Fix sale-banner slot, mobile width, and product card height

- Pull the special-discount carousel's banner out of the swiper into a
  fixed sidebar (no longer scrolls with the product slides) and drop
  carousel looping
- Wire it to a new sale-banner static-image slot
- Fix an invalid xs: breakpoint that was silently keeping the banner
  at its smallest width on all phone sizes
- Tighten ProductCard's title height to match 2 lines of text instead
  of reserving extra space, and drop a redundant top margin on the
  price row that was inflating card height

src/app/meshkee/static-image-slots/route.ts

@@ -52,6 +52,15 @@ export async function GET() {
         itemCount: 3,
         recommendedWidth: 520,
       },
+      {
+        key: "sale-banner",
+        label: "بنر ثابت کروسل تخفیف‌های ویژه",
+        kind: "single",
+        pageKey: "home",
+        aspectRatio: "4:5",
+        itemCount: 1,
+        recommendedWidth: 480,
+      },
     ],
   });
 }

src/app/page.tsx

@@ -77,7 +77,7 @@ export default async function Home() {
   return (
     <main>
       <HeroSlider slot={findSlot(slots, "slider")} />
-      <SpecialSaleCarousel items={specialItems} />
+      <SpecialSaleCarousel items={specialItems} bannerSlot={findSlot(slots, "sale-banner")} />
       <ThreeBanners slot={findSlot(slots, "three-banner-row")} />
       <TwoBanners slot={findSlot(slots, "two-banner-row")} />
       <TopSellingCarousel items={topSellingItems} />

src/components/SpecialSaleCarousel.tsx

@@ -4,13 +4,27 @@ import Link from "next/link";
 import { Swiper, SwiperSlide } from "swiper/react";
 import { Autoplay, Navigation } from "swiper/modules";
 import "swiper/css";
-import type { SpecialCarouselItem } from "@/lib/types";
+import type { SpecialCarouselItem, StaticImageSlot } from "@/lib/types";
+import { toCssAspectRatio } from "@/lib/format";
 import ProductCard from "./ui/ProductCard";
 import { ChevronLeftIcon, ChevronRightIcon } from "./icons";
 
-export default function SpecialSaleCarousel({ items }: { items: SpecialCarouselItem[] }) {
+export default function SpecialSaleCarousel({
+  items,
+  bannerSlot,
+}: {
+  items: SpecialCarouselItem[];
+  bannerSlot?: StaticImageSlot;
+}) {
   if (items.length === 0) return null;
 
+  const bannerImage = bannerSlot?.images[0];
+  const cssAspectRatio = toCssAspectRatio(bannerSlot?.aspectRatio);
+  const bannerAspectStyle = cssAspectRatio ? { aspectRatio: cssAspectRatio } : undefined;
+  const bannerSrc = bannerImage?.url ?? "/images/special-sale/banner.svg";
+  const bannerHref = bannerImage?.linkUrl;
+  const BannerWrapper = bannerHref ? "a" : "div";
+
   return (
     <section id="special-sale" className="boxed py-10 md:py-14">
       <div className="flex items-center justify-between mb-6 md:mb-8">
@@ -32,51 +46,58 @@ export default function SpecialSaleCarousel({ items }: { items: SpecialCarouselI
         </Link>
       </div>
 
-      <div className="relative bg-brand rounded-2xl md:rounded-3xl p-4 md:p-8">
-        <Swiper
-          modules={[Autoplay, Navigation]}
-          autoplay={{ delay: 3200, disableOnInteraction: false }}
-          navigation={{
-            prevEl: ".sale-prev",
-            nextEl: ".sale-next",
-          }}
-          loop={items.length > 5}
-          spaceBetween={14}
-          slidesPerView={1.8}
-          breakpoints={{
-            480: { slidesPerView: 2.2 },
-            640: { slidesPerView: 3 },
-            1024: { slidesPerView: 4.5, spaceBetween: 20 },
-          }}
+      <div className="bg-brand rounded-2xl md:rounded-3xl p-4 md:p-8 flex gap-4 md:gap-6">
+        {/* Fixed on the right — stays put while the products scroll beside it. */}
+        <BannerWrapper
+          {...(bannerHref ? { href: bannerHref } : {})}
+          className="shrink-0 block w-32 sm:w-40 md:w-56 overflow-hidden rounded-lg"
         >
-          <SwiperSlide>
-            <img
-              src="/images/special-sale/banner.svg"
-              alt=""
-              className="w-full h-full aspect-[4/5] object-cover rounded-lg"
-            />
-          </SwiperSlide>
-          {items.map(({ product, discount }) => (
-            <SwiperSlide key={product.id}>
-              <ProductCard product={product} discount={discount} />
-            </SwiperSlide>
-          ))}
-        </Swiper>
+          <img
+            src={bannerSrc}
+            alt=""
+            style={bannerAspectStyle}
+            className={`w-full h-full object-cover ${bannerAspectStyle ? "" : "aspect-[4/5]"}`}
+          />
+        </BannerWrapper>
 
