[Gateway] Sandboxing environment

[maxvp]

PCX-16343

[hyperlint-ai]

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PR Change Summary

Introduced a sandboxing environment feature for file downloads in the Gateway documentation.

• Updated the description of file quarantine and scanning processes to include sandboxing.
• Added a new section detailing the sandbox environment and its functionality.
• Clarified the behavior of the Gateway when handling previously unseen files.

Modified Files

• src/content/docs/cloudflare-one/policies/gateway/http-policies/file-sandboxing.mdx

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[github-actions]

Preview URL: https://31a37c59.preview.developers.cloudflare.com
Preview Branch URL: https://max-gw-more-sandbox-info.preview.developers.cloudflare.com

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/cloudflare-one/policies/gateway/http-policies/file-sandboxing/	https://max-gw-more-sandbox-info.preview.developers.cloudflare.com/cloudflare-one/policies/gateway/http-policies/file-sandboxing/