diff --git a/docs/sprint-status.yaml b/docs/sprint-status.yaml
index 360e139..a9cd0c2 100644
--- a/docs/sprint-status.yaml
+++ b/docs/sprint-status.yaml
@@ -51,7 +51,7 @@ development_status:
   3-6-stripe-subscription-tiers: review
   epic-3-retrospective: optional
   epic-4: in-progress
-  4-1-gdpr-cookie-consent: ready-for-dev
+  4-1-gdpr-cookie-consent: in-progress
   4-2-gdpr-right-to-be-forgotten: backlog
   4-3-data-portability: backlog
   4-4-explicit-ai-consent: backlog
diff --git a/docs/stripe-billing-guide.md b/docs/stripe-billing-guide.md
new file mode 100644
index 0000000..e6622ed
--- /dev/null
+++ b/docs/stripe-billing-guide.md
@@ -0,0 +1,451 @@
+# Momento — Guide Stripe : Configuration, Architecture et Utilisation
+
+## Vue d'ensemble
+
+Momento utilise **Stripe** pour la gestion des abonnements payants (Pro, Business, Enterprise). Le système repose sur :
+
+- **Stripe Embedded Checkout** (modal dans l'app, sans redirection)
+- **Webhooks** pour synchroniser l'état des abonnements en temps réel
+- **Customer Portal** pour que les utilisateurs gèrent leur carte/facturation
+- Un **feature flag** pour activer/désactiver le billing sans déploiement
+
+---
+
+## 1. Architecture
+
+```
+┌─────────────────────────────────────────────────────────┐
+│                    Frontend (React)                      │
+│                                                         │
+│  /settings/billing                                      │
+│  └─ billing-plans.tsx                                   │
+│     ├─ Cartes Free / Pro / Business / Enterprise        │
+│     ├─ Toggle mensuel/annuel                            │
+│     ├─ Embedded Checkout (modal Stripe)                 │
+│     └─ Lien vers Customer Portal                       │
+│                                                         │
+│  /settings → SettingsNav → onglet "Facturation"        │
+│  Sidebar → UsageMeter → lien vers /settings/billing    │
+└───────────────────────┬─────────────────────────────────┘
+                        │
+           POST /api/billing/create-checkout
+           POST /api/billing/portal
+           GET  /api/billing/status
+                        │
+┌───────────────────────▼─────────────────────────────────┐
+│                  Backend (Next.js API)                   │
+│                                                         │
+│  lib/stripe.ts           → Client Stripe singleton      │
+│  lib/billing/            → Logique métier billing       │
+│    ├─ stripe-prices.ts   → Mapping priceId ↔ tier       │
+│    └─ sync-subscription-from-stripe.ts                   │
+│          → Upsert Prisma Subscription depuis webhook    │
+│                                                         │
+│  POST /api/billing/webhook  → Reception événements      │
+│                                Stripe (raw body + sig)   │
+└───────────────────────┬─────────────────────────────────┘
+                        │
+           ┌────────────▼────────────┐
+           │    PostgreSQL (Prisma)   │
+           │                         │
+           │  Subscription {         │
+           │    userId               │
+           │    tier (BASIC/PRO/     │
+           │      BUSINESS/ENTERP.)  │
+           │    status (ACTIVE/      │
+           │      CANCELED/...)      │
+           │    stripeCustomerId     │
+           │    stripeSubscriptionId │
+           │    stripePriceId        │
+           │    currentPeriodStart   │
+           │    currentPeriodEnd     │
+           │    cancelAtPeriodEnd    │
+           │  }                      │
+           └────────────┬────────────┘
+                        │
+           ┌────────────▼────────────┐
+           │    Redis                │
+           │                         │
+           │  usage:{userId}:        │
+           │    {feature}:{period}   │
+           │  → Compteurs mensuels   │
+           └─────────────────────────┘
+```
+
+---
+
+## 2. Configuration pas à pas
+
+### 2.1 Créer un compte Stripe
+
+1. Aller sur https://dashboard.stripe.com/register
+2. Créer un compte (utiliser l'email `sales@memento-note.com`)
+3. Activer le **mode test** (toggle en haut à droite)
+
+### 2.2 Créer les produits et prix
+
+Dans le **Stripe Dashboard** → **Produits** :
+
+#### Produit 1 : Momento Pro
+
+| Champ | Valeur |
+|-------|--------|
+| Nom | Momento Pro |
+| Description | Pour les consultants et créateurs exigeants |
+
+Créer **2 prix** :
+
+| Prix | Montant | Récurrent |
+|------|---------|-----------|
+| Pro Mensuel | 9,90 EUR | Tous les mois |
+| Pro Annuel | 99 EUR | Tous les ans |
+
+#### Produit 2 : Momento Business
+
+| Champ | Valeur |
+|-------|--------|
+| Nom | Momento Business |
+| Description | Pour les équipes et chefs de produit |
+
+Créer **2 prix** :
+
+| Prix | Montant | Récurrent |
+|------|---------|-----------|
+| Business Mensuel | 29,90 EUR | Tous les mois |
+| Business Annuel | 299 EUR | Tous les ans |
+
+> **Enterprise** n'a pas de prix Stripe — c'est un contact manuel (`sales@memento-note.com`).
+
+### 2.3 Récupérer les clés et price IDs
+
+Dans **Stripe Dashboard** → **Développeurs** → **Clés API** :
+
+| Variable | Où la trouver |
+|----------|---------------|
+| `STRIPE_SECRET_KEY` | Clés API → Clé secrète (sk_test_...) |
+| `NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY` | Clés API → Clé publiable (pk_test_...) |
+
+Dans **Stripe Dashboard** → **Produits** → cliquer sur chaque prix :
+
+| Variable | Source |
+|----------|--------|
+| `STRIPE_PRICE_PRO_MONTHLY` | Produit Pro → Prix mensuel → `price_1xxx...` |
+| `STRIPE_PRICE_PRO_ANNUAL` | Produit Pro → Prix annuel → `price_1yyy...` |
+| `STRIPE_PRICE_BUSINESS_MONTHLY` | Produit Business → Prix mensuel → `price_1zzz...` |
+| `STRIPE_PRICE_BUSINESS_ANNUAL` | Produit Business → Prix annuel → `price_1www...` |
+
+### 2.4 Configurer le webhook
+
+Dans **Stripe Dashboard** → **Développeurs** → **Webhooks** :
+
+1. Cliquer **Ajouter un endpoint**
+2. URL : `https://memento-note.com/api/billing/webhook`
+3. Événements à écouter :
+   - `checkout.session.completed`
+   - `customer.subscription.created`
+   - `customer.subscription.updated`
+   - `customer.subscription.deleted`
+   - `invoice.payment_failed`
+4. Copier la **signature secrète** → `STRIPE_WEBHOOK_SECRET` (commence par `whsec_...`)
+
+### 2.5 Configurer le Customer Portal
+
+Dans **Stripe Dashboard** → **Paramètres** → **Customer Portal** :
+
+1. Activer le portal
+2. Configurer les fonctions autorisées :
+   - Mettre à jour le moyen de paiement
+   - Voir les factures
+   - Annuler l'abonnement
+   - Changer de plan (optionnel)
+3. URL de retour : `https://memento-note.com/settings/billing`
+
+### 2.6 Remplir le fichier `.env`
+
+Ajouter dans `memento-note/.env` :
+
+```env
+# Stripe — Server-side (NE JAMAIS exposer côté client)
+STRIPE_SECRET_KEY="sk_test_VOTRE_CLE_SECRETE"
+STRIPE_WEBHOOK_SECRET="whsec_VOTRE_SIGNATURE_WEBHOOK"
+
+# Stripe — Price IDs
+STRIPE_PRICE_PRO_MONTHLY="price_ID_PRO_MENSUEL"
+STRIPE_PRICE_PRO_ANNUAL="price_ID_PRO_ANNUEL"
+STRIPE_PRICE_BUSINESS_MONTHLY="price_ID_BUSINESS_MENSUEL"
+STRIPE_PRICE_BUSINESS_ANNUAL="price_ID_BUSINESS_ANNUEL"
+
+# Stripe — Client-side (sûr à exposer)
+NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY="pk_test_VOTRE_CLE_PUBLIABLE"
+
+# Activer l'interface de facturation
+NEXT_PUBLIC_FEATURE_BILLING_ENABLED="true"
+```
+
+> **Important** : Relancer le serveur après modification du `.env`.
+
+### 2.7 Résumé des variables
+
+| Variable | Où | Obligatoire |
+|----------|----|----|
+| `STRIPE_SECRET_KEY` | `.env` (server) | Oui |
+| `STRIPE_WEBHOOK_SECRET` | `.env` (server) | Oui |
+| `STRIPE_PRICE_PRO_MONTHLY` | `.env` (server) | Oui |
+| `STRIPE_PRICE_PRO_ANNUAL` | `.env` (server) | Oui |
+| `STRIPE_PRICE_BUSINESS_MONTHLY` | `.env` (server) | Oui |
+| `STRIPE_PRICE_BUSINESS_ANNUAL` | `.env` (server) | Oui |
+| `NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY` | `.env` (client+server) | Oui |
+| `NEXT_PUBLIC_FEATURE_BILLING_ENABLED` | `.env` (client+server) | Oui |
+
+---
+
+## 3. Flux utilisateur
+
+### 3.1 Checkout (achat d'un plan)
+
+```
+Utilisateur                    Frontend                    Backend                  Stripe
+    │                            │                          │                        │
+    │  Clique "Passer Pro"       │                          │                        │
+    │───────────────────────────>│                          │                        │
+    │                            │  POST /api/billing/      │                        │
+    │                            │       create-checkout    │                        │
+    │                            │  {tier: "PRO",           │                        │
+    │                            │   interval: "month"}     │                        │
+    │                            │─────────────────────────>│                        │
+    │                            │                          │  Crée/respire          │
+    │                            │                          │  Customer + Session    │
+    │                            │                          │───────────────────────>│
+    │                            │                          │                        │
+    │                            │                          │  {clientSecret}        │
+    │                            │                          │<───────────────────────│
+    │                            │                          │                        │
+    │                            │  Modal Embedded          │                        │
+    │                            │  Checkout Stripe         │                        │
+    │                            │<─────────────────────────│                        │
+    │                            │                          │                        │
+    │  Remplit carte 4242...     │                          │                        │
+    │───────────────────────────>│                          │                        │
+    │                            │  Paiement Stripe         │                        │
+    │                            │─────────────────────────────────────────────────>│
+    │                            │                          │                        │
+    │                            │                          │  Webhook:              │
+    │                            │                          │  checkout.session.     │
+    │                            │                          │  completed             │
+    │                            │                          │<───────────────────────│
+    │                            │                          │                        │
+    │                            │                          │  Upsert Subscription   │
+    │                            │                          │  tier=PRO status=ACTIVE│
+    │                            │                          │                        │
+    │  Toast "Bienvenue Pro !"   │                          │                        │
+    │  UsageMeter rafraîchi      │                          │                        │
+    │<───────────────────────────│                          │                        │
+```
+
+### 3.2 Webhook — Cycle de vie des abonnements
+
+| Événement Stripe | Action Momento | Statut Prisma |
+|------------------|---------------|---------------|
+| `checkout.session.completed` | Upsert subscription avec tier/periode | `ACTIVE` |
+| `customer.subscription.created` | Upsert (nouvelle souscription) | Selon Stripe |
+| `customer.subscription.updated` | Upsert (changement de plan, etc.) | Selon Stripe |
+| `customer.subscription.deleted` | Marquer annulé | `CANCELED` |
+| `invoice.payment_failed` | Sync subscription (passage en `PAST_DUE`) | `PAST_DUE` |
+
+### 3.3 Mapping statuts Stripe → Prisma
+
+| Stripe | Prisma | Comportement `getEffectiveTier()` |
+|--------|--------|----------------------------------|
+| `active` | `ACTIVE` | Retourne le tier payé (PRO/BUSINESS) |
+| `trialing` | `TRIALING` | Retourne le tier (accès complet pendant l'essai) |
+| `past_due` | `PAST_DUE` | Garde le tier jusqu'à `currentPeriodEnd` |
+| `canceled` / `unpaid` | `CANCELED` | Garde le tier jusqu'à `currentPeriodEnd`, puis BASIC |
+| `incomplete_expired` | `INACTIVE` | Retourne BASIC |
+
+---
+
+## 4. Pages et composants
+
+### 4.1 Accès utilisateur
+
+| URL | Description |
+|-----|-------------|
+| `/settings/billing` | Page principale : plans, usage, facturation |
+| `/settings` → onglet "Facturation" | Navigation via SettingsNav |
+| UsageMeter (sidebar) → "Upgrade" | Lien direct vers `/settings/billing` |
+
+### 4.2 Composants clés
+
+| Fichier | Rôle |
+|---------|------|
+| `components/settings/billing-plans.tsx` | Cartes de plans, checkout modal, usage grid, portal |
+| `components/settings/SettingsNav.tsx` | Onglet "Facturation" avec icône CreditCard |
+| `components/settings/billing-history.tsx` | Lien vers le portal Stripe pour factures |
+| `components/usage-meter.tsx` | Meter sidebar → lien vers billing quand quota dépassé |
+
+### 4.3 API Routes
+
+| Route | Méthode | Auth | Description |
+|-------|---------|------|-------------|
+| `/api/billing/create-checkout` | POST | Session | Crée une session checkout embedded |
+| `/api/billing/portal` | POST | Session | Ouvre le portal client Stripe |
+| `/api/billing/status` | GET | Session | Retourne tier, status, periodEnd |
+| `/api/billing/webhook` | POST | Signature Stripe | Reçoit les événements lifecycle |
+
+### 4.4 Librairies backend
+
+| Fichier | Rôle |
+|---------|------|
+| `lib/stripe.ts` | Client Stripe singleton (`getStripe()`) |
+| `lib/billing/stripe-prices.ts` | `resolvePriceId()` et `priceIdToTier()` |
+| `lib/billing/sync-subscription-from-stripe.ts` | Upsert Prisma depuis webhook Stripe |
+| `lib/entitlements.ts` | `getEffectiveTier()`, `TIER_LIMITS`, `getUserQuotas()` |
+
+---
+
+## 5. Quotas par tier
+
+| Feature | BASIC | PRO | BUSINESS | ENTERPRISE |
+|---------|-------|-----|----------|------------|
+| Recherche sémantique | 30 | 100 | 1000 | ∞ |
+| Tags automatiques | 20 | 200 | 1000 | ∞ |
+| Titres automatiques | 10 | 200 | 1000 | ∞ |
+| Reformulation | — | 50 | 500 | ∞ |
+| Chat IA | — | 100 | 1000 | ∞ |
+| Brainstorm (création) | 1 | 30 | 200 | ∞ |
+| Brainstorm (expansion) | 10 | 100 | 500 | ∞ |
+| Brainstorm (enrichissement) | 20 | 200 | 1000 | ∞ |
+
+> Les compteurs sont stockés dans Redis avec un TTL de 90 jours. Le tier détermine les limites, pas les compteurs.
+
+---
+
+## 6. Tests
+
+### Tests unitaires (22 tests, 100% passent)
+
+| Fichier | Tests | Description |
+|---------|-------|-------------|
+| `tests/unit/billing-price-map.test.ts` | 10 | Mapping priceId → tier, erreurs si env manquant |
+| `tests/unit/billing-sync.test.ts` | 12 | Upsert Prisma, mapping statuts Stripe→Prisma, métadonnées |
+
+### Lancer les tests
+
+```bash
+cd memento-note
+npx vitest run tests/unit/billing-price-map.test.ts tests/unit/billing-sync.test.ts
+```
+
+---
+
+## 7. Test local avec Stripe CLI
+
+### 7.1 Installer Stripe CLI
+
+```bash
+# macOS
+brew install stripe/stripe-cli/stripe
+
+# Linux
+curl -s https://packages.stripe.dev/api/security/keypair/stripe-cli-gpg/public/download.gpg | sudo tee /usr/share/keyrings/stripe.gpg
+echo "deb [signed-by=/usr/share/keyrings/stripe.gpg] https://packages.stripe.dev/stripe-cli-debian-local stable main" | sudo tee -a /etc/apt/sources.list.d/stripe.list
+sudo apt update && sudo apt install stripe
+```
+
+### 7.2 Forward des webhooks en local
+
+```bash
+stripe listen --forward-to localhost:3000/api/billing/webhook
+```
+
+Cette commande affiche la signature webhook (`whsec_...`) à mettre dans `STRIPE_WEBHOOK_SECRET`.
+
+### 7.3 Tester un paiement
+
+1. Lancer le serveur : `npm run dev`
+2. Aller sur `/settings/billing`
+3. Cliquer "Passer au Plan Pro"
+4. Utiliser la carte test : **4242 4242 4242 4242**
+5. Date d'expiration : n'importe quelle date future
+6. CVC : n'importe quels 3 chiffres
+7. Le webhook se déclenche → `Subscription` upserté dans la DB
+
+### 7.4 Vérifier en base
+
+```sql
+SELECT tier, status, "currentPeriodStart", "currentPeriodEnd"
+FROM "Subscription"
+WHERE "userId" = 'VOTRE_USER_ID';
+```
+
+### 7.5 Vérifier via l'API
+
+```bash
+curl http://localhost:3000/api/billing/status -H "Cookie: next-auth.session-token=VOTRE_TOKEN"
+```
+
+Devrait retourner :
+```json
+{
+  "tier": "PRO",
+  "effectiveTier": "PRO",
+  "status": "ACTIVE",
+  "currentPeriodEnd": "2026-06-16T...",
+  "cancelAtPeriodEnd": false,
+  "hasStripeSubscription": true
+}
+```
+
+---
+
+## 8. Passage en production
+
+### 8.1 Checklist
+
+- [ ] Compte Stripe vérifié (KYC complété)
+- [ ] Produits et prix créés en **mode live**
+- [ ] Webhook configuré en mode live avec l'URL de production
+- [ ] Variables `.env` mises à jour avec les clés live (`sk_live_...`, `pk_live_...`)
+- [ ] `NEXT_PUBLIC_FEATURE_BILLING_ENABLED="true"`
+- [ ] Customer Portal configuré pour le mode live
+- [ ] Tester un paiement réel avec une vraie carte
+
+### 8.2 Sécurité
+
+- **Jamais** de `STRIPE_SECRET_KEY` ou `STRIPE_WEBHOOK_SECRET` côté client
+- Les price IDs sont côté serveur uniquement
+- Le webhook vérifie la signature Stripe-Signature sur chaque requête
+- L'upsert par `stripeSubscriptionId` garantit l'idempotence
+
+---
+
+## 9. Dépannage
+
+### Les cartes de plans ne s'affichent pas
+→ Vérifier `NEXT_PUBLIC_FEATURE_BILLING_ENABLED="true"` dans `.env` et relancer le serveur.
+
+### Le checkout ne s'ouvre pas
+→ Vérifier `NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY` est défini. Regarder la console navigateur.
+
+### Le webhook ne se déclenche pas
+→ En local : utiliser `stripe listen --forward-to localhost:3000/api/billing/webhook`
+→ En production : vérifier l'URL du webhook dans le Stripe Dashboard.
+
+### L'abonnement reste BASIC après paiement
+→ Vérifier les logs du webhook (`[billing/webhook]`). Le `userId` doit être dans les metadata de la session.
+
+### `getStripe()` throw "STRIPE_SECRET_KEY is required"
+→ Ajouter `STRIPE_SECRET_KEY` dans `.env`.
+
+---
+
+## 10. Tarification
+
+| Tier | Mensuel | Annuel | Économie annuelle |
+|------|---------|--------|-------------------|
+| Gratuit | 0 € | — | — |
+| Pro | 9,90 € | 99 € | ~17% |
+| Business | 29,90 € | 299 € | ~17% |
+| Enterprise | Sur devis | Sur devis | — |
+
+Devise : EUR (configurable dans Stripe Dashboard pour multi-devises).
diff --git a/memento-note/app/(admin)/admin/user-list.tsx b/memento-note/app/(admin)/admin/user-list.tsx
index 4d31130..1dd2702 100644
--- a/memento-note/app/(admin)/admin/user-list.tsx
+++ b/memento-note/app/(admin)/admin/user-list.tsx
@@ -135,7 +135,7 @@ export function UserList({ initialUsers }: { initialUsers: any[] }) {
             <th className="h-12 px-4 align-middle font-medium text-muted-foreground">{t('admin.users.table.name')}</th>
             <th className="h-12 px-4 align-middle font-medium text-muted-foreground">{t('admin.users.table.email')}</th>
             <th className="h-12 px-4 align-middle font-medium text-muted-foreground">{t('admin.users.table.role')}</th>
-            <th className="h-12 px-4 align-middle font-medium text-muted-foreground">{t('admin.users.table.subscription') || 'Abonnement'}</th>
+            <th className="h-12 px-4 align-middle font-medium text-muted-foreground">{t('admin.users.table.subscription')}</th>
             <th className="h-12 px-4 align-middle font-medium text-muted-foreground">{t('admin.users.table.createdAt')}</th>
             <th className="h-12 px-4 align-middle font-medium text-muted-foreground text-right">{t('admin.users.table.actions')}</th>
           </tr>
diff --git a/memento-note/app/(main)/settings/appearance/appearance-settings-client.tsx b/memento-note/app/(main)/settings/appearance/appearance-settings-client.tsx
index 4368b30..da61644 100644
--- a/memento-note/app/(main)/settings/appearance/appearance-settings-client.tsx
+++ b/memento-note/app/(main)/settings/appearance/appearance-settings-client.tsx
@@ -56,7 +56,7 @@ export function AppearanceSettingsClient({
     localStorage.setItem('theme-preference', next)
     applyDocumentTheme(next)
     await updateUserSettings({ theme: next })
-    toast.success(t('settings.settingsSaved') || 'Saved')
+    toast.success(t('settings.settingsSaved'))
   }
 
