feat: how about support grpc as protocol between server and client ？

## Feature Request

**Is your feature request related to a problem? Please describe:**

gRPC have become very common and more ecosystem
How about support grpc as protocol between server and client ？
multiple language client maybe very easy to implement .

This is a very early discusstion

**Describe the feature you'd like:**

**Describe alternatives you've considered:**

**Teachability, Documentation, Adoption, Migration Strategy:**

No files, tests, or entry points are named. Start by mapping the existing server-client protocol and reviewing the project’s contribution guidance; done would require an agreed gRPC design, implementation scope, compatibility plan, and tests.

Written by the indexing model from the issue text.