Sandbox SDK adds file permission control

Vercel Sandbox SDK 1.9.0 now supports setting file permissions directly when writing files.

By passing a mode property to the writeFiles API, you can define permissions in a single operation.

This eliminates the need for an additional chmod execution round-trip when creating executable scripts or managing access rights inside the sandbox.

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sandbox.writeFiles([{
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  path: 'run.sh',
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  content: '#!/bin/bash\necho "ready"',
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  mode: 0o755
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}]);

See the documentation to learn more.