<?php

/**
 * @param mixed $raw
 * @return array<int, array<string, mixed>>
 */
function normalizeExpensesList($raw): array {
    if (!is_array($raw) || !array_is_list($raw)) {
        return [];
    }
    $out = [];
    foreach ($raw as $row) {
        if (is_array($row) && !empty($row['id']) && is_string($row['id'])) {
            $out[] = $row;
        }
    }
    return $out;
}