diff --git a/another_prompt b/another_prompt
index 407d921..69bfcde 100644
--- a/another_prompt
+++ b/another_prompt
@@ -42,3 +42,10 @@ Système de service mails aussi pour les comptes (optionel) pour recovery passwo
 when disabling attachment sendability: the text "Message" placeholder nto the composer chat are too tigh to the left border, make a fallback padding when no attachment button
 
 make in the settigns: an sub category: changing key, admiting TOTP key/passkey for security
+
+--- bugd II:
+sur la page share, l' avatar de l'utilisateur  ne s'affiche pas -> fix sa
+
+--- improvements:
+éviter de ask h24 ollama pour ces modèles quand un utilisateur ce connece. c'est le backend qui sert les demande d el'utilisateurs. iL relay pas sur le ollama. Le backend vas cacher avec un TLL les modèles présent en mémire dans un objet qui est dans le backend. refresh avec un TT: toutes les minutes.
+L'administrateur lui, qand il demande les modèles dams le ollama, lui, force un refresh .
diff --git a/frontend/src/components/Login.tsx b/frontend/src/components/Login.tsx
index 17ad31f..9e05c07 100644
--- a/frontend/src/components/Login.tsx
+++ b/frontend/src/components/Login.tsx
@@ -89,7 +89,7 @@ export function Login({ onLogin }: { onLogin: (user: UserType) => void }) {
           {totpToken ? (
             <form onSubmit={submitTotp} className="mt-6 space-y-3">
               <p className="text-center text-sm opacity-70">
-                Two-factor for <strong>@{totpUsername}</strong> — enter the 6-digit code from your authenticator app.
+                {t("login.totpIntro", { user: "@" + totpUsername })}
               </p>
               <div className="relative">
                 <KeyRound size={17} className="pointer-events-none absolute left-5 top-1/2 -translate-y-1/2 text-stone-400 dark:text-zinc-500" />
@@ -156,13 +156,13 @@ export function Login({ onLogin }: { onLogin: (user: UserType) => void }) {
               </p>
             )}
             <Button type="submit" variant="gradient" size="lg" className="w-full" disabled={busy}>
-              {busy ? <Spinner /> : (<>Unlock <ArrowRight size={17} /></>)}
+              {busy ? <Spinner /> : (<>{t("login.unlock")} <ArrowRight size={17} /></>)}
             </Button>
           </form>
           )}
           <div className="mt-4 flex items-center gap-3 text-xs opacity-40">
             <span className="h-px flex-1 bg-current" />
-            New here?
+            {t("login.newHere")}
             <span className="h-px flex-1 bg-current" />
           </div>
           <Button
@@ -170,11 +170,11 @@ export function Login({ onLogin }: { onLogin: (user: UserType) => void }) {
             size="lg"
             className="mt-3 w-full"
             disabled={!registrationOn}
-            title={registrationOn ? "Create an account" : "Registration currently disabled on this platform"}
+            title={registrationOn ? t("login.regTipOn") : t("login.regTipOff")}
             onClick={() => setRegisterOpen(true)}
           >
             <UserPlus size={16} />
-            Register
+            {t("login.register")}
           </Button>
           <RegisterDialog
             open={registerOpen}
diff --git a/frontend/src/components/dialogs.tsx b/frontend/src/components/dialogs.tsx
index a4d1409..17cb779 100644
--- a/frontend/src/components/dialogs.tsx
+++ b/frontend/src/components/dialogs.tsx
@@ -5,7 +5,7 @@ import { cn } from "../lib/cn.ts";
 import { ACCENT_PRESETS, applyAccent, currentAccent, previewAccent, type AccentState } from "../lib/accent.ts";
 import { FEATURES, setFeature, useFeatures } from "../lib/features.ts";
 import type { Conversation, FilePreview, User } from "../lib/types.ts";
-import { Avatar, bumpCdnVersion, Button, CopyButton, Field, Input, Modal, Picker, Spinner, Toggle } from "./ui.tsx";
+import { Avatar, bumpCdnVersion, Button, ConfirmDialog, CopyButton, Field, Input, Modal, Picker, Spinner, Toggle } from "./ui.tsx";
 
 /* ---------- Rename + topic ---------- */
 
@@ -705,7 +705,7 @@ function SecuritySection({ onKeyRotated }: { onKeyRotated?: () => void }) {
   const [error, setError] = useState("");
   const [rotatedKey, setRotatedKey] = useState<string | null>(null);
   const [armingRotate, setArmingRotate] = useState(false);
-  const [armingDelete, setArmingDelete] = useState(false);
+  const [confirmDelete, setConfirmDelete] = useState(false);
 
   useEffect(() => {
     api.totpStatus().then((r) => setTotpOn(r.enabled)).catch(() => setTotpOn(false));
@@ -776,14 +776,11 @@ function SecuritySection({ onKeyRotated }: { onKeyRotated?: () => void }) {
   }
 
