extractValue method infrastructure ✓ 100.0%

  extractValue(wrapper: HTMLElement): string | null {
    // prefer displayed selection(s)
    const items = wrapper.querySelectorAll<HTMLElement>(
      ".ant-select-selection-item, .ant-select-selection-item-content",
    );
    if (items.length > 0) {
      return Array.from(items)
        .map((i) => i.textContent?.trim() ?? "")
        .filter((t) => t)
        .join(",");
    }

    // fall back to combobox input value
    const input = wrapper.querySelector<HTMLInputElement>(
      "input[role='combobox'], .ant-select-selection-search-input, .ant-select-input",
    );
    if (input) return input.value;
    return null;
  },