programming-with-ia

/**
 * Helper function to wait for an element to appear or disappear.
 * @param {string} selector - The CSS selector to query.
 * @param {boolean} [shouldExist=true] - If true, waits for the element to exist. If false, waits for it to not exist.
 * @param {number} [timeout=3000] - Max time to wait in milliseconds.
 * @returns {Promise<Element|null>} A promise that resolves with the element (if found) or null (if timed out or disappearing).
 */
async function waitForElement(selector, shouldExist = true, timeout = 3000) {
  const startTime = Date.now();
  while (Date.now() - startTime < timeout) {