Log the base path prefix that VSS listens on

[tankyleo]

Users have to pass this prefix to VssClient::new, otherwise the connection fails.

[ldk-reviews-bot]

👋 Thanks for assigning @tnull as a reviewer!
I'll wait for their review and will help manage the review process.
Once they submit their review, I'll check if a second reviewer would be helpful.

[tankyleo]

Unless we want to append the prefix to the string passed to VssClient::new ? In any case, I've caught myself forgetting to add this prefix multiple times

[tnull]

Makes sense

[tnull]

Unless we want to append the prefix to the string passed to VssClient::new ? In any case, I've caught myself forgetting to add this prefix multiple times

We could consider adding it if it's absent, that is, if we're sure it will be always the same endpoint. However, that's orthogonal to this PR, IMO.