getAccountMetadata method
Get metadata for a specific account.
Parameters:
accountId: Unique identifier for the account
Returns: Map of account metadata
Throws SecureStorageException if the operation fails
Implementation
@override
Future<Map<String, String>> getAccountMetadata(String accountId) {
throw UnimplementedError(
'PostgresSecureStorage does not support account metadata. '
'Use the read model storage for non-sensitive metadata.',
);
}