Spec: Custom Variation Swatches & AJAX Threshold Bypass for 50+ Variations

<?php
declare(strict_types=1);

add_action('pa_color_add_form_fields', function () {
    ?>
    <div class="form-field">
        <label for="term_color"><?php esc_html_e('Цвет плашки (HEX)', 'agenticlab'); ?></label>
        <input type="text" name="term_color" id="term_color" class="agenticlab-color-picker" value="#ffffff" />
    </div>
    <?php
});

add_action('pa_color_edit_form_fields', function ($term) {
    $color = get_term_meta($term->term_id, 'term_color', true) ?: '#ffffff';
    ?>
    <tr class="form-field">
        <th scope="row"><label for="term_color"><?php esc_html_e('Цвет плашки (HEX)', 'agenticlab'); ?></label></th>
        <td>
            <input type="text" name="term_color" id="term_color" class="agenticlab-color-picker" value="<?php echo esc_attr($color); ?>" />
        </td>
    </tr>
    <?php
});

add_action('admin_enqueue_scripts', function ($hook) {
    if (in_array($hook, ['edit-tags.php', 'term.php'], true)) {
        wp_enqueue_style('wp-color-picker');
        wp_enqueue_script('wp-color-picker');
        wp_add_inline_script('wp-color-picker', 'jQuery(document).ready(function($){ $(".agenticlab-color-picker").wpColorPicker(); });');
    }
});

add_action('saved_pa_color', function ($term_id) {
    if (isset($_POST['term_color'])) {
        update_term_meta($term_id, 'term_color', sanitize_hex_color($_POST['term_color']));
    }
});