Function resolveTargetZoneForExpand

public/js/dragAndDrop.js:647–675

(cardId)

}

function resolveTargetZoneForExpand(cardId) {
  const layout   = readLayout();
  const saved    = layout[cardId];
  const isUpload = (cardId === 'uploadCard');

  // 🔒 If the user explicitly pinned this card to the HEADER,
  // it should remain a header-only icon and NEVER fly out.
  if (saved === ZONES.HEADER) {
    return null; // caller will skip animation + placement
  }

  let zone = saved || null;

  // No saved zone yet: mirror applyUserLayoutOrDefault defaults
  if (!zone) {
    if (isSmallScreen()) {
      zone = isUpload ? ZONES.TOP_LEFT : ZONES.TOP_RIGHT;
    } else {
      zone = ZONES.SIDEBAR;
    }
  }

  // On small screens, anything targeting SIDEBAR gets lifted into the top cols
  if (isSmallScreen() && zone === ZONES.SIDEBAR) {
    zone = isUpload ? ZONES.TOP_LEFT : ZONES.TOP_RIGHT;
  }

  return zone;
}

function getZoneHost(zoneId) {
  switch (zoneId) {