fix(timeline): implement functional track visibility toggle

[nino-chavez]

Summary

• Added hidden property to TimelineTrack interface
• Implemented toggleTrackVisibility function in timeline store
• Eye icon now toggles between Eye/EyeOff on click
• Hidden tracks display with 50% opacity

Related Issue

Fixes #658

Test plan

• Eye icon on timeline track is clickable
• Clicking toggles between Eye and EyeOff icons
• EyeOff shows in destructive (red) color
• Hidden track content has reduced opacity
• Toggle persists across interactions
• Playwright E2E test included

Note

The underlying preview system has known memory management issues (VideoFrame not being closed) which can cause crashes during video playback. This fix follows the same pattern as the existing toggleTrackMute function and does not introduce new issues.

🤖 Generated with Claude Code

[vercel]

@nino-chavez is attempting to deploy a commit to the OpenCut OSS Team on Vercel.

A member of the Team first needs to authorize it.

[netlify]

👷 Deploy request for appcut pending review.

Visit the deploys page to approve it

Name	Link
🔨 Latest commit	bc26237

[coderabbitai]

Warning

Rate limit exceeded

@nino-chavez has exceeded the limit for the number of commits that can be reviewed per hour. Please wait 29 minutes and 23 seconds before requesting another review.

⌛ How to resolve this issue?

After the wait time has elapsed, a review can be triggered using the @coderabbitai review command as a PR comment. Alternatively, push new commits to this PR.

We recommend that you space out your commits to avoid hitting the rate limit.

🚦 How do rate limits work?

CodeRabbit enforces hourly rate limits for each developer per organization.

Our paid plans have higher rate limits than the trial, open-source and free plans. In all cases, we re-allow further reviews after a brief timeout.

Please see our FAQ for further information.

---

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.}