Proposal: Include Nats-Time-Stamp in KeyValue.Entry

[SOORAJTS2001]

Hi,

While exploring the codebase, I noticed that the server sends a Nats-Time-Stamp header, but it doesn’t appear to be utilized anywhere in the current implementation.

I believe exposing this field through the KeyValue.Entry class could be quite useful — especially for applications that need to track when a particular entry was stored or updated. It would help in better managing data lifecycle, synchronization, or even for debugging purposes.

Would love to hear your thoughts on this. If it makes sense, I’d be happy to contribute a PR.

Thanks and regards,
Sooraj T S