fixed

repository/permission_repository.go

@@ -105,13 +105,18 @@ func GetUserAttributes(userID string) (map[string]string, error) {
 
 	attributes := make(map[string]string)
 	for rows.Next() {
-		var name, value string
+		var name string
+		var value *string
 		err := rows.Scan(&name, &value)
 		if err != nil {
 			log.Printf("[Repository] ✗ Error scanning user attribute: %v", err)
 			return nil, fmt.Errorf("error scanning user attribute: %w", err)
 		}
-		attributes[name] = value
+		if value != nil {
+			attributes[name] = *value
+		} else {
+			attributes[name] = ""
+		}
 	}
 
 	log.Printf("[Repository] ✓ Retrieved %d user attributes", len(attributes))