-call group expansion to use the shared Collapsible components, adding proper pointer cursor and a smooth height transition while keeping overflow rows mounted for animation.

Prevents unwanted jump-to-bottom when expanding/collapsing a work group by cancelling pending stick-to-bottom, disabling auto-scroll, and forcing the scroll-to-bottom affordance to appear.

^{Reviewed by Cursor Bugbot for commit f4e55ee. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Fix work log 'Show more' cursor, transition, and scroll behavior

• Replaces the inline toggle button in MessagesTimeline.tsx with Collapsible/CollapsibleTrigger components, showing 'Show N more' or 'Show less' based on overflow count.
• Overflow entries are now kept mounted in the DOM when collapsed (keepMounted) instead of being unmounted, fixing transition behavior.
• Toggling a work group in ChatView.tsx now cancels any pending stick-to-bottom scroll, disables auto-scrolling, and forces the scroll-to-bottom button to appear.

^{Macroscope summarized f4e55ee.}

[coderabbitai]

Important

Review skipped

Auto reviews are disabled on this repository. 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: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: 295d9cb5-44fe-4d37-a4ff-dd33db44b337

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

---

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.}

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

^{Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

[Marve10s]

2026-03-30.12.07.23.mp4

Sorry, took a second for Codex and I also needed to approve access to folders for Claude :)