v4.0.518

## What's Changed

- [`@remotion/whisper-webgpu`: **New package!**](https://remotion.dev/docs/whisper-webgpu) by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10812
- [`@remotion/studio`: **Add WebMCP tools**](https://remotion.dev/docs/ai/webmcp) by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10827
- `@remotion/captions`: Add forced page breaks by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10805
- `@remotion/media`: Use Mediabunny retry defaults by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10826
- `@remotion/lambda`: Allow single-concurrency Lambda renders by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10797
- `@remotion/studio`: Add explorer header actions by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10831
- `@remotion/studio`: Preserve sidebar order and refine asset actions by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10830
- `@remotion/studio`: Remove asset inspector quick action scrollbar by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10850
- `@remotion/studio`: Add Copy context for agents to composition menu by @YUHAO-corn in https://github.com/remotion-dev/remotion/pull/10828
- [`@remotion/studio-protocol`: Add `isInsideStudio()`](https://remotion.dev/docs/studio-protocol/is-inside-studio) by @samohovets in https://github.com/remotion-dev/remotion/pull/10836
- [`@remotion/studio-protocol`: Add Element catalogs to Studio via `addElementLibraryToStudio()`](https://remotion.dev/docs/studio-protocol/add-element-library-to-studio) by @samohovets in https://github.com/remotion-dev/remotion/pull/10843

## Elements

- Add Social Safe Zones overlay by @samohovets in https://github.com/remotion-dev/remotion/pull/10781
- Add mirrored audio spectrum by @samohovets in https://github.com/remotion-dev/remotion/pull/10816
- Add audio oscilloscope by @samohovets in https://github.com/remotion-dev/remotion/pull/10821
- Remove audio oscilloscope background by @samohovets in https://github.com/remotion-dev/remotion/pull/10833
- Refine on-screen messages element by @samohovets in https://github.com/remotion-dev/remotion/pull/10842
- Stabilize product collection title wrapping by @samohovets in https://github.com/remotion-dev/remotion/pull/10832
- Require hosted preview URLs by @samohovets in https://github.com/remotion-dev/remotion/pull/10822

## Internal and experimental

- `@remotion/canvas`: Add outline calculation interface by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10806
- `@remotion/browser-studio`: Add Studio loading progress bar by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10818
- `@remotion/promo-pages`: Fix HLS video playback in Chrome by @samohovets in https://github.com/remotion-dev/remotion/pull/10819
- Stabilize Studio canvas E2E tests by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/10840
- Expand templates in queued commit messages for `pi` by @samohovets in https://github.com/remotion-dev/remotion/pull/10820

**Full Changelog**: https://github.com/remotion-dev/remotion/compare/v4.0.517...v4.0.518