doSend function

async function doSend(
  message: import("@/types").ExtensionMessage,
  btn: HTMLButtonElement,
  originalText: string,
): Promise<void> {
  btn.disabled = true;
  try {
    const result = await sendToActiveTab(message);
    const res = result as { filled?: number } | null;
    const count = res?.filled ?? 0;
    showStatus(`✓ ${count} ${t("filled")}`);
  } catch (err) {
    log.warn("Failed to send message:", err);
    showStatus(t("error"), true);
  } finally {
    btn.disabled = false;
    btn.textContent = originalText;
  }
}