Add delete room button in RoomModal

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/pages/RoomsPage.tsx

@@ -64,6 +64,17 @@ export function RoomsPage() {
 
   const [saveError, setSaveError] = useState<string | null>(null)
 
+  const handleDelete = async (roomId: string) => {
+    try {
+      await api.rooms.delete(slug, roomId)
+      setRooms(prev => prev.filter(r => r.id !== roomId))
+      setModalOpen(false)
+    } catch (err) {
+      const msg = err instanceof Error ? err.message : 'Ошибка удаления'
+      setSaveError(msg)
+    }
+  }
+
   const handleSave = async (room: Room) => {
     setSaveError(null)
     try {