   const handleFontSizeChange = async (value: string) => {
@@ -64,7 +64,7 @@ export function AppearanceSettingsClient({
     const map: Record<string, string> = { small: '14px', medium: '16px', large: '18px', 'extra-large': '20px' }
     document.documentElement.style.setProperty('--user-font-size', map[value] || '16px')
     await updateAISettings({ fontSize: value as any })
-    toast.success(t('settings.settingsSaved') || 'Saved')
+    toast.success(t('settings.settingsSaved'))
   }
 
   const handleFontFamilyChange = async (value: string) => {
@@ -80,7 +80,7 @@ export function AppearanceSettingsClient({
     if (font === 'playfair') root.classList.add('font-playfair')
     if (font === 'jetbrains') root.classList.add('font-jetbrains')
     await updateAISettings({ fontFamily: font as 'inter' | 'playfair' | 'jetbrains' | 'system' })
-    toast.success(t('settings.settingsSaved') || 'Saved')
+    toast.success(t('settings.settingsSaved'))
   }
 
   const SelectCard = ({
@@ -174,7 +174,7 @@ export function AppearanceSettingsClient({
     >
       <div className="space-y-10">
         <p className="text-[11px] font-bold uppercase tracking-[0.2em] text-muted-foreground">
-          {t('appearance.description') || "Personnalisez l'interface"}
+          {t('appearance.description')}
         </p>
 
         <div className="grid grid-cols-1 md:grid-cols-2 gap-8">
@@ -186,8 +186,8 @@ export function AppearanceSettingsClient({
                   <Palette size={20} />
                 </div>
                 <div className="space-y-0.5 text-left">
-                  <h4 className="text-base font-bold text-foreground">{t('appearance.accentColorTitle') || 'Couleur d\'accentuation'}</h4>
-                  <p className="text-[11px] text-muted-foreground leading-tight">{t('appearance.accentColorDescription') || 'Définissez la couleur principale de votre espace de travail'}</p>
+                  <h4 className="text-base font-bold text-foreground">{t('appearance.accentColorTitle')}</h4>
+                  <p className="text-[11px] text-muted-foreground leading-tight">{t('appearance.accentColorDescription')}</p>
                 </div>
               </div>
               <div className="flex items-center gap-3 bg-slate-50 dark:bg-black/20 px-4 py-2 rounded-xl border border-border/40">
@@ -264,14 +264,14 @@ export function AppearanceSettingsClient({
 
           <SelectCard
             icon={Type}
-            title={t('appearance.fontFamilyLabel') || 'Police'}
-            description={t('appearance.fontFamilyDescription') || "Choisissez la police de l'application"}
+            title={t('appearance.fontFamilyLabel')}
+            description={t('appearance.fontFamilyDescription')}
             value={fontFamily}
             options={[
               { value: 'inter', label: t('appearance.fontInterDefault') },
               { value: 'playfair', label: t('appearance.fontPlayfairDisplay') },
               { value: 'jetbrains', label: t('appearance.fontJetBrainsMono') },
-              { value: 'system', label: t('appearance.fontSystem') || 'Système' },
+              { value: 'system', label: t('appearance.fontSystem') },
             ]}
             onChange={handleFontFamilyChange}
           />
diff --git a/memento-note/app/(main)/settings/general/general-settings-client.tsx b/memento-note/app/(main)/settings/general/general-settings-client.tsx
index 805d6cc..cb1fd0d 100644
--- a/memento-note/app/(main)/settings/general/general-settings-client.tsx
+++ b/memento-note/app/(main)/settings/general/general-settings-client.tsx
@@ -32,12 +32,12 @@ export function GeneralSettingsClient({ initialSettings }: GeneralSettingsClient
     if (value === 'auto') {
       localStorage.removeItem('user-language')
       document.cookie = 'user-language=;path=/;max-age=0'
-      toast.success(t('settings.languageAuto') || 'Language set to Auto')
+      toast.success(t('settings.languageAuto'))
     } else {
       localStorage.setItem('user-language', value)
       document.cookie = `user-language=${value};path=/;max-age=${60 * 60 * 24 * 365};samesite=lax`
       setContextLanguage(value as any)
-      toast.success(t('profile.languageUpdateSuccess') || 'Language updated')
+      toast.success(t('profile.languageUpdateSuccess'))
     }
     setTimeout(() => router.refresh(), 300)
   }
@@ -45,19 +45,19 @@ export function GeneralSettingsClient({ initialSettings }: GeneralSettingsClient
   const handleEmailNotificationsChange = async (enabled: boolean) => {
     setEmailNotifications(enabled)
     await updateAISettings({ emailNotifications: enabled })
-    toast.success(t('settings.settingsSaved') || 'Saved')
+    toast.success(t('settings.settingsSaved'))
   }
 
   const handleDesktopNotificationsChange = async (enabled: boolean) => {
     setDesktopNotifications(enabled)
     await updateAISettings({ desktopNotifications: enabled })
-    toast.success(t('settings.settingsSaved') || 'Saved')
+    toast.success(t('settings.settingsSaved'))
   }
 
   const handleAutoSaveChange = async (enabled: boolean) => {
     setAutoSave(enabled)
     await updateAISettings({ autoSave: enabled })
-    toast.success(t('settings.settingsSaved') || 'Saved')
+    toast.success(t('settings.settingsSaved'))
   }
 
   return (
@@ -89,21 +89,21 @@ export function GeneralSettingsClient({ initialSettings }: GeneralSettingsClient
               className="w-full bg-white/50 dark:bg-black/40 border border-border rounded-xl px-5 py-3.5 text-sm outline-none focus:ring-1 ring-brand-accent/20 appearance-none cursor-pointer transition-all hover:bg-white dark:hover:bg-black/60 text-ink font-medium"
             >
               <option value="auto">{t('profile.autoDetect')}</option>
-              <option value="en">English</option>
-              <option value="fr">Français</option>
-              <option value="es">Español</option>
-              <option value="de">Deutsch</option>
-              <option value="fa">فارسی</option>
-              <option value="it">Italiano</option>
-              <option value="pt">Português</option>
-              <option value="ru">Русский</option>
-              <option value="zh">中文</option>
-              <option value="ja">日本語</option>
-              <option value="ko">한국어</option>
-              <option value="ar">العربية</option>
-              <option value="hi">हिन्दी</option>
-              <option value="nl">Nederlands</option>
-              <option value="pl">Polski</option>
+              <option value="en">{t('languages.en')}</option>
+              <option value="fr">{t('languages.fr')}</option>
+              <option value="es">{t('languages.es')}</option>
+              <option value="de">{t('languages.de')}</option>
+              <option value="fa">{t('languages.fa')}</option>
+              <option value="it">{t('languages.it')}</option>
+              <option value="pt">{t('languages.pt')}</option>
+              <option value="ru">{t('languages.ru')}</option>
+              <option value="zh">{t('languages.zh')}</option>
+              <option value="ja">{t('languages.ja')}</option>
+              <option value="ko">{t('languages.ko')}</option>
+              <option value="ar">{t('languages.ar')}</option>
+              <option value="hi">{t('languages.hi')}</option>
+              <option value="nl">{t('languages.nl')}</option>
+              <option value="pl">{t('languages.pl')}</option>
             </select>
             <div className="absolute right-5 top-1/2 -translate-y-1/2 pointer-events-none opacity-40 text-concrete">
               <svg width="10" height="6" viewBox="0 0 10 6" fill="none">
@@ -159,8 +159,8 @@ export function GeneralSettingsClient({ initialSettings }: GeneralSettingsClient
 
             <div className="flex items-center justify-between pt-6">
               <div className="space-y-1">
-                <p className="text-xs font-bold text-ink">{t('settings.autoSave') || 'Auto-Save'}</p>
-                <p className="text-[10px] text-concrete leading-relaxed">{t('settings.autoSaveDesc') || 'Sauvegarder automatiquement les modifications'}</p>
+                <p className="text-xs font-bold text-ink">{t('settings.autoSave')}</p>
+                <p className="text-[10px] text-concrete leading-relaxed">{t('settings.autoSaveDesc')}</p>
               </div>
               <label className="relative inline-flex items-center cursor-pointer">
                 <input
diff --git a/memento-note/app/(main)/settings/profile/profile-form.tsx b/memento-note/app/(main)/settings/profile/profile-form.tsx
index fccdfc3..800f70b 100644
--- a/memento-note/app/(main)/settings/profile/profile-form.tsx
+++ b/memento-note/app/(main)/settings/profile/profile-form.tsx
@@ -121,14 +121,14 @@ export function ProfileForm({ user }: { user: { name: string | null; email: stri
           {/* Preferences */}
           <div className="space-y-4">
             <h4 className="text-[10px] font-bold uppercase tracking-[0.2em] text-concrete opacity-60">
-              {t('profile.preferences') || 'Préférences de compte'}
+              {t('profile.preferences')}
             </h4>
             <div className="p-4 bg-white/40 dark:bg-white/5 border border-border rounded-2xl flex items-center justify-between">
               <div className="flex items-center gap-4">
                 <Bell size={18} className="text-concrete" />
                 <div>
-                  <p className="text-sm text-ink">{t('profile.desktopNotifications') || 'Notification bureau'}</p>
-                  <p className="text-[10px] text-concrete font-light pe-4">{t('profile.desktopNotificationsDesc') || 'Recevez des alertes pour vos rappels et activités IA.'}</p>
+                  <p className="text-sm text-ink">{t('profile.desktopNotifications')}</p>
+                  <p className="text-[10px] text-concrete font-light pe-4">{t('profile.desktopNotificationsDesc')}</p>
                 </div>
               </div>
               <button
@@ -147,7 +147,7 @@ export function ProfileForm({ user }: { user: { name: string | null; email: stri
               className="flex items-center gap-3 px-6 py-3 bg-rose-50 dark:bg-rose-500/10 text-rose-600 rounded-xl font-bold uppercase tracking-widest text-[10px] hover:bg-rose-100 transition-colors"
             >
               <LogOut size={16} />
-              {t('sidebar.signOut') || 'Déconnexion'}
+              {t('sidebar.signOut')}
             </button>
           </div>
         </div>
diff --git a/memento-note/app/(main)/trash/trash-client.tsx b/memento-note/app/(main)/trash/trash-client.tsx
index 4a0e1bf..ddd290b 100644
--- a/memento-note/app/(main)/trash/trash-client.tsx
+++ b/memento-note/app/(main)/trash/trash-client.tsx
@@ -62,7 +62,7 @@ export function TrashClient({
     const all: TrashItem[] = [
       ...notes.map(n => ({
         id: n.id,
-        title: n.title || t('notes.untitled') || 'Untitled',
+        title: n.title || t('notes.untitled'),
         itemType: 'note' as const,
         deletedAt: (n as any).trashedAt || null,
         content: n.content,
@@ -101,9 +101,9 @@ export function TrashClient({
         await restoreNb(item.id)
         setNotebooks(prev => prev.filter((nb: any) => nb.id !== item.id))
       }
-      toast.success(t('trash.restoreSuccess') || 'Restored successfully')
+      toast.success(t('trash.restoreSuccess'))
     } catch {
-      toast.error(t('trash.restoreError') || 'Failed to restore')
+      toast.error(t('trash.restoreError'))
     }
   }
 
