feat: add grpc proxy and mocks

Makefile

@@ -82,4 +82,11 @@ proto-format:
 proto-lint:
 	@$(protoImage) buf lint proto/ --error-format=json
 
-.PHONY: proto-all proto-gen proto-format proto-lint
+.PHONY: proto-all proto-gen proto-format proto-lint
+
+## mock-gen: Re-generates DA mock
+mock-gen: mocks/Execute.go
+.PHONY: mock-gen
+
+mocks/Execute.go: execution.go .mockery.yaml
+	@mockery

go.mod

@@ -7,6 +7,7 @@ toolchain go1.22.4
 require (
 	github.com/cosmos/gogoproto v1.5.0
 	github.com/rollkit/rollkit v0.13.7
+	github.com/stretchr/testify v1.9.0
 	google.golang.org/grpc v1.65.0
 )
 
@@ -66,7 +67,7 @@ require (
 	github.com/prometheus/procfs v0.12.0 // indirect
 	github.com/sasha-s/go-deadlock v0.3.1 // indirect
 	github.com/spaolacci/murmur3 v1.1.0 // indirect
-	github.com/stretchr/testify v1.9.0 // indirect
+	github.com/stretchr/objx v0.5.2 // indirect
 	github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7 // indirect
 	go.etcd.io/bbolt v1.3.7 // indirect
 	go.uber.org/multierr v1.11.0 // indirect

go.sum

@@ -307,6 +307,8 @@ github.com/spf13/jwalterweatherman v1.0.0/go.mod h1:cQK4TGJAtQXfYWX+Ddv3mKDzgVb6
 github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
 github.com/spf13/viper v1.3.2/go.mod h1:ZiWeW+zYFKm7srdB9IoDzzZXaJaI5eL9QjNiN/DMA2s=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.5.2 h1:xuMeJ0Sdp5ZMRXx/aWO6RZxdr3beISkG5/G/aIRr3pY=
+github.com/stretchr/objx v0.5.2/go.mod h1:FRsXN1f5AsAjCGJKqEizvkpNtU+EGNCLh3NxZ/8L+MA=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=