[ZeroGPU] Handshake-based postMessage (#10270)
* handshake-based ZeroGPU postMessage
* HF Hub dev mode
* window is always defined here
* pnpm format:write
* add changeset
* change
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Co-authored-by: pngwn <hello@pngwn.io>
Co-authored-by: gradio-pr-bot <gradio-pr-bot@users.noreply.github.com>
Co-authored-by: Abubakar Abid <abubakar@huggingface.co>
