POS nav + cards — pointer cursor on hover (local)

2/2 local test PASS. nix-cafe typechecks clean. No migration. 2 files.

Sidebar "Point of Sale" group — cursor-pointer added to the NavGroupItem <button> base className in sidebar.tsx. Hovering the expandable group row now shows the hand cursor (the child links were already anchors → fine).
POS card CTA — cursor-pointer added to the CTA <button> in pos-landing.tsx. Hovering "Open Register" / "Continue Selling" now shows the hand cursor.
Both classes are static literals (unconditional), so this is a structural source assertion + typecheck — the visual pass is Gate 2 on prod.

Local test — 2/2

✓ Sidebar 'Point of Sale' group button (NavGroupItem) has cursor-pointer
✓ POS card CTA button (Open Register / Continue Selling) has cursor-pointer

Files — 2 touched, no migration

edited:
  components/layout/sidebar.tsx        + cursor-pointer on the NavGroupItem button
  app/(authed)/pos/pos-landing.tsx     + cursor-pointer on the RegisterCard CTA button