TLS MITM doesn't work in Pi due to Bun's unimplemented `SNICallback`

[antonok-edm]

No matter what I configured, I couldn't get any https:// requests to work under Pi with the Gondolin extension. I discovered that the root cause is as follows:

• Pi is built with Bun
• Bun does not support SNICallback
• Gondolin uses SNICallback as part of the TLS MITM

As a result, it's impossible for Gondolin-sandboxed agents running in Pi to make https:// network requests.

I'm not sure if this is issue is better suited for the Pi repo or here, but both are managed by the same org so I figured it can be moved if necessary.

Steps to reproduce

1. Install Pi with the default-packaged pi-extension-gondolin extension
2. Launch a new Pi session
3. !curl http://example.com works, but !curl https://example.com doesn't

[antonok-edm]

Regarding Bun support, #73 describes a similar issue although with a different broken API. I was able to confirm that both issues occur together, i.e. even if you polyfill one API you will still run into the issue with the second one.