feat: establish reservation portal foundation

resources/js/hooks/use-mobile.tsx

@@ -0,0 +1,36 @@
+import { useSyncExternalStore } from 'react';
+
+const MOBILE_BREAKPOINT = 768;
+
+const mql =
+    typeof window === 'undefined'
+        ? undefined
+        : window.matchMedia(`(max-width: ${MOBILE_BREAKPOINT - 1}px)`);
+
+function mediaQueryListener(callback: (event: MediaQueryListEvent) => void) {
+    if (!mql) {
+        return () => {};
+    }
+
+    mql.addEventListener('change', callback);
+
+    return () => {
+        mql.removeEventListener('change', callback);
+    };
+}
+
+function isSmallerThanBreakpoint(): boolean {
+    return mql?.matches ?? false;
+}
+
+function getServerSnapshot(): boolean {
+    return false;
+}
+
+export function useIsMobile(): boolean {
+    return useSyncExternalStore(
+        mediaQueryListener,
+        isSmallerThanBreakpoint,
+        getServerSnapshot,
+    );
+}