clef: documentation generator + docs (#19020)

* clef: implement documentation generation + remove unused struct

* clef: formatting + spelling

* clef: updates to doc

signer/core/api.go

@@ -236,12 +236,6 @@ type (
 	Message struct {
 		Text string `json:"text"`
 	}
-	PasswordRequest struct {
-		Prompt string `json:"prompt"`
-	}
-	PasswordResponse struct {
-		Password string `json:"password"`
-	}
 	StartupInfo struct {
 		Info map[string]interface{} `json:"info"`
 	}

signer/core/signed_data.go

@@ -250,7 +250,7 @@ func (api *SignerAPI) determineSignatureFormat(ctx context.Context, contentType
 				message := []*NameValueType{
 					{
 						Name:  "message",
-						Typ:   "text/plain",
+						Typ:   accounts.MimetypeTextPlain,
 						Value: msg,
 					},
 				}

signer/core/types.go

@@ -75,7 +75,7 @@ type SendTxArgs struct {
 	Nonce    hexutil.Uint64           `json:"nonce"`
 	// We accept "data" and "input" for backwards-compatibility reasons.
 	Data  *hexutil.Bytes `json:"data"`
-	Input *hexutil.Bytes `json:"input"`
+	Input *hexutil.Bytes `json:"input,omitempty"`
 }
 
 func (args SendTxArgs) String() string {

signer/rules/rules_test.go

@@ -83,10 +83,6 @@ func (alwaysDenyUI) RegisterUIServer(api *core.UIServerAPI) {
 func (alwaysDenyUI) OnSignerStartup(info core.StartupInfo) {
 }
 
-func (alwaysDenyUI) OnMasterPassword(request *core.PasswordRequest) (core.PasswordResponse, error) {
-	return core.PasswordResponse{}, nil
-}
-
 func (alwaysDenyUI) ApproveTx(request *core.SignTxRequest) (core.SignTxResponse, error) {
 	return core.SignTxResponse{Transaction: request.Transaction, Approved: false, Password: ""}, nil
 }
@@ -261,10 +257,6 @@ func (d *dummyUI) OnApprovedTx(tx ethapi.SignTransactionResult) {
 	d.calls = append(d.calls, "OnApprovedTx")
 }
 
-func (d *dummyUI) OnMasterPassword(request *core.PasswordRequest) (core.PasswordResponse, error) {
-	return core.PasswordResponse{}, nil
-}
-
 func (d *dummyUI) OnSignerStartup(info core.StartupInfo) {
 }
 
@@ -543,10 +535,6 @@ func (d *dontCallMe) RegisterUIServer(api *core.UIServerAPI) {
 func (d *dontCallMe) OnSignerStartup(info core.StartupInfo) {
 }
 
-func (d *dontCallMe) OnMasterPassword(request *core.PasswordRequest) (core.PasswordResponse, error) {
-	return core.PasswordResponse{}, nil
-}
-
 func (d *dontCallMe) ApproveTx(request *core.SignTxRequest) (core.SignTxResponse, error) {
 	d.t.Fatalf("Did not expect next-handler to be called")
 	return core.SignTxResponse{}, core.ErrRequestDenied