feat: скрывать кнопку 'Добавить группу' в режиме SCHED_MODE=kspsuti

- В index.tsx: showAddGroupButton всегда false при SCHED_MODE=kspsuti
- В admin.tsx: скрыта настройка кнопки в админ-панели при isKspsutiMode

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

src/pages/admin.tsx

@@ -522,6 +522,7 @@ export default function AdminPage({ groups: initialGroups, settings: initialSett
                     disabled={loading}
                   />
                 </div>
+                {!isKspsutiMode && (
                   <div className="flex items-center justify-between p-4 border rounded-lg">
                     <div>
                       <div className="font-semibold">Кнопка "Добавить группу"</div>
@@ -535,6 +536,7 @@ export default function AdminPage({ groups: initialGroups, settings: initialSett
                       disabled={loading}
                     />
                   </div>
+                )}
                 <div className="flex items-center justify-between p-4 border rounded-lg">
                   <div>
                     <div className="font-semibold">Кнопка "Преподаватели"</div>

src/pages/index.tsx

@@ -17,7 +17,7 @@ import Link from 'next/link'
 import Head from 'next/head'
 import { ChevronDown } from 'lucide-react'
 import { cn } from '@/shared/utils'
-import { GITHUB_REPO_URL, TELEGRAM_CONTACT_URL } from '@/shared/constants/urls'
+import { GITHUB_REPO_URL, TELEGRAM_CONTACT_URL, SCHED_MODE } from '@/shared/constants/urls'
 import { MdAdd } from 'react-icons/md'
 import { FaGithub } from 'react-icons/fa'
 import { BsTelegram } from 'react-icons/bs'
@@ -327,7 +327,7 @@ export const getServerSideProps: GetServerSideProps<HomePageProps> = async () =>
       vacationModeEnabled: false,
       groups,
       groupsByCourse,
-      showAddGroupButton: settings.showAddGroupButton ?? true,
+      showAddGroupButton: SCHED_MODE === 'kspsuti' ? false : (settings.showAddGroupButton ?? true),
       showTeachersButton: settings.showTeachersButton ?? true
     } as NormalModeProps
   }