@@ -116,22 +116,22 @@ export function TrashClient({
         await permDeleteNb(item.id)
         setNotebooks(prev => prev.filter((nb: any) => nb.id !== item.id))
       }
-      toast.success(t('trash.permanentDeleteSuccess') || 'Permanently deleted')
+      toast.success(t('trash.permanentDeleteSuccess'))
     } catch {
-      toast.error(t('trash.deleteError') || 'Failed to delete')
+      toast.error(t('trash.deleteError'))
     }
   }
 
   const handleEmptyTrash = async () => {
-    if (!window.confirm(t('trash.emptyTrashConfirm') || 'Empty trash? This is irreversible.')) return
+    if (!window.confirm(t('trash.emptyTrashConfirm'))) return
     setIsEmptying(true)
     try {
       await emptyTrash()
       setNotes([])
       setNotebooks([])
-      toast.success(t('trash.emptyTrashSuccess') || 'Trash emptied')
+      toast.success(t('trash.emptyTrashSuccess'))
     } catch {
-      toast.error(t('trash.deleteError') || 'Failed to empty trash')
+      toast.error(t('trash.deleteError'))
     } finally {
       setIsEmptying(false)
     }
@@ -143,10 +143,10 @@ export function TrashClient({
         <div className="flex items-center justify-between">
           <div className="space-y-1">
             <h1 className="text-4xl font-memento-serif font-medium text-foreground flex items-center gap-4">
-              {t('sidebar.trash') || 'Trash'} <Trash2 size={28} className="text-rose-400 opacity-40" />
+              {t('sidebar.trash')} <Trash2 size={28} className="text-rose-400 opacity-40" />
             </h1>
             <p className="text-[10px] text-muted-foreground font-bold uppercase tracking-[0.3em] opacity-60">
-              {t('trash.autoDelete30') || 'Auto-delete after 30 days'}
+              {t('trash.autoDelete30')}
             </p>
           </div>
 
@@ -156,7 +156,7 @@ export function TrashClient({
               disabled={isEmptying}
               className="px-6 py-3 bg-card border border-border text-rose-500 rounded-2xl text-[10px] font-bold uppercase tracking-widest hover:bg-rose-50 hover:border-rose-100 transition-all shadow-sm disabled:opacity-50"
             >
-              {t('trash.emptyTrash') || 'Empty all'}
+              {t('trash.emptyTrash')}
             </button>
           )}
         </div>
@@ -166,7 +166,7 @@ export function TrashClient({
             <Search className="absolute left-4 top-1/2 -translate-y-1/2 text-muted-foreground group-focus-within:text-foreground transition-colors" size={16} />
             <input
               type="text"
-              placeholder={t('common.search') || 'Search...'}
+              placeholder={t('common.search')}
               value={searchQuery}
               onChange={(e) => setSearchQuery(e.target.value)}
               className="w-full bg-white dark:bg-white/5 border border-border/40 rounded-2xl pl-12 pr-6 py-4 text-sm outline-none focus:ring-4 ring-foreground/5 transition-all shadow-sm"
@@ -181,7 +181,7 @@ export function TrashClient({
                 className={`px-6 py-3 rounded-xl text-[10px] font-bold uppercase tracking-widest transition-all
                   ${filterType === type ? 'bg-foreground text-background shadow-lg' : 'text-muted-foreground hover:text-foreground'}`}
               >
-                {type === 'all' ? (t('trash.filterAll') || 'All') : type === 'notes' ? (t('nav.notes') || 'Notes') : (t('nav.notebooks') || 'Notebooks')}
+                {type === 'all' ? t('trash.filterAll') : type === 'notes' ? t('nav.notes') : t('nav.notebooks')}
               </button>
             ))}
           </div>
@@ -220,12 +220,12 @@ export function TrashClient({
                           onClick={() => handleRestore(item)}
                           className="flex items-center gap-2 px-4 py-2 bg-emerald-50 text-emerald-600 rounded-xl text-[10px] font-bold uppercase tracking-widest hover:bg-emerald-100 transition-colors"
                         >
-                          <RotateCcw size={12} /> {t('trash.restore') || 'Restore'}
+                          <RotateCcw size={12} /> {t('trash.restore')}
                         </button>
                         <button
                           onClick={() => handlePermanentDelete(item)}
                           className="p-2 hover:bg-rose-50 text-rose-500 rounded-xl transition-colors"
-                          title={t('trash.permanentDelete') || 'Delete permanently'}
+                          title={t('trash.permanentDelete')}
                         >
                           <X size={16} />
                         </button>
@@ -238,7 +238,7 @@ export function TrashClient({
                       </h3>
                       <div className="flex items-center gap-3">
                         <div className={`text-[9px] font-bold uppercase tracking-widest px-2 py-0.5 rounded border ${daysLeft < 5 ? 'border-rose-200 text-rose-500 bg-rose-50' : 'border-terreo/20 text-terreo bg-terreo/5'}`}>
-                          {daysLeft} {t('trash.daysRemaining') || 'DAYS LEFT'}
+                          {daysLeft} {t('trash.daysRemaining')}
                         </div>
                         {item.deletedAt && (
                           <span className="text-[10px] text-muted-foreground font-medium uppercase tracking-tight flex items-center gap-1">
@@ -255,7 +255,7 @@ export function TrashClient({
                     ) : (
                       <div className="border-t border-border/40 pt-4">
                         <div className="text-[9px] font-bold text-muted-foreground/40 uppercase tracking-widest">
-                          {t('trash.notebookContentPreserved') || 'Notebook content preserved'}
+                          {t('trash.notebookContentPreserved')}
                         </div>
                       </div>
                     )}
@@ -271,10 +271,10 @@ export function TrashClient({
             </div>
             <div className="space-y-2">
               <h2 className="text-2xl font-memento-serif text-foreground italic">
-                {t('trash.empty') || 'Trash is empty'}
+                {t('trash.empty')}
               </h2>
               <p className="text-sm text-muted-foreground max-w-xs">
-                {t('trash.emptyDescription') || 'Deleted items will appear here. They are kept for 30 days before permanent deletion.'}
+                {t('trash.emptyDescription')}
               </p>
             </div>
           </div>
@@ -284,7 +284,7 @@ export function TrashClient({
       <footer className="px-12 py-6 bg-white/50 dark:bg-white/5 border-t border-border flex items-center gap-4">
         <AlertCircle size={14} className="text-muted-foreground" />
         <p className="text-[10px] text-muted-foreground font-medium uppercase tracking-widest">
-          {t('trash.notebookRestoreHint') || 'Restoring a notebook also restores all its notes.'}
+          {t('trash.notebookRestoreHint')}
         </p>
       </footer>
     </div>
diff --git a/memento-note/components/ai-chat.tsx b/memento-note/components/ai-chat.tsx
index 8045455..5e820fc 100644
--- a/memento-note/components/ai-chat.tsx
+++ b/memento-note/components/ai-chat.tsx
@@ -58,13 +58,9 @@ export function AIChat({ showFloatingTrigger = true }: { showFloatingTrigger?: b
         if (parsed.error === 'QUOTA_EXCEEDED') {
           const isBasic = (parsed.currentTier || 'BASIC') === 'BASIC'
           toast.error(
-            language === 'fr'
-              ? isBasic
-                ? 'Le chat IA est réservé au plan PRO et supérieur.'
-                : `Limite mensuelle atteinte pour le plan ${parsed.currentTier}. Elle se réinitialise le mois prochain.`
-              : isBasic
-                ? 'AI Chat is available from the PRO plan onwards.'
-                : `Monthly quota reached for ${parsed.currentTier} plan. It will reset next month.`,
+            isBasic
+              ? t('chat.quotaExceededBasic')
+              : t('chat.quotaExceededTier', { tier: parsed.currentTier }),
             { duration: 8000 }
           )
           return
diff --git a/memento-note/components/brainstorm/activity-feed.tsx b/memento-note/components/brainstorm/activity-feed.tsx
index ce4ae77..1bfb507 100644
--- a/memento-note/components/brainstorm/activity-feed.tsx
+++ b/memento-note/components/brainstorm/activity-feed.tsx
@@ -40,7 +40,7 @@ function getActionLabel(action: string, t: (key: string) => string | undefined):
 function timeAgo(dateStr: string, t: (key: string) => string | undefined): string {
   const diff = Date.now() - new Date(dateStr).getTime()
   const mins = Math.floor(diff / 60000)
-  if (mins < 1) return t('brainstorm.justNow') || 'just now'
+  if (mins < 1) return t('brainstorm.justNow')
   if (mins < 60) return `${mins}m`
   const hours = Math.floor(mins / 60)
   if (hours < 24) return `${hours}h`
@@ -63,7 +63,7 @@ export function ActivityFeed({ activities, isOpen, onToggle, t }: ActivityFeedPr
             <div className="flex items-center gap-2">
               <Activity size={14} className="text-orange-500" />
               <h3 className="text-[10px] font-bold uppercase tracking-[0.2em] text-foreground">
-                {t('brainstorm.activityTitle') || 'Activity'}
+                {t('brainstorm.activityTitle')}
               </h3>
             </div>
             <button
@@ -78,7 +78,7 @@ export function ActivityFeed({ activities, isOpen, onToggle, t }: ActivityFeedPr
             {activities.length === 0 ? (
               <div className="p-6 text-center">
                 <p className="text-xs italic text-muted-foreground">
-                  {t('brainstorm.noActivity') || 'No activity yet'}
+                  {t('brainstorm.noActivity')}
                 </p>
               </div>
             ) : (
diff --git a/memento-note/components/brainstorm/brainstorm-page.tsx b/memento-note/components/brainstorm/brainstorm-page.tsx
index faf8921..6cfa07a 100644
--- a/memento-note/components/brainstorm/brainstorm-page.tsx
+++ b/memento-note/components/brainstorm/brainstorm-page.tsx
@@ -289,7 +289,7 @@ export function BrainstormPage() {
             </motion.div>
             <div className="flex-1">
               <h1 className="text-4xl font-serif font-medium text-foreground tracking-tight">
-                {t('brainstorm.title') || 'Waves of Thought'}
+                {t('brainstorm.title')}
               </h1>
               <div className="flex items-center gap-2 mt-1">
                 <span className="w-8 h-px bg-brand-accent/40" />
diff --git a/memento-note/components/home-client.tsx b/memento-note/components/home-client.tsx
index 7925983..abe0c20 100644
--- a/memento-note/components/home-client.tsx
+++ b/memento-note/components/home-client.tsx
@@ -185,7 +185,7 @@ export function HomeClient({ initialNotes, initialSettings }: HomeClientProps) {
         handleNoteCreated(newNote)
         setEditingNote({ note: newNote, readOnly: false })
       } catch {
-        toast.error(t('notes.createFailed') || 'Failed to create note')
+        toast.error(t('notes.createFailed'))
       }
     })
   }
@@ -429,10 +429,10 @@ export function HomeClient({ initialNotes, initialSettings }: HomeClientProps) {
   }, [sortedNotes])
 
   const sortLabels: Record<SortOrder, string> = {
-    newest: t('sidebar.sortNewest') || 'Plus récentes',
-    oldest: t('sidebar.sortOldest') || 'Plus anciennes',
-    alpha: t('sidebar.sortAlpha') || 'A → Z',
-    manual: t('sidebar.sortManual') || 'Libre',
+    newest: t('sidebar.sortNewest'),
+    oldest: t('sidebar.sortOldest'),
+    alpha: t('sidebar.sortAlpha'),
+    manual: t('sidebar.sortManual'),
   }
 
 
@@ -495,9 +495,9 @@ export function HomeClient({ initialNotes, initialSettings }: HomeClientProps) {
                   {currentNotebook 
                     ? currentNotebook.name 
                     : searchParams.get('shared') === '1' 
-                      ? (t('sidebar.sharedWithMe') || 'Partagées avec moi')
+                      ? t('sidebar.sharedWithMe')
                       : searchParams.get('reminders') === '1'
-                        ? (t('sidebar.reminders') || 'Rappels')
+                        ? t('sidebar.reminders')
                         : t('notes.title')}
                 </h1>
               </div>
@@ -511,7 +511,7 @@ export function HomeClient({ initialNotes, initialSettings }: HomeClientProps) {
                   className="flex items-center gap-2 text-[13px] text-foreground font-medium hover:opacity-70 transition-opacity"
                 >
                   <Plus size={16} />
-                  <span>{t('notes.newNote') || 'Add Note'}</span>
+                  <span>{t('notes.newNote')}</span>
                 </button>
 
                 {currentNotebook && (
@@ -520,7 +520,7 @@ export function HomeClient({ initialNotes, initialSettings }: HomeClientProps) {
                     className="flex items-center gap-2 text-[13px] text-foreground font-medium hover:opacity-70 transition-opacity"
                   >
                     <FolderOpen size={16} />
-                    <span>{t('notebook.createSubNotebook') || 'Nouveau sous-carnet'}</span>
+                    <span>{t('notebook.createSubNotebook')}</span>
                   </button>
                 )}
 
@@ -558,7 +558,7 @@ export function HomeClient({ initialNotes, initialSettings }: HomeClientProps) {
                           router.push(`/home?${params.toString()}`)
                         }
                       }}
-                      placeholder={t('search.placeholder') || 'Rechercher...'}
+                      placeholder={t('search.placeholder')}
                       className="w-48 bg-transparent border-b border-foreground/20 focus:border-foreground outline-none text-[13px] text-foreground placeholder:text-muted-foreground/50 py-0.5 transition-colors"
                     />
                     {inlineSearchQuery && (
@@ -585,7 +585,7 @@ export function HomeClient({ initialNotes, initialSettings }: HomeClientProps) {
                     className="flex items-center gap-2 text-[13px] text-foreground font-medium hover:opacity-70 transition-opacity"
                   >
                     <Search size={16} />
-                    <span>{t('notes.search') || 'Search'}</span>
+                    <span>{t('notes.search')}</span>
                   </button>
                 )}
 
@@ -595,7 +595,7 @@ export function HomeClient({ initialNotes, initialSettings }: HomeClientProps) {
                     className="flex items-center gap-2 text-[13px] text-foreground font-medium hover:opacity-70 transition-opacity"
                   >
                     <Sparkles size={16} />
-                    <span>{t('notes.reorganize') || 'Réorganiser les notes'}</span>
+                    <span>{t('notes.reorganize')}</span>
                   </button>
                 )}
 
