fix(server/v2/comebft): wire missing services + fix simulation (#21964)

(cherry picked from commit d697a3d)

# Conflicts:
#	server/v2/api/grpc/server.go
#	server/v2/cometbft/go.mod
#	server/v2/go.mod
#	server/v2/stf/branch/mergeiter.go

client/grpc/cmtservice/service.go

@@ -38,12 +38,12 @@ type (
 
 // NewQueryServer creates a new CometBFT query server.
 func NewQueryServer(
-	clientCtx CometRPC,
+	cometRPC CometRPC,
 	queryFn abciQueryFn,
 	consensusAddressCodec address.Codec,
 ) ServiceServer {
 	return queryServer{
-		rpc:            clientCtx,
+		rpc:            cometRPC,
 		queryFn:        queryFn,
 		consensusCodec: consensusAddressCodec,
 	}
@@ -284,7 +284,7 @@ func (s queryServer) ABCIQuery(ctx context.Context, req *ABCIQueryRequest) (*ABC
 func RegisterTendermintService(
 	clientCtx client.Context,
 	server gogogrpc.Server,
-	iRegistry codectypes.InterfaceRegistry,
+	_ codectypes.InterfaceRegistry,
 	queryFn abciQueryFn,
 ) {
 	node, err := clientCtx.GetNode()

proto/cosmos/base/node/v2/query.proto

@@ -0,0 +1,22 @@
+syntax = "proto3";
+package cosmos.base.node.v2;
+
+import "google/api/annotations.proto";
+
+option go_package = "cosmossdk.io/server/v2/api/grpc/nodeservice";
+
+// Service defines the gRPC querier service for node related queries.
+service Service {
+  // Config queries for the operator configuration.
+  rpc Config(ConfigRequest) returns (ConfigResponse) {
+    option (google.api.http).get = "/cosmos/base/node/v2/config";
+  }
+}
+
+// ConfigRequest defines the request structure for the Config gRPC query.
+message ConfigRequest {}
+
+// ConfigResponse defines the response structure for the Config gRPC query.
+message ConfigResponse {
+  string minimum_gas_price = 1;
+}