feat(tutorials): add video training academy management with YouTube parser and live preview

app/[locale]/admin/tutorials/page.tsx

@@ -0,0 +1,29 @@
+import { supabaseAdmin } from '@/lib/supabaseAdmin'
+import { TutorialsClient, TutorialItem } from './TutorialsClient'
+
+export const dynamic = 'force-dynamic'
+
+export default async function AdminTutorialsPage() {
+  const { data: tutorials, error } = await supabaseAdmin
+    .from('tutorials')
+    .select('*')
+    .order('sort_order', { ascending: true })
+
+  const items: TutorialItem[] = (tutorials || []).map((t: any) => ({
+    id: t.id,
+    title: t.title,
+    description: t.description || '',
+    category: t.category || 'basics',
+    category_label: t.category_label || '🚀 Hızlı Başlangıç',
+    duration: t.duration || '03:00',
+    youtube_id: t.youtube_id,
+    target_view: t.target_view,
+    target_view_label: t.target_view_label,
+    highlights: Array.isArray(t.highlights) ? t.highlights : [],
+    sort_order: t.sort_order || 0,
+    is_active: t.is_active !== false,
+    created_at: t.created_at,
+  }))
+
+  return <TutorialsClient initialTutorials={items} />
+}