Parent issue: #3266
This issue is reserved fir gsoc, do not take over it
Scope
Implement Python gRPC stub generation using Fory serialization only.
Detailed tasks
- Emit
*_service.py base interface and *_grpc.py binding.
- Generate servicer base class and stub class using grpc unary/stream APIs.
- Use Fory serializer/deserializer callables for request/response.
- Add golden codegen tests for file names and signatures.