🎨 Use feature based folder structure

lib/sites/sites_widgets/site_detail_content.dart

@@ -0,0 +1,45 @@
+import 'package:flutter/material.dart';
+import 'package:gap/gap.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:island/creators/creators/sites/site_detail.dart';
+import 'package:island/creators/publication_site.dart';
+import 'package:island/shared/widgets/extended_refresh_indicator.dart';
+import 'package:island/sites/sites_widgets/file_management_action_section.dart';
+import 'package:island/sites/sites_widgets/file_management_section.dart';
+import 'package:island/sites/sites_widgets/pages_section.dart';
+import 'package:island/sites/sites_widgets/site_info_card.dart';
+
+class SiteDetailContent extends HookConsumerWidget {
+  final SnPublicationSite site;
+  final String pubName;
+
+  const SiteDetailContent({
+    super.key,
+    required this.site,
+    required this.pubName,
+  });
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    return ExtendedRefreshIndicator(
+      onRefresh: () async =>
+          ref.invalidate(publicationSiteDetailProvider(pubName, site.slug)),
+      child: SingleChildScrollView(
+        padding: const EdgeInsets.all(16),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            // Site Info Card
+            SiteInfoCard(site: site),
+            const Gap(8),
+            if (site.mode == 1) // Self-Managed only
+              FileManagementActionSection(site: site, pubName: pubName),
+            // Pages Section
+            PagesSection(site: site, pubName: pubName),
+            FileManagementSection(site: site, pubName: pubName),
+          ],
+        ),
+      ),
+    );
+  }
+}