Add guest cart drawer, Continue handoff, and shared customer login.

Co-authored-by: Cursor <cursoragent@cursor.com>

components/AppProviders.tsx

@@ -0,0 +1,18 @@
+"use client";
+
+import { CartProvider } from "@/lib/cart";
+import { SessionProvider } from "@/lib/session";
+
+export function AppProviders({
+  children,
+  businessId,
+}: {
+  children: React.ReactNode;
+  businessId: string;
+}) {
+  return (
+    <SessionProvider businessId={businessId}>
+      <CartProvider>{children}</CartProvider>
+    </SessionProvider>
+  );
+}