@@ -622,7 +622,7 @@ export function HomeClient({ initialNotes, initialSettings }: HomeClientProps) {
                     title={initialSettings.aiAssistantEnabled ? t('notebook.summary') : t('notebook.assistantRequiredForSummarize')}
                   >
                     <FileText size={16} />
-                    <span>{t('notebook.summary') || 'Summarize'}</span>
+                    <span>{t('notebook.summary')}</span>
                   </button>
                 )}
                 <button
@@ -640,7 +640,7 @@ export function HomeClient({ initialNotes, initialSettings }: HomeClientProps) {
                 <div className="flex items-center justify-between">
                   <div className="flex items-center gap-3 text-[10px] font-bold uppercase tracking-[0.2em] text-muted-foreground">
                     <TagIcon size={12} />
-                    <span>{t('labels.filterByTags') || 'Filter by Tags'}</span>
+                    <span>{t('labels.filterByTags')}</span>
                     {selectedTagIds.length > 0 && (
                       <span className="bg-brand-accent/10 text-brand-accent px-2 py-0.5 rounded-full text-[9px] lowercase tracking-normal">
                         {selectedTagIds.length} active
@@ -650,7 +650,7 @@ export function HomeClient({ initialNotes, initialSettings }: HomeClientProps) {
                   {availableTags.length > 10 && (
                     <input
                       type="text"
-                      placeholder={t('labels.searchTags') || 'Search tags...'}
+                      placeholder={t('labels.searchTags')}
                       className="bg-transparent border-b border-foreground/10 text-[10px] outline-none focus:border-brand-accent/40 py-1 px-2 w-32 transition-all focus:w-48 placeholder:text-muted-foreground/40"
                       value={tagSearchQuery}
                       onChange={e => setTagSearchQuery(e.target.value)}
@@ -696,7 +696,7 @@ export function HomeClient({ initialNotes, initialSettings }: HomeClientProps) {
                       className="px-3 py-1.5 text-[10px] font-bold uppercase tracking-wider text-muted-foreground/60 hover:text-foreground transition-colors border border-dashed border-border rounded-full"
                     >
                       {isTagsExpanded
-                        ? (t('labels.showLess') || 'Show less')
+                        ? t('labels.showLess')
                         : `+ ${availableTags.length - 10} more`}
                     </button>
                   )}
@@ -706,7 +706,7 @@ export function HomeClient({ initialNotes, initialSettings }: HomeClientProps) {
                       onClick={() => setSelectedTagIds([])}
                       className="px-3 py-1.5 text-[10px] font-bold uppercase tracking-wider text-red-500 hover:underline ms-auto"
                     >
-                      {t('labels.clearAll') || 'Clear all'}
+                      {t('labels.clearAll')}
                     </button>
                   )}
                 </div>
@@ -745,14 +745,14 @@ export function HomeClient({ initialNotes, initialSettings }: HomeClientProps) {
                 {notes.length === 0 && (
                   <div className="h-64 flex flex-col items-center justify-center text-center space-y-4">
                     <p className="font-memento-serif text-xl italic text-muted-foreground">
-                      {t('notes.emptyState') || 'This notebook is waiting for its first vision.'}
+                      {t('notes.emptyState')}
                     </p>
                     <button
                       onClick={handleAddNote}
                       disabled={isCreating}
                       className="px-6 py-2 border border-foreground text-[13px] uppercase tracking-[0.2em] hover:bg-foreground hover:text-background transition-all"
                     >
-                      {t('notes.createFirst') || 'Begin Drawing'}
+                      {t('notes.createFirst')}
                     </button>
                   </div>
                 )}
diff --git a/memento-note/components/legal/cookie-preferences-dialog.tsx b/memento-note/components/legal/cookie-preferences-dialog.tsx
new file mode 100644
index 0000000..38f0d2b
--- /dev/null
+++ b/memento-note/components/legal/cookie-preferences-dialog.tsx
@@ -0,0 +1,126 @@
+'use client'
+
+import { useEffect, useState } from 'react'
+import { useLanguage } from '@/lib/i18n'
+import {
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+} from '@/components/ui/dialog'
+import { getConsent, setConsent } from '@/lib/consent/cookie-consent'
+import { toast } from 'sonner'
+
+interface CookiePreferencesDialogProps {
+  open: boolean
+  onOpenChange: (open: boolean) => void
+}
+
+export function CookiePreferencesDialog({ open, onOpenChange }: CookiePreferencesDialogProps) {
+  const { t } = useLanguage()
+  const [analytics, setAnalytics] = useState(false)
+
+  useEffect(() => {
+    if (!open) return
+    const current = getConsent()
+    setAnalytics(current?.analytics ?? false)
+  }, [open])
+
+  const handleSave = () => {
+    setConsent({ analytics, marketing: false })
+    toast.success(t('consent.preferences.saved'))
+    onOpenChange(false)
+  }
+
+  return (
+    <Dialog open={open} onOpenChange={onOpenChange}>
+      <DialogContent className="max-w-lg border-border bg-memento-paper dark:bg-background">
+        <DialogHeader>
+          <DialogTitle className="font-memento-serif text-xl text-ink">
+            {t('consent.preferences.title')}
+          </DialogTitle>
+          <DialogDescription className="text-[11px] text-concrete leading-relaxed">
+            {t('consent.preferences.description')}
+          </DialogDescription>
+        </DialogHeader>
+
+        <motionless className="space-y-6 py-2">
+          <CategoryRow
+            title={t('consent.preferences.necessaryTitle')}
+            description={t('consent.preferences.necessaryDesc')}
+            locked
+            checked
+          />
+          <CategoryRow
+            title={t('consent.preferences.analyticsTitle')}
+            description={t('consent.preferences.analyticsDesc')}
+            checked={analytics}
+            onChange={setAnalytics}
+          />
+        </motionless>
+
+        <DialogFooter className="gap-2 sm:gap-2">
+          <button
+            type="button"
+            onClick={() => onOpenChange(false)}
+            className="px-5 py-2.5 text-[10px] font-bold uppercase tracking-[0.2em] text-concrete hover:text-ink transition-colors"
+          >
+            {t('common.cancel')}
+          </button>
+          <button
+            type="button"
+            onClick={handleSave}
+            className="px-6 py-2.5 bg-foreground text-background rounded-xl text-[10px] font-bold uppercase tracking-[0.2em] hover:opacity-90 transition-opacity"
+          >
+            {t('consent.preferences.save')}
+          </button>
+        </DialogFooter>
+      </DialogContent>
+    </Dialog>
+  )
+}
+
+function CategoryRow({
+  title,
+  description,
+  checked,
+  onChange,
+  locked,
+}: {
+  title: string
+  description: string
+  checked: boolean
+  onChange?: (v: boolean) => void
+  locked?: boolean
+}) {
+  return (
+    <motionless className="flex items-start justify-between gap-4 border-b border-border/40 pb-5 last:border-0 last:pb-0">
+      <div className="space-y-1 pe-4">
+        <p className="text-xs font-bold text-ink">{title}</p>
+        <p className="text-[10px] text-concrete leading-relaxed">{description}</p>
+        {locked && (
+          <p className="text-[9px] font-bold uppercase tracking-widest text-concrete/80">
+            {title.includes('—') ? '' : ''}
+          </p>
+        )}
+      </motionless>
+      <label className={`relative inline-flex shrink-0 items-center ${locked ? 'opacity-50 pointer-events-none' : 'cursor-pointer'}`}>
+        <input
+          type="checkbox"
+          className="sr-only peer"
+          checked={checked}
+          disabled={locked}
+          onChange={(e) => onChange?.(e.target.checked)}
+        />
+        <motionless className="w-11 h-6 bg-gray-200 dark:bg-white/10 rounded-full peer peer-checked:after:translate-x-[20px] after:content-[''] after:absolute after:top-[4px] after:left-[4px] after:bg-white after:rounded-full after:h-4 after:w-4 after:transition-all peer-checked:bg-ink" />
+      </label>
+    </motionless>
+  )
+}
+
+/** Avoid pulling motion into dialog — plain wrapper */
+function motionless({ children, className }: { children: React.ReactNode; className?: string }) {
+  return <motionless className={className}>{children}</motionless>
+}
diff --git a/memento-note/components/note-actions.tsx b/memento-note/components/note-actions.tsx
index ed1003d..1ba77a6 100644
--- a/memento-note/components/note-actions.tsx
+++ b/memento-note/components/note-actions.tsx
@@ -234,7 +234,7 @@ export function NoteActions({
             <DropdownMenuItem onClick={onOpenHistory}>
               <History className="h-4 w-4 mr-2" />
               {historyEnabled
-                ? (t('notes.history') || 'Historique')
+                ? t('notes.history')
                 : (t('notes.enableHistory') || "Activer l'historique")}
             </DropdownMenuItem>
           )}
diff --git a/memento-note/components/note-card.tsx b/memento-note/components/note-card.tsx
index 16c8c87..ad6fead 100644
--- a/memento-note/components/note-card.tsx
+++ b/memento-note/components/note-card.tsx
@@ -351,9 +351,9 @@ export const NoteCard = memo(function NoteCard({
       refreshNotes(note?.notebookId)
 
       if (!note.isPinned) {
-        toast.success(t('notes.pinned') || 'Note pinned')
+        toast.success(t('notes.pinned'))
       } else {
-        toast.info(t('notes.unpinned') || 'Note unpinned')
+        toast.info(t('notes.unpinned'))
       }
     })
   }
@@ -483,8 +483,8 @@ export const NoteCard = memo(function NoteCard({
       {/* Drag Handle - Only visible on mobile/touch devices */}
       <div
         className="muuri-drag-handle absolute top-2 start-2 z-20 cursor-grab active:cursor-grabbing p-2 md:hidden"
-        aria-label={t('notes.dragToReorder') || 'Drag to reorder'}
-        title={t('notes.dragToReorder') || 'Drag to reorder'}
+        aria-label={t('notes.dragToReorder')}
+        title={t('notes.dragToReorder')}
       >
         <GripVertical className="h-5 w-5 text-muted-foreground" />
       </div>
@@ -563,7 +563,7 @@ export const NoteCard = memo(function NoteCard({
              <DropdownMenuSeparator />
              <DropdownMenuItem className="text-muted-foreground" onSelect={() => onCreateSubNotebook?.()}>
                <Plus className="h-4 w-4 me-2" />
-               {t('notebook.createSubNotebook') || 'Nouveau sous-carnet…'}
+               {t('notebook.createSubNotebook')}
              </DropdownMenuItem>
           </DropdownMenuContent>
         </DropdownMenu>
@@ -605,7 +605,7 @@ export const NoteCard = memo(function NoteCard({
           <button
             onClick={handleRemoveFusedBadge}
             className="ms-1 opacity-0 group-hover/badge:opacity-100 hover:opacity-100 transition-opacity"
-            title={t('notes.remove') || 'Remove'}
+            title={t('notes.remove')}
           >
             <Trash2 className="h-2.5 w-2.5" />
           </button>
@@ -873,13 +873,13 @@ export const NoteCard = memo(function NoteCard({
           <AlertDialogHeader>
             <AlertDialogTitle>{t('notes.confirmDeleteTitle') || t('notes.delete')}</AlertDialogTitle>
             <AlertDialogDescription>
-              {t('notes.confirmDelete') || 'Are you sure you want to delete this note?'}
+              {t('notes.confirmDelete')}
             </AlertDialogDescription>
           </AlertDialogHeader>
           <AlertDialogFooter>
-            <AlertDialogCancel>{t('common.cancel') || 'Cancel'}</AlertDialogCancel>
+            <AlertDialogCancel>{t('common.cancel')}</AlertDialogCancel>
             <AlertDialogAction variant="destructive" onClick={handleDelete}>
-              {t('notes.delete') || 'Delete'}
+              {t('notes.delete')}
             </AlertDialogAction>
           </AlertDialogFooter>
         </AlertDialogContent>
diff --git a/memento-note/components/note-history-modal.tsx b/memento-note/components/note-history-modal.tsx
index a1bec5d..e2ab8c7 100644
--- a/memento-note/components/note-history-modal.tsx
+++ b/memento-note/components/note-history-modal.tsx
@@ -48,6 +48,7 @@ function fmtDate(date: Date | string, language: string): string {
 }
 
 function VersionPreview({ entry, language }: { entry: NoteHistoryEntry; language: string }) {
+  const { t } = useLanguage()
   const isMd = entry.type === 'markdown' || entry.isMarkdown
   const isCl = entry.type === 'checklist'
   const isRt = entry.type === 'richtext'
@@ -56,15 +57,15 @@ function VersionPreview({ entry, language }: { entry: NoteHistoryEntry; language
     <div className="space-y-4">
       <div>
         <p className="text-[11px] font-semibold uppercase tracking-wider text-muted-foreground mb-1">
-          {language === 'fr' ? 'Titre' : 'Title'}
+          {t('noteHistory.title')}
         </p>
         <p className="text-sm text-foreground font-medium">
-          {entry.title || (language === 'fr' ? 'Sans titre' : 'Untitled')}
+          {entry.title || t('noteHistory.untitled')}
         </p>
       </div>
       <div>
         <p className="text-[11px] font-semibold uppercase tracking-wider text-muted-foreground mb-1">
-          {language === 'fr' ? 'Contenu' : 'Content'}
+          {t('noteHistory.content')}
         </p>
         <div className="rounded-md border border-border/70 bg-muted/30 p-3 text-sm text-foreground overflow-auto max-h-[48vh]">
           {isCl && entry.checkItems ? (
diff --git a/memento-note/components/settings/billing-plans.tsx b/memento-note/components/settings/billing-plans.tsx
index 1e4481c..6b318ea 100644
--- a/memento-note/components/settings/billing-plans.tsx
+++ b/memento-note/components/settings/billing-plans.tsx
@@ -222,7 +222,7 @@ export function BillingPlans() {
       buttonClass: effectiveTier === 'ENTERPRISE'
         ? 'bg-paper text-concrete cursor-default'
         : 'bg-ink text-white shadow-xl shadow-ink/20 hover:scale-[1.02] active:scale-95',
-      onClick: () => { window.location.href = 'mailto:sales@momento.app'; },
+      onClick: () => { window.location.href = 'mailto:sales@memento-note.com'; },
     },
   ];
 
