perf: optimize home screen rendering with ListView.builder and improve image loading performance by persisting disk cache

lib/features/home/presentation/screens/home_screen.dart

@@ -21,31 +21,25 @@ class HomeScreen extends ConsumerWidget {
   @override
   Widget build(BuildContext context, WidgetRef ref) {
     final scrollController = ref.watch(homeScrollControllerProvider);
-    return SingleChildScrollView(
+    // Use ListView.builder for lazy rendering — only builds sections as
+    // they scroll into view, instead of rendering all 5 heavy sections at
+    // once in a Column (which causes jank on initial load).
+    final sections = <Widget>[
+      const RepaintBoundary(child: HeroSection()),
+      const SizedBox(height: 40),
+      const RepaintBoundary(child: FeaturesSection()),
+      const SizedBox(height: 40),
+      const RepaintBoundary(child: TopProfessionalsSection()),
+      const SizedBox(height: 40),
+      const RepaintBoundary(child: TrustStatsSection()),
+      const SizedBox(height: 24),
+      const RepaintBoundary(child: TestimonialsSection()),
+      const SizedBox(height: 40),
+    ];
+    return ListView.builder(
       controller: scrollController,
-      child: Column(
-        children: [
-          // Hero Section with Search
-          const HeroSection(),
-          const SizedBox(height: 40),
-
-          // Features Section
-          const FeaturesSection(),
-          const SizedBox(height: 40),
-
-          // Top Professionals Section (Agents/Lenders tabs)
-          const TopProfessionalsSection(),
-          const SizedBox(height: 40),
-
-          // Trust & Stats Section
-          const TrustStatsSection(),
-          const SizedBox(height: 24),
-
-          // Testimonials Section
-          const TestimonialsSection(),
-          const SizedBox(height: 40),
-        ],
-      ),
+      itemCount: sections.length,
+      itemBuilder: (_, i) => sections[i],
     );
   }