feat: add SmartAccount to provide better support for AA

Makefile

@@ -5,10 +5,10 @@ generate-contracts:
 	cd scripts/generate-contracts && ./execute.sh && cd ../..
 
 run-tests-on-eth-based-chain:
-	go test -v -skip='^.*_NonEthBasedChain_.*$\' ./test ./utils
+	go test -v -skip='^.*_NonEthBasedChain_.*$\' ./test  ./accounts ./utils
 
 run-tests-on-non-eth-based-chain:
-	go test -v -skip='^.*_EthBasedChain_.*$\'  ./test ./utils
+	go test -v -skip='^.*_EthBasedChain_.*$\'  ./test ./accounts ./utils
 
 check-format:
 	cd scripts/ && ./check-format.sh && cd ../..

accounts/signer.go

@@ -134,6 +134,8 @@ func (s *BaseSigner) SignTypedData(domain *eip712.Domain, data eip712.TypedData)
 	if err != nil {
 		return nil, fmt.Errorf("failed to sign hash of typed data: %w", err)
 	}
+	// crypto.Sign uses the traditional implementation where v is either 0 or 1,
+	// while Ethereum uses newer implementation where v is either 27 or 28.
 	if sig[64] < 27 {
 		sig[64] += 27
 	}