   async function removeAccount() {
-    if (!armingDelete) {
-      setArmingDelete(true);
-      return;
-    }
     setBusy(true);
     setError("");
     try {
       await api.deleteMe();
+      setConfirmDelete(false);
       onKeyRotated?.();
     } catch (err) {
       setError(err instanceof Error ? err.message : "Delete failed");
@@ -796,24 +793,10 @@ function SecuritySection({ onKeyRotated }: { onKeyRotated?: () => void }) {
     <div className="space-y-5">
       <div>
         <p className="mb-1 flex items-center gap-1.5 text-sm font-medium"><KeyRound size={14} className="opacity-60" /> Access key</p>
-        {rotatedKey ? (
-          <div className="rounded-2xl border border-accent-500/40 bg-accent-50 p-3 dark:bg-accent-950/30">
-            <p className="mb-2 text-sm font-medium">New key — copy it now, it won't be shown again:</p>
-            <div className="flex items-center gap-2">
-              <code className="min-w-0 flex-1 truncate rounded-xl bg-white px-3 py-2 text-sm dark:bg-zinc-900">{rotatedKey}</code>
-              <CopyButton text={rotatedKey} />
-            </div>
-            <p className="mt-2 text-xs opacity-70">Your old sessions are revoked. Log back in with the new key.</p>
-            <Button size="sm" className="mt-2 w-full" onClick={() => onKeyRotated?.()}>Done — log me out</Button>
-          </div>
-        ) : (
-          <>
-            <p className="mb-2 text-xs opacity-60">Rotate your access key. Old sessions are revoked immediately — you'll log back in with the new key.</p>
-            <Button size="sm" variant="secondary" disabled={busy} onClick={rotate}>
-              {armingRotate ? "Click again to confirm rotation" : "Rotate my access key"}
-            </Button>
-          </>
-        )}
+        <p className="mb-2 text-xs opacity-60">Rotate your access key. Old sessions are revoked immediately — you'll log back in with the new key.</p>
+        <Button size="sm" variant="secondary" disabled={busy} onClick={rotate}>
+          {armingRotate ? "Click again to confirm rotation" : "Rotate my access key"}
+        </Button>
       </div>
 
       <div>
@@ -880,12 +863,35 @@ function SecuritySection({ onKeyRotated }: { onKeyRotated?: () => void }) {
           <Trash2 size={14} /> Danger zone
         </p>
         <p className="mb-2 text-xs opacity-60">Permanently delete your account with all chats, shares and sessions. Cannot be undone.</p>
-        <Button size="sm" variant="secondary" disabled={busy} onClick={removeAccount} className="!text-red-600 dark:!text-red-400">
-          {armingDelete ? "Click again to permanently delete" : "Delete my account"}
+        <Button size="sm" variant="secondary" disabled={busy} onClick={() => setConfirmDelete(true)} className="!text-red-600 dark:!text-red-400">
+          Delete my account
         </Button>
       </div>
 
       {error && <p className="text-sm text-red-600 dark:text-red-400">{error}</p>}
+
+      <Modal open={rotatedKey !== null} onClose={() => {}} title="New access key" icon={KeyRound}>
+        <div className="space-y-4">
+          <p className="text-sm opacity-80">Copy it now — it won't be shown again. Your old sessions are revoked.</p>
+          <div className="flex items-center gap-2">
+            <code className="min-w-0 flex-1 truncate rounded-2xl bg-stone-100 px-3 py-2.5 font-mono text-sm dark:bg-zinc-800">{rotatedKey}</code>
+            {rotatedKey && <CopyButton text={rotatedKey} />}
+          </div>
+          <Button size="sm" className="w-full" onClick={() => onKeyRotated?.()}>Done — log me out</Button>
+        </div>
+      </Modal>
+
+      <ConfirmDialog
+        open={confirmDelete}
+        onClose={() => setConfirmDelete(false)}
+        onConfirm={removeAccount}
+        title="Delete your account?"
+        message="This permanently removes your account with all conversations, shares and sessions. This cannot be undone."
+        confirmLabel="Delete forever"
+      />
+    </div>
+  );
+}
     </div>
   );
 }
diff --git a/frontend/src/lib/i18n.ts b/frontend/src/lib/i18n.ts
index 0497c59..6458f6d 100644
--- a/frontend/src/lib/i18n.ts
+++ b/frontend/src/lib/i18n.ts
@@ -56,8 +56,12 @@ const en = {
   "login.forgot": "Forgot your access key?",
   "login.perk1": "Private by design — no cookies, no tracking",
   "login.perk2": "Your own models, streamed in real time",
-  "login.adminNote":
-    "Admin key lives in the server .env; user keys are issued by the admin.",
+  "login.adminNotePre": "Admin key lives in the server ",
+  "login.adminNotePost": "; user keys are issued by the admin.",
+  "login.totpIntro": "Two-factor for @{user} — enter the 6-digit code from your authenticator app.",
+  "login.totpAria": "Authenticator code",
+  "login.totpInvalid": "Invalid code",
+  "login.verify": "Verify",
 