diff --git a/memento-note/components/sidebar.tsx b/memento-note/components/sidebar.tsx
index 8ebc754..ebfb7f1 100644
--- a/memento-note/components/sidebar.tsx
+++ b/memento-note/components/sidebar.tsx
@@ -298,21 +298,21 @@ function SidebarCarnetItem({
               <button
                 onClick={(e) => { e.stopPropagation(); onAddSubNotebook() }}
                 className="p-1 hover:bg-ink/10 rounded-md transition-all text-concrete hover:text-ink"
-                title={t('notebook.createSubNotebook') || 'Add sub-carnet'}
+                title={t('notebook.createSubNotebook')}
               >
                 <Plus size={10} />
               </button>
               <button
                 onClick={(e) => { e.stopPropagation(); onRename() }}
                 className="p-1 hover:bg-ink/10 rounded-md transition-all text-concrete hover:text-ink"
-                title={t('notebook.rename') || 'Rename'}
+                title={t('notebook.rename')}
               >
                 <Pencil size={10} />
               </button>
               <button
                 onClick={(e) => { e.stopPropagation(); onDelete() }}
                 className="p-1 hover:bg-rose-50 rounded-md transition-all text-concrete hover:text-rose-500"
-                title={t('notebook.delete') || 'Delete'}
+                title={t('notebook.delete')}
               >
                 <Trash2 size={10} />
               </button>
@@ -399,7 +399,7 @@ function SidebarCarnetItem({
                 ))}
                 {isActive && notes.length === 0 && !hasChildren && (
                   <p className="ps-8 py-2 text-[10px] italic text-muted-foreground/40 font-light">
-                    {t('common.noResults') || 'No notes found'}
+                    {t('common.noResults')}
                   </p>
                 )}
               </div>
@@ -583,7 +583,7 @@ export function Sidebar({ className, user }: { className?: string; user?: any })
     try {
       await moveNotebookToParent(dragId, targetId)
     } catch (err) {
-      toast.error(err instanceof Error ? err.message : t('sidebar.moveFailed') || 'Failed to move notebook')
+      toast.error(err instanceof Error ? err.message : t('sidebar.moveFailed'))
       setOrderedNotebooks(sortedNotebooks)
     }
   }
@@ -602,7 +602,7 @@ export function Sidebar({ className, user }: { className?: string; user?: any })
     try {
       await moveNotebookToParent(dragId, null)
     } catch (err) {
-      toast.error(err instanceof Error ? err.message : t('sidebar.moveFailed') || 'Failed to move notebook')
+      toast.error(err instanceof Error ? err.message : t('sidebar.moveFailed'))
       setOrderedNotebooks(sortedNotebooks)
     }
   }
@@ -835,14 +835,14 @@ export function Sidebar({ className, user }: { className?: string; user?: any })
                 <DropdownMenuItem asChild>
                   <Link href="/settings/profile" className="flex items-center gap-2 cursor-pointer">
                     <User className="h-4 w-4" />
-                    {t('sidebar.profile') || 'Profil'}
+                    {t('sidebar.profile')}
                   </Link>
                 </DropdownMenuItem>
                 {(user as { role?: string } | undefined)?.role === 'ADMIN' && (
                   <DropdownMenuItem asChild>
                     <a href="/admin" className="flex items-center gap-2 cursor-pointer">
                       <Shield className="h-4 w-4" />
-                      {t('nav.adminDashboard') || 'Administration'}
+                      {t('nav.adminDashboard')}
                     </a>
                   </DropdownMenuItem>
                 )}
@@ -852,7 +852,7 @@ export function Sidebar({ className, user }: { className?: string; user?: any })
                   onClick={() => signOut({ callbackUrl: '/login' })}
                 >
                   <LogOut className="h-4 w-4 me-2" />
-                  {t('sidebar.signOut') || 'Se déconnecter'}
+                  {t('sidebar.signOut')}
                 </DropdownMenuItem>
               </DropdownMenuContent>
             </DropdownMenu>
@@ -873,7 +873,7 @@ export function Sidebar({ className, user }: { className?: string; user?: any })
               <button
                 onClick={() => { router.push('/home') }}
                 className="p-1.5 text-muted-ink hover:text-ink transition-all hover:bg-white/50 dark:hover:bg-white/10 rounded-lg border border-transparent hover:border-border"
-                title={t('nav.home') || 'Accueil'}
+                title={t('nav.home')}
               >
                 <Home size={14} />
               </button>
@@ -1016,7 +1016,7 @@ export function Sidebar({ className, user }: { className?: string; user?: any })
                     <div
                       className="h-10 rounded-lg border-2 border-dashed border-brand-accent/20 flex items-center justify-center text-[11px] text-brand-accent/50"
                     >
-                      {t('sidebar.dropToRoot') || 'Drop here to move to root'}
+                      {t('sidebar.dropToRoot')}
                     </div>
                   )}
                 </div>
@@ -1034,7 +1034,7 @@ export function Sidebar({ className, user }: { className?: string; user?: any })
                 </p>
                 <div className="px-4 py-8 text-center border border-dashed border-border rounded-2xl bg-paper/30">
                   <Clock size={24} className="mx-auto text-concrete/40 mb-3" />
-                  <p className="text-[11px] text-concrete italic">{t('sidebar.noReminders') || 'No active reminders.'}</p>
+                  <p className="text-[11px] text-concrete italic">{t('sidebar.noReminders')}</p>
                 </div>
               </motion.div>
             ) : activeView === 'agents' ? (
@@ -1118,7 +1118,7 @@ export function Sidebar({ className, user }: { className?: string; user?: any })
               )}
             >
               <Users size={14} className={searchParams.get('shared') === '1' && pathname === '/home' ? 'text-accent' : 'text-muted-ink group-hover:text-ink'} />
-              <span>{t('sidebar.sharedWithMe') || 'Shared'}</span>
+              <span>{t('sidebar.sharedWithMe')}</span>
             </Link>
 
