feat: add empty state for connection page when no apps configured

Show different messages depending on user role:
- Regular users see a friendly "check back later" message
- Admins see a prompt with a link to /admin/apps settings

src/locales/en.json

@@ -355,7 +355,11 @@
       "selectPlatform": "Select platform",
       "app": "app",
       "apps": "apps",
-      "tutorial": "Tutorial"
+      "tutorial": "Tutorial",
+      "notConfigured": "Connection methods are not configured yet",
+      "notConfiguredUser": "Connection setup is in progress. Please check back later.",
+      "notConfiguredAdmin": "No connection apps have been configured. Set them up in the Apps settings.",
+      "goToApps": "Go to Apps settings"
     },
     "myDevices": "My Devices",
     "noDevices": "No connected devices",

src/locales/fa.json

@@ -307,7 +307,11 @@
       "selectPlatform": "انتخاب پلتفرم",
       "app": "برنامه",
       "apps": "برنامه",
-      "tutorial": "آموزش"
+      "tutorial": "آموزش",
+      "notConfigured": "روش‌های اتصال هنوز پیکربندی نشده‌اند",
+      "notConfiguredUser": "تنظیمات اتصال در حال انجام است. لطفاً بعداً مراجعه کنید.",
+      "notConfiguredAdmin": "هیچ برنامه اتصالی پیکربندی نشده است. آن‌ها را در تنظیمات برنامه‌ها تنظیم کنید.",
+      "goToApps": "رفتن به تنظیمات برنامه‌ها"
     },
     "additionalOptions": {
       "title": "گزینه‌های اضافی",

src/locales/ru.json

@@ -377,7 +377,11 @@
       "selectPlatform": "Выберите платформу",
       "app": "приложение",
       "apps": "приложений",
-      "tutorial": "Инструкция"
+      "tutorial": "Инструкция",
+      "notConfigured": "Способы подключения ещё не настроены",
+      "notConfiguredUser": "Настройка подключения в процессе. Пожалуйста, загляните позже.",
+      "notConfiguredAdmin": "Приложения для подключения не настроены. Настройте их в разделе Приложения.",
+      "goToApps": "Перейти к настройке приложений"
     },
     "myDevices": "Мои устройства",
     "noDevices": "Нет подключенных устройств",

src/locales/zh.json

@@ -307,7 +307,11 @@
       "selectPlatform": "选择平台",
       "app": "个应用",
       "apps": "个应用",
-      "tutorial": "教程"
+      "tutorial": "教程",
+      "notConfigured": "连接方式尚未配置",
+      "notConfiguredUser": "连接设置正在进行中，请稍后再来查看。",
+      "notConfiguredAdmin": "尚未配置连接应用。请在应用设置中进行配置。",
+      "goToApps": "前往应用设置"
     },
     "additionalOptions": {
       "title": "附加选项",

src/pages/Connection.tsx

@@ -1,5 +1,5 @@
-import { useEffect, useCallback, useRef } from 'react';
+import { useEffect, useCallback, useMemo, useRef } from 'react';
-import { useNavigate } from 'react-router';
+import { Link, useNavigate } from 'react-router';
 import { useTranslation } from 'react-i18next';
 import { useQuery } from '@tanstack/react-query';
 import { openLink as sdkOpenLink } from '@telegram-apps/sdk-react';
@@ -8,13 +8,13 @@ import { useTelegramSDK } from '../hooks/useTelegramSDK';
 import { useHaptic } from '@/platform';
 import { resolveTemplate, hasTemplates } from '../utils/templateEngine';
 import { useAuthStore } from '../store/auth';
-import type { AppConfig } from '../types';
+import type { AppConfig, RemnawavePlatformData } from '../types';
 import InstallationGuide from '../components/connection/InstallationGuide';
 
 export default function Connection() {
   const { t, i18n } = useTranslation();
   const navigate = useNavigate();
-  const { user } = useAuthStore();
+  const { user, isAdmin } = useAuthStore();
   const { isTelegramWebApp } = useTelegramSDK();
   const { impact: hapticImpact } = useHaptic();
 
@@ -79,6 +79,14 @@ export default function Connection() {
     [isTelegramWebApp, i18n.language, resolveUrl],
   );
 