   "sidebar.newChat": "New chat",
   "sidebar.collapse": "Collapse sidebar",
@@ -357,8 +361,12 @@ const es: Dict = {
   "login.forgot": "¿Olvidaste tu clave de acceso?",
   "login.perk1": "Privado por diseño — sin cookies ni rastreo",
   "login.perk2": "Tus propios modelos, en tiempo real",
-  "login.adminNote":
-    "La clave de admin vive en el .env del servidor; las claves de usuario las emite el admin.",
+  "login.adminNotePre": "La clave de admin vive en el .env del servidor",
+  "login.adminNotePost": "; las claves de usuario las emite el admin.",
+  "login.totpIntro": "Doble factor para @{user} — escribe el código de 6 dígitos de tu app.",
+  "login.totpAria": "Código de autenticación",
+  "login.totpInvalid": "Código inválido",
+  "login.verify": "Verificar",
 
   "sidebar.newChat": "Nuevo chat",
   "sidebar.collapse": "Ocultar barra lateral",
@@ -650,8 +658,12 @@ const fr: Dict = {
   "login.forgot": "Clé d'accès oubliée ?",
   "login.perk1": "Privé par conception — sans cookies ni suivi",
   "login.perk2": "Vos propres modèles, en temps réel",
-  "login.adminNote":
-    "La clé admin vit dans le .env du serveur ; les clés utilisateur sont émises par l'admin.",
+  "login.adminNotePre": "La clé admin vit dans le .env du serveur",
+  "login.adminNotePost": " ; les clés utilisateur sont émises par l'admin.",
+  "login.totpIntro": "Double facteur pour @{user} — entrez le code à 6 chiffres de votre app.",
+  "login.totpAria": "Code d'authentification",
+  "login.totpInvalid": "Code invalide",
+  "login.verify": "Vérifier",
 
   "sidebar.newChat": "Nouveau chat",
   "sidebar.collapse": "Masquer la barre latérale",
@@ -943,8 +955,12 @@ const ru: Dict = {
   "login.forgot": "Забыли ключ доступа?",
   "login.perk1": "Приватность по умолчанию — без cookies и трекинга",
   "login.perk2": "Ваши модели, в реальном времени",
-  "login.adminNote":
-    "Ключ админа живёт в .env сервера; ключи пользователей выдаёт админ.",
+  "login.adminNotePre": "Ключ админа живёт в .env сервера",
+  "login.adminNotePost": "; ключи пользователей выдаёт админ.",
+  "login.totpIntro": "Двухфакторка для @{user} — введите 6-значный код из приложения.",
+  "login.totpAria": "Код аутентификатора",
+  "login.totpInvalid": "Неверный код",
+  "login.verify": "Проверить",
 
   "sidebar.newChat": "Новый чат",
   "sidebar.collapse": "Скрыть панель",
@@ -1225,8 +1241,12 @@ const it: Dict = {
   "login.forgot": "Chiave dimenticata?",
   "login.perk1": "Privato per progettazione — niente cookie né traccianti",
   "login.perk2": "I tuoi modelli, in tempo reale",
-  "login.adminNote":
-    "La chiave admin vive nel .env del server; le chiavi utente le emette l'admin.",
+  "login.adminNotePre": "La chiave admin vive nel .env del server",
+  "login.adminNotePost": "; le chiavi utente le emette l'admin.",
+  "login.totpIntro": "Doppio fattore per @{user} — inserisci il codice a 6 cifre dall'app.",
+  "login.totpAria": "Codice autenticatore",
+  "login.totpInvalid": "Codice non valido",
+  "login.verify": "Verifica",
 
   "sidebar.newChat": "Nuova chat",
   "sidebar.collapse": "Nascondi barra laterale",
@@ -1815,7 +1835,7 @@ export function t(
   let s: string = dicts[current][key] ?? dicts.en[key] ?? key;
   if (vars) {
     for (const [k, v] of Object.entries(vars))
-      s = s.split(`{${k}}`).join(String(v));
+      s = s.replaceAll(`{${k}}`, String(v));
   }
   return s;
 }
diff --git a/frontend/tsconfig.json b/frontend/tsconfig.json
index a4c834a..0426f7b 100644
--- a/frontend/tsconfig.json
+++ b/frontend/tsconfig.json
@@ -1,8 +1,8 @@
 {
   "compilerOptions": {
-    "target": "ES2020",
+    "target": "ES2022",
     "useDefineForClassFields": true,
-    "lib": ["ES2020", "DOM", "DOM.Iterable"],
+    "lib": ["ES2022", "DOM", "DOM.Iterable"],
     "module": "ESNext",
     "skipLibCheck": true,
     "moduleResolution": "bundler",