-        <button
-          type="button"
-          aria-label="اسلاید قبلی"
-          className="sale-prev hidden sm:flex absolute top-1/2 -translate-y-1/2 start-0 z-10 translate-x-1/2 items-center justify-center size-10 md:size-11 rounded-full bg-white text-brand shadow-md hover:bg-gold hover:text-ink transition-colors"
-        >
-          <ChevronRightIcon className="size-5" />
-        </button>
-        <button
-          type="button"
-          aria-label="اسلاید بعدی"
-          className="sale-next hidden sm:flex absolute top-1/2 -translate-y-1/2 end-0 z-10 -translate-x-1/2 items-center justify-center size-10 md:size-11 rounded-full bg-white text-brand shadow-md hover:bg-gold hover:text-ink transition-colors"
-        >
-          <ChevronLeftIcon className="size-5" />
-        </button>
+        <div className="relative flex-1 min-w-0">
+          <Swiper
+            modules={[Autoplay, Navigation]}
+            autoplay={{ delay: 3200, disableOnInteraction: false }}
+            navigation={{
+              prevEl: ".sale-prev",
+              nextEl: ".sale-next",
+            }}
+            spaceBetween={14}
+            slidesPerView={1.4}
+            breakpoints={{
+              480: { slidesPerView: 1.8 },
+              640: { slidesPerView: 2.4 },
+              1024: { slidesPerView: 3.5, spaceBetween: 20 },
+            }}
+          >
+            {items.map(({ product, discount }) => (
+              <SwiperSlide key={product.id}>
+                <ProductCard product={product} discount={discount} />
+              </SwiperSlide>
+            ))}
+          </Swiper>
+
+          <button
+            type="button"
+            aria-label="اسلاید قبلی"
+            className="sale-prev hidden sm:flex absolute top-1/2 -translate-y-1/2 start-0 z-10 translate-x-1/2 items-center justify-center size-10 md:size-11 rounded-full bg-white text-brand shadow-md hover:bg-gold hover:text-ink transition-colors"
+          >
+            <ChevronRightIcon className="size-5" />
+          </button>
+          <button
+            type="button"
+            aria-label="اسلاید بعدی"
+            className="sale-next hidden sm:flex absolute top-1/2 -translate-y-1/2 end-0 z-10 -translate-x-1/2 items-center justify-center size-10 md:size-11 rounded-full bg-white text-brand shadow-md hover:bg-gold hover:text-ink transition-colors"
+          >
+            <ChevronLeftIcon className="size-5" />
+          </button>
+        </div>
       </div>
     </section>
   );

src/components/ui/ProductCard.tsx

@@ -48,7 +48,7 @@ export default function ProductCard({
       <div className="flex flex-1 flex-col p-3.5">
         {/* Fixed height regardless of 1 or 2 lines, so card heights stay
             consistent across a row of mixed-length titles. */}
-        <h3 className="h-10 md:h-11 leading-tight text-[13px] md:text-sm text-ink text-right line-clamp-2">
+        <h3 className="h-9 md:h-10 leading-tight text-[13px] md:text-sm text-ink text-right line-clamp-2">
           {title}
         </h3>
 
@@ -69,7 +69,7 @@ export default function ProductCard({
           )}
         </div>
 
-        <div className="mt-2 flex items-center justify-between gap-2">
+        <div className="flex items-center justify-between gap-2">
           <span className="font-bold text-sm md:text-[15px] text-brand truncate">
             {price != null ? formatToman(price) : "تماس بگیرید"}
           </span>