Replace home hero with animated EHSAN banner carousel

Task #6: On artifacts/ehsan-poc home page, replaced the green text hero
with an auto-rotating, looping carousel of the four official ehsan.sa
banner images (Zakat, recurring/dawri, Waqf, gift) imported via @assets.

- Auto-advances every 5s, loops, and respects prefers-reduced-motion.
- Clickable dot indicators plus an accessible pause/play toggle (WCAG
  2.2.2) on a translucent backdrop pill.
- Bottom gradient scrim keeps the white CTA + controls readable on all
  four banner backgrounds.
- Removed the overlay heading, subtitle, and the "طلب دعم" button per the
  user; kept the "تصفّح الفرص" CTA linking to /opportunities.
- Added common.pause / common.play i18n keys (AR + EN) for the toggle.

Banners use alt="" (decorative) since the functional CTA is separately
labeled. Verified with tsc --noEmit and home-page screenshots (RTL).

artifacts/ehsan-poc/src/pages/home.tsx

@@ -1,4 +1,4 @@
-import { useState } from "react";
+import { useState, useEffect } from "react";
 import { useLanguage } from "../contexts/LanguageContext";
 import { useGetStats, useListPublishedRequests } from "@workspace/api-client-react";
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
@@ -8,13 +8,30 @@ import { Skeleton } from "@/components/ui/skeleton";
 import { OpportunityCard } from "../components/OpportunityCard";
 import { Riyal } from "@/components/Riyal";
 import { Link } from "wouter";
-import { Search } from "lucide-react";
+import { Search, Pause, Play } from "lucide-react";
+import zakatBanner from "@assets/zakatbanarWEB_1780682994527.png";
+import dawriBanner from "@assets/dawribanarWEB_1780682998494.png";
+import waqfBanner from "@assets/waqfbanerWEB_1780683002610.png";
+import giftBanner from "@assets/giftbanarWEB_1780683006569.png";
+
+const HERO_BANNERS = [zakatBanner, dawriBanner, waqfBanner, giftBanner];
 
 export default function Home() {
   const { t } = useLanguage();
   const { data: stats, isLoading: statsLoading } = useGetStats();
   const { data: published, isLoading: pubLoading } = useListPublishedRequests();
   const [query, setQuery] = useState("");
+  const [slide, setSlide] = useState(0);
+  const [paused, setPaused] = useState(false);
+
+  useEffect(() => {
+    const reduce = window.matchMedia?.("(prefers-reduced-motion: reduce)").matches;
+    if (reduce || paused) return;
+    const id = setInterval(() => {
+      setSlide((s) => (s + 1) % HERO_BANNERS.length);
+    }, 5000);
+    return () => clearInterval(id);
+  }, [paused]);
 
   const filtered = (published || []).filter((r) => {
     if (!query.trim()) return true;
@@ -28,64 +45,66 @@ export default function Home() {
 
   return (
     <>
-      {/* Hero — official EHSAN green banner */}
-      <section className="relative overflow-hidden bg-primary text-primary-foreground">
-        <div
-          className="absolute inset-0 opacity-25"
-          style={{
-            background:
-              "radial-gradient(circle at 85% 20%, rgba(255,255,255,0.18) 0, transparent 45%), radial-gradient(circle at 10% 90%, rgba(0,0,0,0.18) 0, transparent 50%)",
-          }}
-        />
-        {/* decorative leaves (visual only) */}
-        <svg
-          className="pointer-events-none absolute -bottom-10 start-0 h-56 w-56 text-white/10"
-          viewBox="0 0 200 200"
-          fill="currentColor"
-          aria-hidden="true"
-        >
-          <path d="M100 10C60 40 40 90 60 140c30-20 60-50 80-100C120 60 100 90 90 120c-5-40 0-80 10-110z" />
-        </svg>
-        <svg
-          className="pointer-events-none absolute -top-12 end-8 h-72 w-72 text-white/10 rotate-180"
-          viewBox="0 0 200 200"
-          fill="currentColor"
-          aria-hidden="true"
-        >
-          <path d="M100 10C60 40 40 90 60 140c30-20 60-50 80-100C120 60 100 90 90 120c-5-40 0-80 10-110z" />
-        </svg>
+      {/* Hero — auto-rotating banner carousel */}
+      <section
+        className="relative w-full overflow-hidden bg-muted"
+        aria-roledescription="carousel"
+        aria-label={t.home.heroBrowse}
+      >
+        <div className="relative h-[220px] sm:h-[320px] md:h-[420px] lg:h-[480px]">
+          {HERO_BANNERS.map((src, i) => (
+            <img
+              key={i}
+              src={src}
+              alt=""
+              aria-hidden="true"
+              loading={i === 0 ? "eager" : "lazy"}
+              className={`absolute inset-0 h-full w-full object-cover transition-opacity duration-700 ease-in-out ${
+                i === slide ? "opacity-100" : "opacity-0"
+              }`}
+            />
+          ))}
 
