Aptos Keyless Demo Broken

[tippi-fifestarr]

https://aptos.dev/build/guides/aptos-keyless#example

Access blocked - not able to fully experience it

[gregnazario]

@cursoragent can you remove this active demo for Aptos keyless, and then close this issue when the PR is merged

[cursor]

Removed the broken Aptos Keyless StackBlitz demo from the documentation. Here's what I did:

• Removed the StackBlitz iframe embed from aptos-keyless.mdx (the main Keyless landing page) — the entire "Example" section with the broken iframe was deleted
• Cleaned up simple-example.mdx — removed the broken StackBlitz iframe and stale "undergoing maintenance" notice, replacing them with a clean link to the GitHub repository and instructions to run the example locally
• Updated federated-keyless/simple-example.mdx — replaced the stale maintenance notice with instructions to run the example locally

No Spanish or Chinese translations of these files existed, so no translation updates were needed. All linting and type checks pass.