Fix product stock, booking actions, settings, reservation UX, nav and category filter

app/reservation/page.tsx

@@ -81,6 +81,15 @@ export default function Booking() {
     }
   };
 
+  const resetBooking = () => {
+    setConfirmed(false);
+    setSelectedService(null);
+    setSelectedDate(undefined);
+    setSelectedSlot(null);
+    setSlots([]);
+    setPhone(user?.phone ?? "");
+  };
+
   if (confirmed) {
     return (
       <div className="min-h-screen flex items-center justify-center py-12 px-4">
@@ -92,9 +101,12 @@ export default function Booking() {
           <p className="text-muted-foreground mb-2">
             {selectedService?.name} — {selectedDate?.toLocaleDateString(locale)} {t("booking.confirmed_at")} {selectedSlot?.start_time.slice(0, 5)}
           </p>
-          <p className="text-sm text-muted-foreground">
+          <p className="text-sm text-muted-foreground mb-6">
             {t("booking.confirmed_desc")}
           </p>
+          <Button variant="outline" onClick={resetBooking}>
+            {t("booking.new_booking")}
+          </Button>
         </div>
       </div>
     );