v4.0.516

## What's Changed

- `@remotion/studio`: Add rulers and guides toolbar button by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10734
- `@remotion/studio`: Fix dragging local assets onto the canvas by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10682
- `@remotion/studio`: Copy agent context from inspector rows by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10684
- `@remotion/studio`: Refine inspector property controls by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10685
- `@remotion/studio`: Keep selected editing handles above canvas polygons by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10689
- `@remotion/studio`: Reveal keyframes during navigation by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10690
- `@remotion/studio`: Add Agent Skills settings by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10691
- `@remotion/studio`: Make all sequence inspector sections collapsible by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10694
- `@remotion/studio`: Open assets in Remotion Convert by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10695
- `@remotion/studio`: Align sidebar content by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10697
- `@remotion/studio`: Emphasize selected timeline tracks by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10705
- `@remotion/studio`: Avoid timeline jumps when selecting tracks by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10708
- `@remotion/studio`: Move keyboard shortcuts info into settings by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10709
- `@remotion/studio`: Show negative sequence starts in timeline by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10712
- `@remotion/studio`: Ignore double-click when the second press drags the sequence by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10716
- `@remotion/studio`: Prevent outline when not using keyboard navigation by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10720
- `@remotion/studio`: Optimize canvas outline rendering by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10721
- `@remotion/studio`: Infer schemas from default props by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10722
- `@remotion/studio`: Align effect inspector controls by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10723
- `@remotion/studio`: Avoid flicker in image timeline tracks by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10724
- `@remotion/studio`: New source code icon by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10725
- `@remotion/studio`: Fix inspector section header hover by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10726
- `@remotion/studio`: Remove redundant success notifications by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10730
- `@remotion/studio`: Move package installation into settings by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10733
- `@remotion/studio`: Unify segmented button controls by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10737
- `@remotion/studio`: Optimize timeline hover outlines by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10741
- `@remotion/studio`: Capture timeline drag pointer moves synchronously by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10742
- `@remotion/studio`: Hide scale controls for tiny outlines by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10743
- `@remotion/studio-server`: Do not drop props passed to interactive components via JSX spread by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10719
- `@remotion/studio-server`: Upgrade Recast by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10746
- `@remotion/studio-codemods`: Gracefully reject unexported composition drops by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10704
- `@remotion/media`: Release broadcast ImageBitmaps after sending by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10718
- `@remotion/media`: Fix 5.1 audio downmixing by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10732
- `@remotion/bundler`: Reduce Studio Fast Refresh latency by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10739

## Elements

- Add preview overwrite option by @samohovets in https://github.com/remotion-dev/remotion/pull/10686

## Docs

- Use Mediabunny frame rate metrics by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10692

## Internal and experimental

- `@remotion/browser-studio`: Store public assets in OPFS by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10683
- `@remotion/browser-studio`: Support remote asset drops by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10702
- `@remotion/browser-studio`: Support duplicating JSX sequences by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10714
- `@remotion/studio`: Fix Browser Studio asset previews by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10728
- `@remotion/studio`: Reject restart in Browser Studio by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10713
- Add React Scan profiling workflow by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10687
- Add Studio CPU profiling command by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10740
- Consolidate slow renderer test workflows by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10745

**Full Changelog**: https://github.com/remotion-dev/remotion/compare/v4.0.515...v4.0.516