-        <div className="container mx-auto px-4 py-20 md:py-24 relative">
-          <div className="max-w-2xl">
-            <span className="inline-block rounded-full bg-white/15 px-4 py-1 text-sm font-medium mb-5">
-              {t.home.heroBadge}
-            </span>
-            <h1 className="text-3xl md:text-5xl font-bold leading-tight mb-5">
-              {t.home.heroTitle}
-            </h1>
-            <p className="text-lg md:text-xl text-primary-foreground/90 mb-8 leading-relaxed">
-              {t.home.heroSubtitle}
-            </p>
-            <div className="flex flex-wrap gap-3">
-              <Link href="/opportunities">
-                <Button
-                  size="lg"
-                  className="bg-white text-primary hover:bg-white/90 font-bold px-7"
-                  data-testid="button-heroBrowse"
-                >
-                  {t.home.heroBrowse}
-                </Button>
-              </Link>
-              <Link href="/request">
-                <Button
-                  size="lg"
-                  variant="outline"
-                  className="border-white/70 bg-transparent text-white hover:bg-white/10 font-bold px-7"
-                  data-testid="button-heroRequest"
-                >
-                  {t.nav.requestSupport}
-                </Button>
-              </Link>
+          {/* bottom scrim keeps the CTA + dots readable over any banner */}
+          <div className="pointer-events-none absolute inset-x-0 bottom-0 h-1/3 bg-gradient-to-t from-black/45 to-transparent" />
+
+          <div className="absolute inset-x-0 bottom-0 flex items-end justify-between gap-4 p-4 md:p-8">
+            <Link href="/opportunities" className="pointer-events-auto">
+              <Button
+                size="lg"
+                className="bg-white text-primary hover:bg-white/90 font-bold px-7 shadow-lg"
+                data-testid="button-heroBrowse"
+              >
+                {t.home.heroBrowse}
+              </Button>
+            </Link>
+
+            <div className="pointer-events-auto flex items-center gap-3 rounded-full bg-black/25 px-3 py-2 backdrop-blur-sm">
+              <button
+                type="button"
+                onClick={() => setPaused((p) => !p)}
+                aria-label={paused ? t.common.play : t.common.pause}
+                aria-pressed={paused}
+                data-testid="button-hero-toggle"
+                className="flex h-5 w-5 items-center justify-center text-white/90 transition-colors hover:text-white"
+              >
+                {paused ? <Play className="h-3.5 w-3.5" /> : <Pause className="h-3.5 w-3.5" />}
+              </button>
+              <div className="flex items-center gap-2">
+                {HERO_BANNERS.map((_, i) => (
+                  <button
+                    key={i}
+                    type="button"
+                    onClick={() => setSlide(i)}
+                    aria-label={`${t.home.heroBrowse} ${i + 1}`}
+                    aria-current={i === slide}
+                    data-testid={`dot-hero-${i}`}
+                    className={`h-2.5 rounded-full transition-all duration-300 ${
+                      i === slide ? "w-7 bg-white" : "w-2.5 bg-white/50 hover:bg-white/80"
+                    }`}
+                  />
+                ))}
+              </div>
             </div>
           </div>
         </div>