feat: use sessionStorage by default for UUID/tokens, add opt-in remember-me with warning

locales/de.json

@@ -198,7 +198,9 @@
     "downloadBackup": "Backup herunterladen",
     "confirmSaved": "Ich habe meine UUID gespeichert",
     "registrationFailed": "Registrierung fehlgeschlagen",
-    "loginRequired": "Bitte melde dich an, um fortzufahren"
+    "loginRequired": "Bitte melde dich an, um fortzufahren",
+    "rememberMe": "Auf diesem Gerät merken",
+    "rememberMeHint": "Deine UUID wird lokal gespeichert. Nur aktivieren auf vertrauenswürdigen Geräten."
   },
   "favorites": {
     "title": "Favoriten",

locales/en.json

@@ -198,7 +198,9 @@
     "downloadBackup": "Download Backup",
     "confirmSaved": "I have saved my UUID",
     "registrationFailed": "Registration failed",
-    "loginRequired": "Please log in to continue"
+    "loginRequired": "Please log in to continue",
+    "rememberMe": "Remember me on this device",
+    "rememberMeHint": "Your UUID will be stored locally. Only enable on trusted devices."
   },
   "favorites": {
     "title": "Favorites",

locales/es.json

@@ -198,7 +198,9 @@
     "downloadBackup": "Descargar copia de seguridad",
     "confirmSaved": "He guardado mi UUID",
     "registrationFailed": "Error en el registro",
-    "loginRequired": "Inicia sesión para continuar"
+    "loginRequired": "Inicia sesión para continuar",
+    "rememberMe": "Recordarme en este dispositivo",
+    "rememberMeHint": "Tu UUID se guardará localmente. Actívalo solo en dispositivos de confianza."
   },
   "favorites": {
     "title": "Favoritos",

locales/fr.json

@@ -198,7 +198,9 @@
     "downloadBackup": "Télécharger la sauvegarde",
     "confirmSaved": "J'ai sauvegardé mon UUID",
     "registrationFailed": "Échec de l'inscription",
-    "loginRequired": "Veuillez vous connecter pour continuer"
+    "loginRequired": "Veuillez vous connecter pour continuer",
+    "rememberMe": "Se souvenir de moi",
+    "rememberMeHint": "Votre UUID sera stocké localement. N'activez que sur des appareils de confiance."
   },
   "favorites": {
     "title": "Favoris",

locales/it.json

@@ -198,7 +198,9 @@
     "downloadBackup": "Scarica backup",
     "confirmSaved": "Ho salvato il mio UUID",
     "registrationFailed": "Registrazione fallita",
-    "loginRequired": "Accedi per continuare"
+    "loginRequired": "Accedi per continuare",
+    "rememberMe": "Ricordami su questo dispositivo",
+    "rememberMeHint": "Il tuo UUID verrà salvato localmente. Attiva solo su dispositivi affidabili."
   },
   "favorites": {
     "title": "Preferiti",

locales/pt.json

@@ -198,7 +198,9 @@
     "downloadBackup": "Baixar Backup",
     "confirmSaved": "Eu salvei meu UUID",
     "registrationFailed": "Falha no cadastro",
-    "loginRequired": "Por favor, faça login para continuar"
+    "loginRequired": "Por favor, faça login para continuar",
+    "rememberMe": "Lembrar neste dispositivo",
+    "rememberMeHint": "Seu UUID será armazenado localmente. Ative apenas em dispositivos confiáveis."
   },
   "favorites": {
     "title": "Favoritos",

locales/ru.json

@@ -198,7 +198,9 @@
     "downloadBackup": "Скачать резервную копию",
     "confirmSaved": "Я сохранил свой UUID",
     "registrationFailed": "Регистрация не удалась",
-    "loginRequired": "Войдите, чтобы продолжить"
+    "loginRequired": "Войдите, чтобы продолжить",
+    "rememberMe": "Запомнить на этом устройстве",
+    "rememberMeHint": "Ваш UUID будет сохранён локально. Включайте только на доверенных устройствах."
   },
   "favorites": {
     "title": "Избранное",