             <Link
@@ -1175,7 +1175,7 @@ export function Sidebar({ className, user }: { className?: string; user?: any })
               onClick={(e) => e.stopPropagation()}
             >
               <h3 className="text-sm font-semibold mb-4 font-memento-serif">
-                {t('notebook.rename') || 'Rename notebook'}
+                {t('notebook.rename')}
               </h3>
               <input
                 autoFocus
@@ -1183,7 +1183,7 @@ export function Sidebar({ className, user }: { className?: string; user?: any })
                 onChange={(e) => setRenameValue(e.target.value)}
                 onKeyDown={(e) => { if (e.key === 'Enter') handleConfirmRename(); if (e.key === 'Escape') setRenamingNotebook(null) }}
                 className="w-full px-3 py-2 text-sm border border-border rounded-lg bg-transparent focus:outline-none focus:ring-2 focus:ring-foreground/20"
-                placeholder={t('notebook.namePlaceholder') || 'Notebook name'}
+                placeholder={t('notebook.namePlaceholder')}
               />
               <div className="flex justify-end gap-2 mt-4">
                 <button
@@ -1191,14 +1191,14 @@ export function Sidebar({ className, user }: { className?: string; user?: any })
                   disabled={isRenaming}
                   className="px-4 py-1.5 text-xs font-medium text-muted-foreground hover:text-foreground transition-colors rounded-lg"
                 >
-                  {t('common.cancel') || 'Cancel'}
+                  {t('common.cancel')}
                 </button>
                 <button
                   onClick={handleConfirmRename}
                   disabled={isRenaming || !renameValue.trim()}
                   className="px-4 py-1.5 text-xs font-medium bg-foreground text-background rounded-lg hover:opacity-90 transition-opacity disabled:opacity-50"
                 >
-                  {isRenaming ? '...' : (t('common.confirm') || 'Rename')}
+                  {isRenaming ? '...' : t('notebook.confirmRename')}
                 </button>
               </div>
             </motion.div>
@@ -1228,7 +1228,7 @@ export function Sidebar({ className, user }: { className?: string; user?: any })
                 <Trash2 size={16} className="text-red-500" />
               </div>
               <h3 className="text-sm font-semibold mb-1 font-memento-serif">
-                {t('notebook.trashTitle') || 'Move to trash'}
+                {t('notebook.trashTitle')}
               </h3>
               <p className="text-xs text-muted-foreground mb-4">
                 {t('notebook.trashConfirm', { name: deletingNotebook.name }) || `Move "${deletingNotebook.name}" to trash? You can restore it within 30 days.`}
@@ -1244,14 +1244,14 @@ export function Sidebar({ className, user }: { className?: string; user?: any })
                   disabled={isDeleting}
                   className="px-4 py-1.5 text-xs font-medium text-muted-foreground hover:text-foreground transition-colors rounded-lg"
                 >
-                  {t('common.cancel') || 'Cancel'}
+                  {t('common.cancel')}
                 </button>
                 <button
                   onClick={handleConfirmDelete}
                   disabled={isDeleting}
                   className="px-4 py-1.5 text-xs font-medium bg-red-500 text-white rounded-lg hover:bg-red-600 transition-colors disabled:opacity-50"
                 >
-                  {isDeleting ? '...' : (t('notebook.moveToTrash') || 'Move to trash')}
+                  {isDeleting ? '...' : t('notebook.moveToTrash')}
                 </button>
               </div>
             </motion.div>
diff --git a/memento-note/components/usage-meter.tsx b/memento-note/components/usage-meter.tsx
index a3f5fe0..1f85db1 100644
--- a/memento-note/components/usage-meter.tsx
+++ b/memento-note/components/usage-meter.tsx
@@ -188,7 +188,7 @@ export function UsageMeter({ className }: UsageMeterProps) {
                       onClick={(e) => { e.stopPropagation(); router.push('/settings/billing'); }}
                       className="w-full mt-2 py-2 bg-brand-accent/10 hover:bg-brand-accent text-brand-accent hover:text-white text-[9px] font-bold uppercase tracking-widest rounded-xl transition-all duration-300 border border-brand-accent/20"
                     >
-                      {t('usageMeter.upgradePricing') || 'Passer à Pro'}
+                      {t('usageMeter.upgradePricing')}
                     </button>
                   )}
                 </div>
diff --git a/memento-note/hooks/use-cookie-consent.ts b/memento-note/hooks/use-cookie-consent.ts
new file mode 100644
index 0000000..f70a379
--- /dev/null
+++ b/memento-note/hooks/use-cookie-consent.ts
@@ -0,0 +1,40 @@
+'use client'
+
+import { useCallback, useEffect, useState } from 'react'
+import {
+  CONSENT_CHANGE_EVENT,
+  getConsent,
+  hasConsentChoice,
+  type ConsentRecord,
+} from '@/lib/consent/cookie-consent'
+
+export function useCookieConsent() {
+  const [consent, setConsentState] = useState<ConsentRecord | null>(null)
+  const [ready, setReady] = useState(false)
+
+  const refresh = useCallback(() => {
+    setConsentState(getConsent())
+    setReady(true)
+  }, [])
+
+  useEffect(() => {
+    refresh()
+    const onChange = () => refresh()
+    const onStorage = (e: StorageEvent) => {
+      if (e.key === 'memento-consent-v1') refresh()
+    }
+    window.addEventListener(CONSENT_CHANGE_EVENT, onChange)
+    window.addEventListener('storage', onStorage)
+    return () => {
+      window.removeEventListener(CONSENT_CHANGE_EVENT, onChange)
+      window.removeEventListener('storage', onStorage)
+    }
+  }, [refresh])
+
+  return {
+    consent,
+    ready,
+    hasChoice: ready && hasConsentChoice(),
+    needsBanner: ready && !hasConsentChoice(),
+  }
+}
diff --git a/memento-note/lib/analytics/track.ts b/memento-note/lib/analytics/track.ts
new file mode 100644
index 0000000..8b6c7e6
--- /dev/null
+++ b/memento-note/lib/analytics/track.ts
@@ -0,0 +1,17 @@
+/**
+ * Analytics choke-point — all product analytics must go through these helpers.
+ * New third-party scripts in app/ must check hasAnalyticsConsent() before loading.
+ */
+import { hasAnalyticsConsent } from '@/lib/consent/cookie-consent'
+
+export type AnalyticsEventProperties = Record<string, string | number | boolean | null | undefined>
+
+export function trackClientEvent(_event: string, _properties?: AnalyticsEventProperties): void {
+  if (!hasAnalyticsConsent()) return
+  // Future: PostHog/Umami client capture (see saas-deployment-prep.md §D)
+}
+
+export function trackServerEvent(_event: string, _properties?: AnalyticsEventProperties): void {
+  if (!hasAnalyticsConsent()) return
+  // Future: server-side analytics capture
+}
diff --git a/memento-note/lib/consent/cookie-consent.ts b/memento-note/lib/consent/cookie-consent.ts
new file mode 100644
index 0000000..36e6068
--- /dev/null
+++ b/memento-note/lib/consent/cookie-consent.ts
@@ -0,0 +1,112 @@
+export const CONSENT_VERSION = 1 as const
+export const CONSENT_STORAGE_KEY = 'memento-consent-v1'
+export const CONSENT_COOKIE_NAME = 'memento-cookie-consent'
+const CONSENT_COOKIE_MAX_AGE = 60 * 60 * 24 * 365
+
+export type ConsentRecord = {
+  version: typeof CONSENT_VERSION
+  necessary: true
+  analytics: boolean
+  marketing: boolean
+  updatedAt: string
+}
+
+export const CONSENT_CHANGE_EVENT = 'memento-consent-change'
+export const OPEN_COOKIE_PREFERENCES_EVENT = 'memento-open-cookie-preferences'
+
+function isBrowser(): boolean {
+  return typeof window !== 'undefined'
+}
+
+function parseRecord(raw: unknown): ConsentRecord | null {
+  if (!raw || typeof raw !== 'object') return null
+  const o = raw as Partial<ConsentRecord>
+  if (o.version !== CONSENT_VERSION) return null
+  if (o.necessary !== true) return null
+  if (typeof o.analytics !== 'boolean' || typeof o.marketing !== 'boolean') return null
+  if (typeof o.updatedAt !== 'string') return null
+  return {
+    version: CONSENT_VERSION,
+    necessary: true,
+    analytics: o.analytics,
+    marketing: o.marketing,
+    updatedAt: o.updatedAt,
+  }
+}
+
+function readCookie(): ConsentRecord | null {
+  if (!isBrowser()) return null
+  const match = document.cookie
+    .split(';')
+    .map((s) => s.trim())
+    .find((s) => s.startsWith(`${CONSENT_COOKIE_NAME}=`))
+  if (!match) return null
+  try {
+    const encoded = match.slice(CONSENT_COOKIE_NAME.length + 1)
+    const json = decodeURIComponent(atob(encoded))
+    return parseRecord(JSON.parse(json))
+  } catch {
+    return null
+  }
+}
+
+function writeCookie(record: ConsentRecord): void {
+  if (!isBrowser()) return
+  const encoded = btoa(encodeURIComponent(JSON.stringify(record)))
+  document.cookie = `${CONSENT_COOKIE_NAME}=${encoded};path=/;max-age=${CONSENT_COOKIE_MAX_AGE};samesite=lax`
+}
+
+export function getConsent(): ConsentRecord | null {
+  if (!isBrowser()) return null
+  try {
+    const fromStorage = localStorage.getItem(CONSENT_STORAGE_KEY)
+    if (fromStorage) {
+      const parsed = parseRecord(JSON.parse(fromStorage))
+      if (parsed) return parsed
+    }
+  } catch {
+    // ignore corrupt storage
+  }
+  return readCookie()
+}
+
+export function hasConsentChoice(): boolean {
+  return getConsent() !== null
+}
+
+export function hasAnalyticsConsent(): boolean {
+  return getConsent()?.analytics === true
+}
+
+export function hasMarketingConsent(): boolean {
+  return getConsent()?.marketing === true
+}
+
+export function setConsent(partial: Pick<ConsentRecord, 'analytics' | 'marketing'>): ConsentRecord {
+  const record: ConsentRecord = {
+    version: CONSENT_VERSION,
+    necessary: true,
+    analytics: partial.analytics,
+    marketing: partial.marketing,
+    updatedAt: new Date().toISOString(),
+  }
+  if (isBrowser()) {
+    localStorage.setItem(CONSENT_STORAGE_KEY, JSON.stringify(record))
+    writeCookie(record)
+    window.dispatchEvent(new CustomEvent(CONSENT_CHANGE_EVENT, { detail: record }))
+  }
+  return record
+}
+
+export function acceptEssentialsOnly(): ConsentRecord {
+  return setConsent({ analytics: false, marketing: false })
+}
+
+export function acceptAllOptional(): ConsentRecord {
+  return setConsent({ analytics: true, marketing: false })
+}
+
+export function openCookiePreferences(): void {
+  if (!isBrowser()) return
+  window.dispatchEvent(new CustomEvent(OPEN_COOKIE_PREFERENCES_EVENT))
+}
diff --git a/memento-note/locales/ar.json b/memento-note/locales/ar.json
index 53f51e5..f817437 100644
--- a/memento-note/locales/ar.json
+++ b/memento-note/locales/ar.json
@@ -49,8 +49,8 @@
     "sortOldest": "الأقدم أولاً",
     "sortAlpha": "أ → ز",
     "accountMenu": "قائمة الحساب",
-    "profile": "حساب تعريفي",
-    "signOut": "تسجيل الخروج",
+    "profile": "Profile",
+    "signOut": "Sign out",
     "sortOrder": "ترتيب الترتيب",
     "freezePinnedNotebook": "تثبيت ترتيب الشريط الجانبي للكمبيوتر الدفتري",
     "unfreezePinnedNotebook": "قم بإزالة تثبيت ترتيب الشريط الجانبي للكمبيوتر الدفتري",
@@ -58,14 +58,15 @@
     "renameNotebook": "إعادة تسمية",
     "sharedNotebookBadge": "· Shared",
     "sortManual": "ترتيب حر",
-    "moveFailed": "فشل نقل دفتر الملاحظات",
-    "dropToRoot": "أفلت هنا للنقل إلى الجذر"
+    "moveFailed": "Failed to move notebook",
+    "dropToRoot": "Drop here to move to root",
+    "noReminders": "No active reminders."
   },
   "notes": {
     "title": "الملاحظات",
     "newNote": "ملاحظة جديدة",
     "reorganize": "إعادة تنظيم الملاحظات",
-    "untitled": "بدون عنوان",
+    "untitled": "Untitled",
     "placeholder": "اكتب ملاحظة...",
     "markdownPlaceholder": "اكتب ملاحظة... (Markdown مدعوم)",
     "titlePlaceholder": "العنوان",
@@ -81,12 +82,12 @@
     "add": "إضافة",
     "adding": "جاري الإضافة...",
     "close": "إغلاق",
-    "confirmDelete": "هل أنت متأكد أنك تريد حذف هذه الملاحظة؟",
+    "confirmDelete": "Are you sure you want to delete this note?",
     "confirmLeaveShare": "هل أنت متأكد أنك تريد مغادرة هذه الملاحظة المشتركة؟",
     "sharedBy": "شاركها",
     "sharedShort": "مشترك",
     "leaveShare": "مغادرة",
-    "delete": "حذف",
+    "delete": "Delete",
     "archive": "أرشفة",
     "unarchive": "إلغاء الأرشفة",
     "pin": "تثبيت",
@@ -127,7 +128,7 @@
     "duplicate": "نسخ",
     "share": "مشاركة",
     "showCollaborators": "إظهار المتعاونين",
-    "pinned": "مثبتة",
+    "pinned": "Note pinned",
     "others": "أخرى",
     "noNotes": "لا توجد ملاحظات",
     "noNotesFound": "لم يتم العثور على ملاحظات",
@@ -159,8 +160,8 @@
     "recent": "الحديثة",
     "addNote": "إضافة ملاحظة",
     "readMore": "اقرأ المزيد",
-    "remove": "إزالة",
-    "dragToReorder": "اسحب لإعادة الترتيب",
+    "remove": "Remove",
+    "dragToReorder": "Drag to reorder",
     "more": "المزيد",
     "emptyState": "لا توجد ملاحظات",
     "metadataPanel": "تفاصيل",
@@ -173,7 +174,7 @@
     "improveFailed": "فشل التحسين",
     "transformFailed": "فشل التحويل",
     "markdown": "Markdown",
-    "unpinned": "غير مثبت",
+    "unpinned": "Note unpinned",
     "redoShortcut": "إعادة (Ctrl+Y)",
     "undoShortcut": "تراجع (Ctrl+Z)",
     "reorderTabs": "إعادة ترتيب علامة التبويب",
@@ -751,7 +752,7 @@
     "downloadFailed": "فشل التنزيل"
   },
   "nav": {
-    "home": "الرئيسية",
+    "home": "Home",
     "notes": "الملاحظات",
     "notebooks": "الدفاتر",
     "generalNotes": "الملاحظات العامة",
@@ -761,7 +762,7 @@
     "aiSettings": "إعدادات الذكاء الاصطناعي",
     "logout": "تسجيل الخروج",
     "login": "تسجيل الدخول",
-    "adminDashboard": "لوحة تحكم المشرف",
+    "adminDashboard": "Admin Dashboard",
     "diagnostics": "التشخيص",
     "trash": "المهملات",
     "support": "دعم Memento ☕",
@@ -786,7 +787,8 @@
     "proPlan": "خطة احترافية",
     "chat": "دردشة الذكاء الاصطناعي",
     "lab": "المختبر",
-    "agents": "الوكلاء"
+    "agents": "الوكلاء",
+    "sharedWithMe": "Shared with me"
   },
   "settings": {
     "title": "الإعدادات",
@@ -814,7 +816,7 @@
     "security": "الأمان",
     "about": "حول",
     "version": "الإصدار",
-    "settingsSaved": "تم حفظ الإعدادات",
+    "settingsSaved": "Settings saved",
     "cardSizeMode": "حجم الملاحظة",
     "cardSizeModeDescription": "اختر بين أحجام متغيرة أو حجم موحد",
     "selectCardSizeMode": "اختر وضع العرض",
@@ -835,14 +837,14 @@
     "semanticIndexingDescription": "إنشاء متجهات لجميع الملاحظات لتفعيل البحث القائم على النية",
     "profile": "الملف الشخصي",
     "searchNoResults": "لم يتم العثور على إعدادات مطابقة",
-    "languageAuto": "الكشف التلقائي",
+    "languageAuto": "Language set to Auto",
     "emailNotifications": "إشعارات البريد الإلكتروني",
     "emailNotificationsDesc": "تلقي إشعارات مهمة عبر البريد الإلكتروني",
     "desktopNotifications": "إشعارات سطح المكتب",
     "desktopNotificationsDesc": "تلقي إشعارات في المتصفح",
     "notificationsDesc": "إدارة تفضيلات الإشعارات",
-    "autoSave": "الحفظ التلقائي",
-    "autoSaveDesc": "حفظ التغييرات تلقائيًا أثناء الكتابة"
+    "autoSave": "Auto-save",
+    "autoSaveDesc": "Automatically save changes while typing"
   },
   "profile": {
     "title": "الملف الشخصي",
@@ -864,10 +866,10 @@
     "preferredLanguage": "اللغة المفضلة",
     "selectLanguage": "اختر لغة",
     "languageDescription": "سيتم استخدام هذه اللغة لميزات الذكاء الاصطناعي وتحليل المحتوى ونص الواجهة.",
-    "autoDetect": "الكشف التلقائي",
+    "autoDetect": "Auto-detect",
     "updateSuccess": "تم تحديث الملف الشخصي",
     "updateFailed": "فشل في تحديث الملف الشخصي",
-    "languageUpdateSuccess": "تم تحديث اللغة بنجاح",
+    "languageUpdateSuccess": "Language updated successfully",
     "languageUpdateFailed": "فشل في تحديث اللغة",
     "profileUpdated": "تم تحديث الملف الشخصي",
     "profileError": "خطأ في تحديث الملف الشخصي",
@@ -922,8 +924,8 @@
   },
   "general": {
     "loading": "جاري التحميل...",
-    "save": "حفظ",
-    "cancel": "إلغاء",
+    "save": "Save",
+    "cancel": "Cancel",
     "add": "إضافة",
     "edit": "تعديل",
     "confirm": "تأكيد",
@@ -984,7 +986,7 @@
     "createNew": "إنشاء دفتر جديد",
     "createDescription": "ابدأ مجموعة جديدة لتنظيم ملاحظاتك وأفكارك ومشاريعك بكفاءة.",
     "name": "اسم الدفتر",
-    "namePlaceholder": "مثال: استراتيجية التسويق الربع سنوية",
+    "namePlaceholder": "Notebook name",
     "myNotebook": "دفتري",
     "saving": "جاري الحفظ...",
     "selectIcon": "الأيقونة",
@@ -993,7 +995,7 @@
     "creating": "جاري الإنشاء...",
     "edit": "تحرير الدفتر",
     "editDescription": "تغيير اسم الدفتر وأيقونته ولونه.",
-    "delete": "حذف الدفتر",
+    "delete": "Delete",
     "deleteWarning": "هل أنت متأكد أنك تريد حذف هذا الدفتر؟ سيتم نقل الملاحظات إلى الملاحظات العامة.",
     "deleteConfirm": "حذف",
     "summary": "ملخص الدفتر",
@@ -1012,7 +1014,10 @@
     "pinnedFrozenTooltip": "دفتر ملاحظات مثبت — تم تجميد الطلب",
