[#1386] frostfs-adm: Add info to error messages

These error messages bubble up to human users - adding more context helps
to find the cause of the issue faster.

Signed-off-by: Vitaliy Potyarkin <v.potyarkin@yadro.com>

cmd/frostfs-adm/internal/modules/morph/initialize/initialize_roles.go

@@ -1,6 +1,8 @@
 package initialize
 
 import (
+	"fmt"
+
 	"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-adm/internal/modules/morph/helper"
 	"github.com/nspcc-dev/neo-go/pkg/core/native/noderoles"
 	"github.com/nspcc-dev/neo-go/pkg/io"
@@ -29,10 +31,14 @@ func setNotaryAndAlphabetNodes(c *helper.InitializeContext) error {
 		callflag.States|callflag.AllowNotify, int64(noderoles.NeoFSAlphabet), pubs)
 
 	if err := c.SendCommitteeTx(w.Bytes(), false); err != nil {
-		return err
+		return fmt.Errorf("committee transaction: %w", err)
 	}
 
-	return c.AwaitTx()
+	err := c.AwaitTx()
+	if err != nil {
+		err = fmt.Errorf("committee transaction: %w", err)
+	}
+	return err
 }
 
 func setRolesFinished(c *helper.InitializeContext) (bool, error) {

cmd/frostfs-adm/internal/modules/morph/initialize/initialize_transfer.go

@@ -3,6 +3,7 @@ package initialize
 import (
 	"fmt"
 	"math/big"
+	"strings"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-adm/internal/modules/morph/constants"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-adm/internal/modules/morph/helper"
@@ -144,5 +145,17 @@ func createNEP17MultiTransferTx(c helper.Client, acc *wallet.Account, recipients
 	if err != nil {
 		return nil, fmt.Errorf("can't create actor: %w", err)
 	}
-	return act.MakeRun(w.Bytes())
+	tx, err := act.MakeRun(w.Bytes())
+	if err != nil {
+		sum := make(map[util.Uint160]int64)
+		for _, recipient := range recipients {
+			sum[recipient.Token] += recipient.Amount
+		}
+		detail := make([]string, 0, len(sum))
+		for _, value := range sum {
+			detail = append(detail, fmt.Sprintf("amount=%v", value))
+		}
+		err = fmt.Errorf("transfer failed: from=%s(%s) %s: %w", acc.Label, acc.Address, strings.Join(detail, " "), err)
+	}
+	return tx, err
 }