elevate: show key comment instead of fingerprint in notifications

pkg/elevate/sshagent.go

@@ -121,6 +121,17 @@ func (a *approvalAgent) SignWithFlags(key ssh.PublicKey, data []byte, flags agen
 func (a *approvalAgent) signWithApproval(key ssh.PublicKey, data []byte, flags agent.SignatureFlags) (*ssh.Signature, error) {
 	fp := ssh.FingerprintSHA256(key)
 
+	// Try to get key comment for readable display
+	comment := ""
+	if keys, err := a.upstream.List(); err == nil {
+		for _, k := range keys {
+			if ssh.FingerprintSHA256(k) == fp {
+				comment = k.Comment
+				break
+			}
+		}
+	}
+
 	// Check policy
 	effective := a.broker.SessionPolicy("")
 	if effective.Matches("", fp) {
@@ -132,9 +143,14 @@ func (a *approvalAgent) signWithApproval(key ssh.PublicKey, data []byte, flags a
 	}
 
 	// Create pending request for approval
+	label := comment
+	if label == "" {
+		label = fp
+	}
+
 	req := &Request{
 		ID:        nextRequestID(),
-		Cmd:       fmt.Sprintf("ssh-sign: %s", fp),
+		Cmd:       fmt.Sprintf("ssh-sign: %s", label),
 		Cwd:       "",
 		SessionID: "",
 		CreatedAt: timeNow(),