     "organizeNotebookWithAITooltip": "قم بتنظيم دفتر الملاحظات هذا باستخدام الذكاء الاصطناعي",
     "assistantRequiredForSummarize": "قم بتشغيل AI Assistant في الإعدادات للتلخيص",
-    "createSubnotebook": "إضافة دفتر فرعي"
+    "createSubnotebook": "إضافة دفتر فرعي",
+    "createSubNotebook": "Add sub-notebook",
+    "rename": "Rename",
+    "moveToTrash": "Move to trash"
   },
   "notebookSuggestion": {
     "title": "النقل إلى {name}؟",
@@ -1430,20 +1435,22 @@
   },
   "appearance": {
     "title": "المظهر",
-    "description": "تخصيص مظهر التطبيق",
+    "description": "Customize the interface",
     "notesViewDescription": "اختر كيفية عرض الملاحظات على الصفحة الرئيسية وفي الدفاتر.",
     "notesViewLabel": "عرض الملاحظات",
     "notesViewTabs": "علامات تبويب (نمط OneNote)",
     "notesViewMasonry": "بطاقات (شبكة)",
     "notesViewList": "قائمة (مجلة)",
-    "selectTheme": "اختر المظهر",
-    "fontFamilyLabel": "عائلة الخطوط",
-    "fontFamilyDescription": "اختر الخط المستخدم في جميع أنحاء التطبيق",
+    "selectTheme": "Choose your preferred theme",
+    "fontFamilyLabel": "Font",
+    "fontFamilyDescription": "Choose the application's font",
     "selectFontFamily": "Inter مُحسّن لسهولة القراءة، النظام يستخدم الخط الأصلي لنظام التشغيل",
-    "fontSystem": "الخط الافتراضي للنظام",
+    "fontSystem": "System",
     "fontInterDefault": "Inter (default)",
     "fontPlayfairDisplay": "Playfair Display",
-    "fontJetBrainsMono": "JetBrains Mono"
+    "fontJetBrainsMono": "JetBrains Mono",
+    "accentColorTitle": "Accent Color",
+    "accentColorDescription": "Set the main color of your workspace"
   },
   "generalSettings": {
     "title": "General",
@@ -1477,18 +1484,26 @@
   },
   "trash": {
     "title": "سلة المحذوفات",
-    "empty": "سلة المحذوفات فارغة",
-    "emptyDescription": "ستظهر الملاحظات المحذوفة هنا",
-    "restore": "استعادة",
+    "empty": "Trash is empty",
+    "emptyDescription": "Deleted items will appear here. They are kept for 30 days before permanent deletion.",
+    "restore": "Restore",
     "deletePermanently": "حذف نهائي",
     "noteTrashed": "تم نقل الملاحظة إلى سلة المحذوفات",
     "noteRestored": "تم استعادة الملاحظة",
     "notePermanentlyDeleted": "تم حذف الملاحظة نهائيًا",
     "emptyTrash": "إفراغ سلة المحذوفات",
-    "emptyTrashConfirm": "حذف جميع الملاحظات في سلة المحذوفات نهائيًا؟",
+    "emptyTrashConfirm": "Empty trash? This is irreversible.",
     "emptyTrashSuccess": "تم إفراغ سلة المحذوفات",
-    "permanentDelete": "حذف نهائي",
-    "permanentDeleteConfirm": "سيتم حذف هذه الملاحظة نهائيًا. لا يمكن التراجع عن هذا الإجراء."
+    "permanentDelete": "Delete permanently",
+    "permanentDeleteConfirm": "سيتم حذف هذه الملاحظة نهائيًا. لا يمكن التراجع عن هذا الإجراء.",
+    "restoreSuccess": "Restored successfully",
+    "restoreError": "Failed to restore",
+    "permanentDeleteSuccess": "Permanently deleted",
+    "deleteError": "Failed to delete",
+    "daysRemaining": "DAYS LEFT",
+    "notebookContentPreserved": "Notebook content preserved",
+    "notebookRestoreHint": "Restoring a notebook also restores all its notes.",
+    "filterAll": "All"
   },
   "footer": {
     "privacy": "الخصوصية",
@@ -1583,7 +1598,23 @@
       "chinese": "الصينية",
       "japanese": "اليابانية"
     },
-    "customPlaceholder": "على سبيل المثال العربية والروسية..."
+    "customPlaceholder": "على سبيل المثال العربية والروسية...",
+    "autoDetect": "Auto-detect",
+    "en": "English",
+    "fr": "Français",
+    "es": "Español",
+    "de": "Deutsch",
+    "fa": "فارسی",
+    "it": "Italiano",
+    "pt": "Português",
+    "ru": "Русский",
+    "zh": "中文",
+    "ja": "日本語",
+    "ko": "한국어",
+    "ar": "العربية",
+    "hi": "हिन्दी",
+    "nl": "Nederlands",
+    "pl": "Polski"
   },
   "common": {
     "unknown": "غير معروف",
@@ -1591,16 +1622,16 @@
     "loading": "جاري التحميل...",
     "error": "خطأ",
     "success": "نجاح",
-    "confirm": "تأكيد",
-    "cancel": "إلغاء",
+    "confirm": "Confirm",
+    "cancel": "Cancel",
     "close": "إغلاق",
     "save": "حفظ",
     "delete": "حذف",
     "edit": "تعديل",
     "add": "إضافة",
     "remove": "إزالة",
-    "search": "بحث",
-    "noResults": "لا توجد نتائج",
+    "search": "Search...",
+    "noResults": "No notes found",
     "required": "مطلوب",
     "optional": "اختياري"
   },
@@ -1982,7 +2013,9 @@
     "searching": "جاري البحث...",
     "noNotesFoundForContext": "لم يتم العثور على ملاحظات ذات صلة لهذا السؤال. أجب باستخدام معرفتك العامة.",
     "webSearch": "بحث الويب",
-    "timeoutWarning": "الاستجابة تستغرق وقتاً أطول من المتوقع..."
+    "timeoutWarning": "الاستجابة تستغرق وقتاً أطول من المتوقع...",
+    "quotaExceededBasic": "AI Chat is available from the PRO plan onwards.",
+    "quotaExceededTier": "Monthly quota reached for {tier} plan. It will reset next month."
   },
   "labHeader": {
     "title": "المختبر",
@@ -2550,5 +2583,13 @@
         "link2Href": "#"
       }
     }
+  },
+  "noteHistory": {
+    "title": "Title",
+    "content": "Content",
+    "untitled": "Untitled",
+    "emptyState": "No versions available",
+    "selectVersion": "Select a version to preview its content",
+    "currentVersion": "current"
   }
-}
+}
\ No newline at end of file
diff --git a/memento-note/locales/de.json b/memento-note/locales/de.json
index efadbd9..abbc69f 100644
--- a/memento-note/locales/de.json
+++ b/memento-note/locales/de.json
@@ -49,8 +49,8 @@
     "sortOldest": "Älteste zuerst",
     "sortAlpha": "A → Z",
     "accountMenu": "Kontomenü",
-    "profile": "Profil",
-    "signOut": "Abmelden",
+    "profile": "Profile",
+    "signOut": "Sign out",
     "sortOrder": "Sortierreihenfolge",
     "freezePinnedNotebook": "Pin-Reihenfolge in der Seitenleiste des Notizbuchs",
     "unfreezePinnedNotebook": "Pinnwandreihenfolge in der Notizbuch-Seitenleiste aufheben",
@@ -58,14 +58,15 @@
     "renameNotebook": "Umbenennen",
     "sharedNotebookBadge": "· Shared",
     "sortManual": "Freie Anordnung",
-    "moveFailed": "Verschieben fehlgeschlagen",
-    "dropToRoot": "Hier ablegen für Hauptebene"
+    "moveFailed": "Failed to move notebook",
+    "dropToRoot": "Drop here to move to root",
+    "noReminders": "No active reminders."
   },
   "notes": {
     "title": "Notizen",
     "newNote": "Neue Notiz",
     "reorganize": "Notizen neu organisieren",
-    "untitled": "Unbenannt",
+    "untitled": "Untitled",
     "placeholder": "Notiz machen...",
     "markdownPlaceholder": "Notiz machen... (Markdown unterstützt)",
     "titlePlaceholder": "Titel",
@@ -81,12 +82,12 @@
     "add": "Hinzufügen",
     "adding": "Wird hinzugefügt...",
     "close": "Schließen",
-    "confirmDelete": "Möchten Sie diese Notiz wirklich löschen?",
+    "confirmDelete": "Are you sure you want to delete this note?",
     "confirmLeaveShare": "Möchten Sie diese geteilte Notiz wirklich verlassen?",
     "sharedBy": "Geteilt von",
     "sharedShort": "Geteilt",
     "leaveShare": "Verlassen",
-    "delete": "Löschen",
+    "delete": "Delete",
     "archive": "Archivieren",
     "unarchive": "Aus Archiv entfernen",
     "pin": "Anheften",
@@ -127,7 +128,7 @@
     "duplicate": "Duplizieren",
     "share": "Teilen",
     "showCollaborators": "Mitarbeiter anzeigen",
-    "pinned": "Angeheftet",
+    "pinned": "Note pinned",
     "others": "Andere",
     "noNotes": "Keine Notizen",
     "noNotesFound": "Keine Notizen gefunden",
@@ -159,8 +160,8 @@
     "recent": "Aktuell",
     "addNote": "Notiz hinzufügen",
     "readMore": "Weiterlesen",
-    "remove": "Entfernen",
-    "dragToReorder": "Ziehen zum Neuanordnen",
+    "remove": "Remove",
+    "dragToReorder": "Drag to reorder",
     "more": "Mehr",
     "emptyState": "Keine Notizen vorhanden",
     "metadataPanel": "Einzelheiten",
@@ -173,7 +174,7 @@
     "improveFailed": "Verbesserung fehlgeschlagen",
     "transformFailed": "Umwandlung fehlgeschlagen",
     "markdown": "Markdown",
-    "unpinned": "Nicht angepinnt",
+    "unpinned": "Note unpinned",
     "redoShortcut": "Wiederholen (Strg+Y)",
     "undoShortcut": "Rückgängig (Strg+Z)",
     "reorderTabs": "Tab umsortieren",
@@ -751,7 +752,7 @@
     "downloadFailed": "Der Download ist fehlgeschlagen"
   },
   "nav": {
-    "home": "Startseite",
+    "home": "Home",
     "notes": "Notizen",
     "notebooks": "Notizbücher",
     "generalNotes": "Allgemeine Notizen",
@@ -761,7 +762,7 @@
     "aiSettings": "KI-Einstellungen",
     "logout": "Abmelden",
     "login": "Anmelden",
-    "adminDashboard": "Admin-Dashboard",
+    "adminDashboard": "Admin Dashboard",
     "diagnostics": "Diagnose",
     "trash": "Papierkorb",
     "support": "Memento unterstützen ☕",
@@ -786,7 +787,8 @@
     "proPlan": "Pro Plan",
     "chat": "KI-Chat",
     "lab": "Das Labor",
-    "agents": "Agenten"
+    "agents": "Agenten",
+    "sharedWithMe": "Shared with me"
   },
   "settings": {
     "title": "Einstellungen",
@@ -814,7 +816,7 @@
     "security": "Sicherheit",
     "about": "Über",
     "version": "Version",
-    "settingsSaved": "Einstellungen gespeichert",
+    "settingsSaved": "Settings saved",
     "cardSizeMode": "Note Size",
     "cardSizeModeDescription": "Choose between variable sizes or uniform size",
     "selectCardSizeMode": "Select display mode",
@@ -835,14 +837,14 @@
     "semanticIndexingDescription": "Generate vectors for all notes to enable intent-based search",
     "profile": "Profil",
     "searchNoResults": "Keine Ergebnisse gefunden",
-    "languageAuto": "Automatisch",
+    "languageAuto": "Language set to Auto",
     "emailNotifications": "E-Mail-Benachrichtigungen",
     "emailNotificationsDesc": "Wichtige Benachrichtigungen per E-Mail erhalten",
     "desktopNotifications": "Desktop-Benachrichtigungen",
     "desktopNotificationsDesc": "Benachrichtigungen im Browser erhalten",
     "notificationsDesc": "Verwalten Sie Ihre Benachrichtigungseinstellungen",
-    "autoSave": "Automatisch speichern",
-    "autoSaveDesc": "Änderungen während der Eingabe automatisch speichern"
+    "autoSave": "Auto-save",
+    "autoSaveDesc": "Automatically save changes while typing"
   },
   "profile": {
     "title": "Profil",
@@ -864,10 +866,10 @@
     "preferredLanguage": "Bevorzugte Sprache",
     "selectLanguage": "Sprache auswählen",
     "languageDescription": "Diese Sprache wird für KI-gesteuerte Funktionen, Inhaltsanalyse und Oberflächentext verwendet.",
-    "autoDetect": "Automatische Erkennung",
+    "autoDetect": "Auto-detect",
     "updateSuccess": "Profil aktualisiert",
     "updateFailed": "Fehler beim Aktualisieren des Profils",
-    "languageUpdateSuccess": "Sprache erfolgreich aktualisiert",
+    "languageUpdateSuccess": "Language updated successfully",
     "languageUpdateFailed": "Fehler beim Aktualisieren der Sprache",
     "profileUpdated": "Profil aktualisiert",
     "profileError": "Fehler beim Aktualisieren des Profils",
@@ -922,8 +924,8 @@
   },
   "general": {
     "loading": "Wird geladen...",
-    "save": "Speichern",
-    "cancel": "Abbrechen",
+    "save": "Save",
+    "cancel": "Cancel",
     "add": "Hinzufügen",
     "edit": "Bearbeiten",
     "confirm": "Bestätigen",
@@ -984,7 +986,7 @@
     "createNew": "Neues Notizbuch erstellen",
     "createDescription": "Starten Sie eine neue Sammlung, um Ihre Notizen, Ideen und Projekte effizient zu organisieren.",
     "name": "Notizbuch-Name",
-    "namePlaceholder": "z.B. Q4 Marketing-Strategie",
+    "namePlaceholder": "Notebook name",
     "myNotebook": "Mein Notizbuch",
     "saving": "Speichern...",
     "selectIcon": "Symbol",
@@ -993,7 +995,7 @@
     "creating": "Erstellen...",
     "edit": "Notizbuch bearbeiten",
     "editDescription": "Ändern Sie den Namen, das Symbol und die Farbe Ihres Notizbuchs.",
-    "delete": "Notizbuch löschen",
+    "delete": "Delete",
     "deleteWarning": "Möchten Sie dieses Notizbuch wirklich löschen? Notizen werden in Allgemeine Notizen verschoben.",
     "deleteConfirm": "Löschen",
     "summary": "Notizbuch-Zusammenfassung",
@@ -1012,7 +1014,10 @@
     "pinnedFrozenTooltip": "Angeheftetes Notizbuch – Bestellung eingefroren",
     "organizeNotebookWithAITooltip": "Organisieren Sie dieses Notizbuch mit KI",
     "assistantRequiredForSummarize": "Aktivieren Sie AI Assistant in den Einstellungen, um eine Zusammenfassung vorzunehmen",
-    "createSubnotebook": "Sub-Notebook hinzufügen"
+    "createSubnotebook": "Sub-Notebook hinzufügen",
+    "createSubNotebook": "Add sub-notebook",
+    "rename": "Rename",
+    "moveToTrash": "Move to trash"
   },
   "notebookSuggestion": {
     "title": "Nach {name} verschieben?",
@@ -1430,20 +1435,22 @@
   },
   "appearance": {
     "title": "Erscheinungsbild",
-    "description": "Anpassen, wie die App aussieht",
+    "description": "Customize the interface",
     "notesViewDescription": "Wählen Sie, wie Notizen auf der Startseite und in Notizbüchern angezeigt werden.",
     "notesViewLabel": "Notizen-Ansicht",
     "notesViewTabs": "Tabs (OneNote-Stil)",
     "notesViewMasonry": "Karten (Raster)",
     "notesViewList": "Liste (Magazin)",
-    "selectTheme": "Select theme",
-    "fontFamilyLabel": "Schriftfamilie",
-    "fontFamilyDescription": "Wählen Sie die im gesamten Programm verwendete Schriftart",
+    "selectTheme": "Choose your preferred theme",
+    "fontFamilyLabel": "Font",
+    "fontFamilyDescription": "Choose the application's font",
     "selectFontFamily": "Inter ist für Lesbarkeit optimiert, System verwendet die native Schriftart Ihres Betriebssystems",
-    "fontSystem": "Standardsystemschriftart",
+    "fontSystem": "System",
     "fontInterDefault": "Inter (default)",
     "fontPlayfairDisplay": "Playfair Display",
-    "fontJetBrainsMono": "JetBrains Mono"
+    "fontJetBrainsMono": "JetBrains Mono",
+    "accentColorTitle": "Accent Color",
+    "accentColorDescription": "Set the main color of your workspace"
   },
   "generalSettings": {
     "title": "General",
@@ -1477,18 +1484,26 @@
   },
   "trash": {
     "title": "Papierkorb",
-    "empty": "Der Papierkorb ist leer",
-    "emptyDescription": "Gelöschte Notizen werden hier angezeigt",
-    "restore": "Wiederherstellen",
+    "empty": "Trash is empty",
+    "emptyDescription": "Deleted items will appear here. They are kept for 30 days before permanent deletion.",
+    "restore": "Restore",
     "deletePermanently": "Dauerhaft löschen",
     "noteTrashed": "Notiz in den Papierkorb verschoben",
     "noteRestored": "Notiz wiederhergestellt",
     "notePermanentlyDeleted": "Notiz dauerhaft gelöscht",
     "emptyTrash": "Papierkorb leeren",
-    "emptyTrashConfirm": "Alle Notizen im Papierkorb dauerhaft löschen?",
+    "emptyTrashConfirm": "Empty trash? This is irreversible.",
     "emptyTrashSuccess": "Papierkorb geleert",
-    "permanentDelete": "Dauerhaft löschen",
-    "permanentDeleteConfirm": "Diese Notiz wird dauerhaft gelöscht. Diese Aktion kann nicht rückgängig gemacht werden."
+    "permanentDelete": "Delete permanently",
+    "permanentDeleteConfirm": "Diese Notiz wird dauerhaft gelöscht. Diese Aktion kann nicht rückgängig gemacht werden.",
+    "restoreSuccess": "Restored successfully",
+    "restoreError": "Failed to restore",
+    "permanentDeleteSuccess": "Permanently deleted",
+    "deleteError": "Failed to delete",
+    "daysRemaining": "DAYS LEFT",
+    "notebookContentPreserved": "Notebook content preserved",
+    "notebookRestoreHint": "Restoring a notebook also restores all its notes.",
+    "filterAll": "All"
   },
   "footer": {
     "privacy": "Datenschutz",
@@ -1583,7 +1598,23 @@
       "chinese": "chinesisch",
       "japanese": "japanisch"
     },
-    "customPlaceholder": "z.B. Arabisch, Russisch…"
+    "customPlaceholder": "z.B. Arabisch, Russisch…",
+    "autoDetect": "Auto-detect",
+    "en": "English",
+    "fr": "Français",
+    "es": "Español",
+    "de": "Deutsch",
+    "fa": "فارسی",
+    "it": "Italiano",
+    "pt": "Português",
+    "ru": "Русский",
+    "zh": "中文",
+    "ja": "日本語",
+    "ko": "한국어",
+    "ar": "العربية",
+    "hi": "हिन्दी",
+    "nl": "Nederlands",
+    "pl": "Polski"
   },
   "common": {
     "unknown": "Unbekannt",
@@ -1591,16 +1622,16 @@
     "loading": "Wird geladen...",
     "error": "Fehler",
     "success": "Erfolg",
-    "confirm": "Bestätigen",
-    "cancel": "Abbrechen",
+    "confirm": "Confirm",
+    "cancel": "Cancel",
     "close": "Schließen",
     "save": "Speichern",
     "delete": "Löschen",
     "edit": "Bearbeiten",
     "add": "Hinzufügen",
     "remove": "Entfernen",
-    "search": "Suchen",
-    "noResults": "Keine Ergebnisse",
+    "search": "Search...",
+    "noResults": "No notes found",
     "required": "Erforderlich",
     "optional": "Optional"
   },
@@ -1982,7 +2013,9 @@
     "searching": "Wird gesucht...",
     "noNotesFoundForContext": "Keine relevanten Notizen für diese Frage gefunden. Antworte mit deinem Allgemeinwissen.",