+  // Check if any platform has configured apps
+  const hasApps = useMemo(() => {
+    if (!appConfig?.platforms) return false;
+    return Object.values(appConfig.platforms).some(
+      (p: RemnawavePlatformData) => p.apps && p.apps.length > 0,
+    );
+  }, [appConfig?.platforms]);
+
   // Loading
   if (isLoading) {
     return (
@@ -115,6 +123,60 @@ export default function Connection() {
     );
   }
 
+  // No apps configured
+  if (!hasApps) {
+    return (
+      <div className="flex flex-1 flex-col items-center justify-center p-8 text-center">
+        <div className="mb-4 flex h-16 w-16 items-center justify-center rounded-2xl bg-dark-800">
+          <svg
+            className="h-8 w-8 text-dark-400"
+            fill="none"
+            viewBox="0 0 24 24"
+            stroke="currentColor"
+            strokeWidth={1.5}
+          >
+            <path
+              strokeLinecap="round"
+              strokeLinejoin="round"
+              d="M10.5 1.5H8.25A2.25 2.25 0 006 3.75v16.5a2.25 2.25 0 002.25 2.25h7.5A2.25 2.25 0 0018 20.25V3.75a2.25 2.25 0 00-2.25-2.25H13.5m-3 0V3h3V1.5m-3 0h3m-3 18.75h3"
+            />
+          </svg>
+        </div>
+        <h3 className="mb-2 text-xl font-bold text-dark-100">
+          {t('subscription.connection.notConfigured')}
+        </h3>
+        <p className="mb-6 max-w-sm text-dark-400">
+          {isAdmin
+            ? t('subscription.connection.notConfiguredAdmin')
+            : t('subscription.connection.notConfiguredUser')}
+        </p>
+        {isAdmin && (
+          <Link to="/admin/apps" className="btn-primary inline-flex items-center gap-2 px-6 py-2.5">
+            <svg
+              className="h-4 w-4"
+              fill="none"
+              viewBox="0 0 24 24"
+              stroke="currentColor"
+              strokeWidth={2}
+            >
+              <path
+                strokeLinecap="round"
+                strokeLinejoin="round"
+                d="M10.343 3.94c.09-.542.56-.94 1.11-.94h1.093c.55 0 1.02.398 1.11.94l.149.894c.07.424.384.764.78.93.398.164.855.142 1.205-.108l.737-.527a1.125 1.125 0 011.45.12l.773.774c.39.389.44 1.002.12 1.45l-.527.737c-.25.35-.272.806-.107 1.204.165.397.505.71.93.78l.893.15c.543.09.94.56.94 1.109v1.094c0 .55-.397 1.02-.94 1.11l-.893.149c-.425.07-.765.383-.93.78-.165.398-.143.854.107 1.204l.527.738c.32.447.269 1.06-.12 1.45l-.774.773a1.125 1.125 0 01-1.449.12l-.738-.527c-.35-.25-.806-.272-1.203-.107-.397.165-.71.505-.781.929l-.149.894c-.09.542-.56.94-1.11.94h-1.094c-.55 0-1.019-.398-1.11-.94l-.148-.894c-.071-.424-.384-.764-.781-.93-.398-.164-.854-.142-1.204.108l-.738.527c-.447.32-1.06.269-1.45-.12l-.773-.774a1.125 1.125 0 01-.12-1.45l.527-.737c.25-.35.273-.806.108-1.204-.165-.397-.505-.71-.93-.78l-.894-.15c-.542-.09-.94-.56-.94-1.109v-1.094c0-.55.398-1.02.94-1.11l.894-.149c.424-.07.765-.383.93-.78.165-.398.143-.854-.108-1.204l-.526-.738a1.125 1.125 0 01.12-1.45l.773-.773a1.125 1.125 0 011.45-.12l.737.527c.35.25.807.272 1.204.107.397-.165.71-.505.78-.929l.15-.894z"
+              />
+              <path
+                strokeLinecap="round"
+                strokeLinejoin="round"
+                d="M15 12a3 3 0 11-6 0 3 3 0 016 0z"
+              />
+            </svg>
+            {t('subscription.connection.goToApps')}
+          </Link>
+        )}
+      </div>
+    );
+  }
+
   return (
     <InstallationGuide
       appConfig={appConfig}