feature/1110 abstract connected wallet operations (#1166)

- **refactor: refactor DID module types and move to controller package**
- **refactor: move controller creation and resolution logic to keeper**
- **refactor: update imports to reflect controller package move**
- **refactor: update protobuf definitions for DID module**
- **docs: update proto README to reflect changes**
- **refactor: move hway to gateway, update node modules, and refactor
pkl generation**
- **build: update pkl-gen task to use new pkl file paths**
- **refactor: refactor DWN WASM build and deployment process**
- **refactor: refactor DID controller implementation to use
account-based storage**
- **refactor: move DID controller interface to base file and update
implementation**
- **chore: migrate to google protobuf**
- **feat: Add v0.52.0 Interfaces for Acc Abstraction**
- **refactor: replace public_key with public_key_hex in Assertion
message**
- **refactor: remove unused PubKey, JSONWebKey, and RawKey message types
and related code**

x/did/controller/signer/signer.go

@@ -0,0 +1,29 @@
+package signer
+
+import (
+	"context"
+
+	signingv1beta1 "cosmossdk.io/api/cosmos/tx/signing/v1beta1"
+	"cosmossdk.io/x/tx/signing"
+	"github.com/cosmos/cosmos-sdk/types/tx"
+)
+
+type directHandler struct{}
+
+func (s directHandler) Mode() signingv1beta1.SignMode {
+	return signingv1beta1.SignMode_SIGN_MODE_DIRECT_AUX
+}
+
+func (s directHandler) GetSignBytes(
+	_ context.Context,
+	signerData signing.SignerData,
+	txData signing.TxData,
+) ([]byte, error) {
+	txDoc := tx.SignDoc{
+		BodyBytes:     txData.BodyBytes,
+		AuthInfoBytes: txData.AuthInfoBytes,
+		ChainId:       signerData.ChainID,
+		AccountNumber: signerData.AccountNumber,
+	}
+	return txDoc.Marshal()
+}