handleIconClick function

async function handleIconClick(e: Event): Promise<void> {
  e.preventDefault();
  e.stopPropagation();

  if (!currentTarget) return;

  const el = currentTarget as
    | HTMLInputElement
    | HTMLSelectElement
    | HTMLTextAreaElement;

  const field: FormField = {
    element: el,
    selector: getUniqueSelector(el),
    category: "unknown",
    fieldType: "unknown",
    label: findLabel(el),
    name: el.name || undefined,
    id: el.id || undefined,
    placeholder:
      ("placeholder" in el ? el.placeholder : undefined) || undefined,
    autocomplete: el.autocomplete || undefined,
    required: el.required,
  };

  field.contextSignals = buildSignals(field);
  const pipelineResult = await DEFAULT_PIPELINE.runAsync(field);
  field.fieldType = pipelineResult.type;
  field.detectionMethod = pipelineResult.method;
  field.detectionConfidence = pipelineResult.confidence;

  const btn = iconElement?.querySelector(
    "#fill-all-field-icon-btn",
  ) as HTMLElement;
  if (btn) btn.classList.add("loading");

  await fillSingleField(field);

  if (btn) btn.classList.remove("loading");
  el.focus();
}