     "webSearch": "Websuche",
-    "timeoutWarning": "Response is taking longer than expected..."
+    "timeoutWarning": "Response is taking longer than expected...",
+    "quotaExceededBasic": "AI Chat is available from the PRO plan onwards.",
+    "quotaExceededTier": "Monthly quota reached for {tier} plan. It will reset next month."
   },
   "labHeader": {
     "title": "Das Labor",
@@ -2550,5 +2583,13 @@
         "link2Href": "#"
       }
     }
+  },
+  "noteHistory": {
+    "title": "Title",
+    "content": "Content",
+    "untitled": "Untitled",
+    "emptyState": "No versions available",
+    "selectVersion": "Select a version to preview its content",
+    "currentVersion": "current"
   }
-}
+}
\ No newline at end of file
diff --git a/memento-note/locales/en.json b/memento-note/locales/en.json
index ef288a3..e3950ed 100644
--- a/memento-note/locales/en.json
+++ b/memento-note/locales/en.json
@@ -66,7 +66,8 @@
     "sharedNotebookBadge": "· Shared",
     "sortManual": "Custom order",
     "moveFailed": "Failed to move notebook",
-    "dropToRoot": "Drop here to move to root"
+    "dropToRoot": "Drop here to move to root",
+    "noReminders": "No active reminders."
   },
   "notes": {
     "title": "Notes",
@@ -789,7 +790,8 @@
     "proPlan": "Pro Plan",
     "chat": "AI Chat",
     "lab": "The Workshop",
-    "agents": "Agents"
+    "agents": "Agents",
+    "sharedWithMe": "Shared with me"
   },
   "settings": {
     "title": "Settings",
@@ -891,7 +893,10 @@
     "showRecentNotesDescription": "Display recent notes (last 7 days) on the main page",
     "recentNotesUpdateSuccess": "Recent notes setting updated successfully",
     "recentNotesUpdateFailed": "Failed to update recent notes setting",
-    "tab": "Profile"
+    "tab": "Profile",
+    "preferences": "Account Preferences",
+    "desktopNotifications": "Desktop notifications",
+    "desktopNotificationsDesc": "Receive alerts for your reminders and AI activities."
   },
   "aiSettings": {
     "title": "AI",
@@ -988,7 +993,7 @@
     "createNew": "Create New Notebook",
     "createDescription": "Start a new collection to organize your notes, ideas, and projects efficiently.",
     "name": "Notebook Name",
-    "namePlaceholder": "e.g. Q4 Marketing Strategy",
+    "namePlaceholder": "Notebook name",
     "myNotebook": "My Notebook",
     "saving": "Saving...",
     "selectIcon": "Icon",
@@ -997,7 +1002,7 @@
     "creating": "Creating...",
     "edit": "Edit Notebook",
     "editDescription": "Change the name, icon, and color of your notebook.",
-    "delete": "Delete Notebook",
+    "delete": "Delete",
     "deleteWarning": "Are you sure you want to delete this notebook? Notes will be moved to General Notes.",
     "deleteConfirm": "Delete",
     "summary": "Notebook Summary",
@@ -1016,7 +1021,10 @@
     "pinnedFrozenTooltip": "Pinned notebook — order frozen",
     "organizeNotebookWithAITooltip": "Organize this notebook with AI",
     "assistantRequiredForSummarize": "Turn on AI Assistant in settings to summarize",
-    "createSubnotebook": "Add sub-notebook"
+    "createSubnotebook": "Add sub-notebook",
+    "createSubNotebook": "Add sub-notebook",
+    "rename": "Rename",
+    "confirmRename": "Rename"
   },
   "notebookSuggestion": {
     "title": "Move to {name}?",
@@ -1435,21 +1443,23 @@
   },
   "appearance": {
     "title": "Appearance",
-    "description": "Customize how the app looks",
+    "description": "Customize the interface",
     "notesViewDescription": "Choose how notes are shown on home and in notebooks.",
     "notesViewLabel": "Notes layout",
     "notesViewTabs": "Tabs (OneNote-style)",
     "notesViewMasonry": "Cards (grid)",
     "notesViewList": "List (magazine)",
-    "selectTheme": "Select theme",
-    "fontFamilyLabel": "Font Family",
-    "fontFamilyDescription": "Choose the font used throughout the app",
+    "selectTheme": "Choose your preferred theme",
+    "fontFamilyLabel": "Font",
+    "fontFamilyDescription": "Choose the application's font",
     "selectFontFamily": "Inter is optimized for readability, System uses your OS native font",
-    "fontSystem": "System Default",
+    "fontSystem": "System",
     "fontInterDefault": "Inter (default)",
     "fontPlayfairDisplay": "Playfair Display",
     "fontJetBrainsMono": "JetBrains Mono",
-    "tab": "Appearance"
+    "tab": "Appearance",
+    "accentColorTitle": "Accent Color",
+    "accentColorDescription": "Set the main color of your workspace"
   },
   "usageMeter": {
     "packName": "AI Discovery Pack",
@@ -1507,18 +1517,26 @@
   },
   "trash": {
     "title": "Trash",
-    "empty": "The trash is empty",
-    "emptyDescription": "Deleted notes will appear here",
+    "empty": "Trash is empty",
+    "emptyDescription": "Deleted items will appear here. They are kept for 30 days before permanent deletion.",
     "restore": "Restore",
     "deletePermanently": "Delete Permanently",
     "noteTrashed": "Note moved to trash",
     "noteRestored": "Note restored",
     "notePermanentlyDeleted": "Note permanently deleted",
     "emptyTrash": "Empty Trash",
-    "emptyTrashConfirm": "Permanently delete all notes in the trash?",
+    "emptyTrashConfirm": "Empty trash? This is irreversible.",
     "emptyTrashSuccess": "Trash emptied",
-    "permanentDelete": "Delete Permanently",
-    "permanentDeleteConfirm": "This note will be permanently deleted. This action cannot be undone."
+    "permanentDelete": "Delete permanently",
+    "permanentDeleteConfirm": "This note will be permanently deleted. This action cannot be undone.",
+    "restoreSuccess": "Restored successfully",
+    "restoreError": "Failed to restore",
+    "permanentDeleteSuccess": "Permanently deleted",
+    "deleteError": "Failed to delete",
+    "daysRemaining": "DAYS LEFT",
+    "notebookContentPreserved": "Notebook content preserved",
+    "notebookRestoreHint": "Restoring a notebook also restores all its notes.",
+    "filterAll": "All"
   },
   "footer": {
     "privacy": "Privacy",
@@ -1613,7 +1631,23 @@
       "chinese": "Chinese",
       "japanese": "Japanese"
     },
-    "customPlaceholder": "e.g. Arabic, Russian…"
+    "customPlaceholder": "e.g. Arabic, Russian…",
+    "autoDetect": "Auto-detect",
+    "en": "English",
+    "fr": "Français",
+    "es": "Español",
+    "de": "Deutsch",
+    "fa": "فارسی",
+    "it": "Italiano",
+    "pt": "Português",
+    "ru": "Русский",
+    "zh": "中文",
+    "ja": "日本語",
+    "ko": "한국어",
+    "ar": "العربية",
+    "hi": "हिन्दी",
+    "nl": "Nederlands",
+    "pl": "Polski"
   },
   "common": {
     "unknown": "Unknown",
@@ -1629,8 +1663,8 @@
     "edit": "Edit",
     "add": "Add",
     "remove": "Remove",
-    "search": "Search",
-    "noResults": "No results",
+    "search": "Search...",
+    "noResults": "No notes found",
     "required": "Required",
     "optional": "Optional"
   },
@@ -2012,7 +2046,9 @@
     "searching": "Searching...",
     "noNotesFoundForContext": "No relevant notes found for this question. Answer with your general knowledge.",
     "webSearch": "Web Search",
-    "timeoutWarning": "Response is taking longer than expected..."
+    "timeoutWarning": "Response is taking longer than expected...",
+    "quotaExceededBasic": "AI Chat is available from the PRO plan onwards.",
+    "quotaExceededTier": "Monthly quota reached for {tier} plan. It will reset next month."
   },
   "labHeader": {
     "title": "The Workshop",
@@ -2562,5 +2598,13 @@
         "link2Href": "#"
       }
     }
+  },
+  "noteHistory": {
+    "title": "Title",
+    "content": "Content",
+    "untitled": "Untitled",
+    "emptyState": "No versions available",
+    "selectVersion": "Select a version to preview its content",
+    "currentVersion": "current"
   }
-}
+}
\ No newline at end of file
diff --git a/memento-note/locales/es.json b/memento-note/locales/es.json
index 7222fbe..6e9ee1d 100644
--- a/memento-note/locales/es.json
+++ b/memento-note/locales/es.json
@@ -49,8 +49,8 @@
     "sortOldest": "El más viejo primero",
     "sortAlpha": "A → Z",
     "accountMenu": "Menú de cuenta",
-    "profile": "Perfil",
-    "signOut": "desconectar",
+    "profile": "Profile",
+    "signOut": "Sign out",
     "sortOrder": "orden de clasificación",
     "freezePinnedNotebook": "Orden de fijación de la barra lateral del cuaderno",
     "unfreezePinnedNotebook": "Desanclar el orden de la barra lateral del cuaderno",
@@ -58,14 +58,15 @@
     "renameNotebook": "Rebautizar",
     "sharedNotebookBadge": "· Shared",
     "sortManual": "Orden libre",
-    "moveFailed": "Error al mover el cuaderno",
-    "dropToRoot": "Soltar aquí para mover a la raíz"
+    "moveFailed": "Failed to move notebook",
+    "dropToRoot": "Drop here to move to root",
+    "noReminders": "No active reminders."
   },
   "notes": {
     "title": "Notas",
     "newNote": "Nueva nota",
     "reorganize": "Reorganizar notas",
-    "untitled": "Sin título",
+    "untitled": "Untitled",
     "placeholder": "Toma una nota...",
     "markdownPlaceholder": "Toma una nota... (Markdown compatible)",
     "titlePlaceholder": "Título",
@@ -81,12 +82,12 @@
     "add": "Agregar",
     "adding": "Agregando...",
     "close": "Cerrar",
-    "confirmDelete": "¿Estás seguro de que quieres eliminar esta nota?",
+    "confirmDelete": "Are you sure you want to delete this note?",
     "confirmLeaveShare": "¿Estás seguro de que quieres abandonar esta nota compartida?",
     "sharedBy": "Compartido por",
     "sharedShort": "Compartido",
     "leaveShare": "Abandonar",
-    "delete": "Eliminar",
+    "delete": "Delete",
     "archive": "Archivar",
     "unarchive": "Desarchivar",
     "pin": "Fijar",
@@ -127,7 +128,7 @@
     "duplicate": "Duplicar",
     "share": "Compartir",
     "showCollaborators": "Mostrar colaboradores",
-    "pinned": "Fijadas",
+    "pinned": "Note pinned",
     "others": "Otros",
     "noNotes": "Sin notas",
     "noNotesFound": "No se encontraron notas",
@@ -160,7 +161,7 @@
     "addNote": "Agregar nota",
     "readMore": "Leer más",
     "remove": "Remove",
-    "dragToReorder": "Arrastra para reordenar",
+    "dragToReorder": "Drag to reorder",
     "more": "Más",
     "emptyState": "Sin notas",
     "metadataPanel": "Detalles",
@@ -173,7 +174,7 @@
     "improveFailed": "Error al mejorar",
     "transformFailed": "Error al transformar",
     "markdown": "Markdown",
-    "unpinned": "Desfijadas",
+    "unpinned": "Note unpinned",
     "redoShortcut": "Rehacer (Ctrl+Y)",
     "undoShortcut": "Deshacer (Ctrl+Z)",
     "reorderTabs": "Reordenar pestaña",
@@ -751,7 +752,7 @@
     "downloadFailed": "Descarga fallida"
   },
   "nav": {
-    "home": "Inicio",
+    "home": "Home",
     "notes": "Notas",
     "notebooks": "Cuadernos",
     "generalNotes": "Notas generales",
@@ -761,7 +762,7 @@
     "aiSettings": "Configuración IA",
     "logout": "Cerrar sesión",
     "login": "Iniciar sesión",
-    "adminDashboard": "Panel de administración",
+    "adminDashboard": "Admin Dashboard",
     "diagnostics": "Diagnósticos",
     "trash": "Papelera",
     "support": "Apoyar Memento ☕",
@@ -786,7 +787,8 @@
     "proPlan": "Plan Pro",
     "chat": "Chat IA",
     "lab": "El Laboratorio",
-    "agents": "Agentes"
+    "agents": "Agentes",
+    "sharedWithMe": "Shared with me"
   },
   "settings": {
     "title": "Configuración",
@@ -814,7 +816,7 @@
     "security": "Seguridad",
     "about": "Acerca de",
     "version": "Versión",
-    "settingsSaved": "Configuración guardada",
+    "settingsSaved": "Settings saved",
     "cardSizeMode": "Note Size",
     "cardSizeModeDescription": "Choose between variable sizes or uniform size",
     "selectCardSizeMode": "Select display mode",
@@ -835,14 +837,14 @@
     "semanticIndexingDescription": "Generate vectors for all notes to enable intent-based search",
     "profile": "Perfil",
     "searchNoResults": "Sin resultados de búsqueda",
-    "languageAuto": "Automático",
+    "languageAuto": "Language set to Auto",
     "emailNotifications": "Notificaciones por correo",
     "emailNotificationsDesc": "Recibir notificaciones importantes por correo",
     "desktopNotifications": "Notificaciones de escritorio",
     "desktopNotificationsDesc": "Recibir notificaciones en el navegador",
     "notificationsDesc": "Gestiona tus preferencias de notificaciones",
-    "autoSave": "Guardar automáticamente",
-    "autoSaveDesc": "Guarda automáticamente los cambios mientras escribes"
+    "autoSave": "Auto-save",
+    "autoSaveDesc": "Automatically save changes while typing"
   },
   "profile": {
     "title": "Perfil",
@@ -864,10 +866,10 @@
     "preferredLanguage": "Idioma preferido",
     "selectLanguage": "Selecciona un idioma",
     "languageDescription": "Este idioma se usará para las funciones impulsadas por IA, análisis de contenido y texto de la interfaz.",
-    "autoDetect": "Detección automática",
+    "autoDetect": "Auto-detect",
     "updateSuccess": "Perfil actualizado",
     "updateFailed": "Error al actualizar el perfil",
-    "languageUpdateSuccess": "Idioma actualizado exitosamente",
+    "languageUpdateSuccess": "Language updated successfully",
     "languageUpdateFailed": "Error al actualizar el idioma",
     "profileUpdated": "Perfil actualizado",
     "profileError": "Error al actualizar el perfil",
@@ -922,8 +924,8 @@
   },
   "general": {
     "loading": "Cargando...",
-    "save": "Guardar",
-    "cancel": "Cancelar",
+    "save": "Save",
+    "cancel": "Cancel",
     "add": "Agregar",
     "edit": "Editar",
     "confirm": "Confirmar",
@@ -984,7 +986,7 @@
     "createNew": "Crear nuevo cuaderno",
     "createDescription": "Inicia una nueva colección para organizar tus notas, ideas y proyectos de manera eficiente.",
     "name": "Nombre del cuaderno",
-    "namePlaceholder": "ej. Estrategia Marketing Q4",
+    "namePlaceholder": "Notebook name",
     "myNotebook": "Mi cuaderno",
     "saving": "Guardando...",
     "selectIcon": "Icono",
@@ -993,7 +995,7 @@
     "creating": "Creando...",
     "edit": "Editar cuaderno",
     "editDescription": "Cambia el nombre, icono y color de tu cuaderno.",
-    "delete": "Eliminar cuaderno",
+    "delete": "Delete",
     "deleteWarning": "¿Estás seguro de que quieres eliminar este cuaderno? Las notas se moverán a Notas generales.",
     "deleteConfirm": "Eliminar",
     "summary": "Resumen del cuaderno",
@@ -1012,7 +1014,10 @@
     "pinnedFrozenTooltip": "Cuaderno fijado: pedido congelado",
     "organizeNotebookWithAITooltip": "Organiza este cuaderno con IA",
     "assistantRequiredForSummarize": "Active AI Assistant en la configuración para resumir",
-    "createSubnotebook": "Agregar subcuaderno"
+    "createSubnotebook": "Agregar subcuaderno",
+    "createSubNotebook": "Add sub-notebook",
+    "rename": "Rename",
+    "moveToTrash": "Move to trash"
   },
   "notebookSuggestion": {
     "title": "¿Mover a {name}?",
@@ -1430,20 +1435,22 @@
   },
   "appearance": {
     "title": "Apariencia",
-    "description": "Personaliza el aspecto de la aplicación",
+    "description": "Customize the interface",
     "notesViewDescription": "Elige cómo se muestran las notas en el inicio y en los cuadernos.",
     "notesViewLabel": "Vista de notas",
     "notesViewTabs": "Pestañas (estilo OneNote)",
     "notesViewMasonry": "Tarjetas (cuadrícula)",
     "notesViewList": "Lista (revista)",
-    "selectTheme": "Select theme",
-    "fontFamilyLabel": "Familia de fuentes",
-    "fontFamilyDescription": "Elige la fuente utilizada en toda la aplicación",
+    "selectTheme": "Choose your preferred theme",
+    "fontFamilyLabel": "Font",
+    "fontFamilyDescription": "Choose the application's font",
     "selectFontFamily": "Inter está optimizado para la legibilidad, Sistema usa la fuente nativa de tu sistema operativo",
-    "fontSystem": "Fuente del sistema predeterminada",
+    "fontSystem": "System",
     "fontInterDefault": "Inter (default)",
     "fontPlayfairDisplay": "Playfair Display",
-    "fontJetBrainsMono": "JetBrains Mono"
+    "fontJetBrainsMono": "JetBrains Mono",
+    "accentColorTitle": "Accent Color",
+    "accentColorDescription": "Set the main color of your workspace"
   },
   "generalSettings": {
     "title": "General",
@@ -1477,18 +1484,26 @@
   },
   "trash": {
     "title": "Papelera",
-    "empty": "La papelera está vacía",
-    "emptyDescription": "Las notas eliminadas aparecerán aquí",
-    "restore": "Restaurar",
+    "empty": "Trash is empty",
+    "emptyDescription": "Deleted items will appear here. They are kept for 30 days before permanent deletion.",
+    "restore": "Restore",
     "deletePermanently": "Eliminar permanentemente",
     "noteTrashed": "Nota movida a la papelera",
     "noteRestored": "Nota restaurada",
     "notePermanentlyDeleted": "Nota eliminada permanentemente",
     "emptyTrash": "Vaciar papelera",
-    "emptyTrashConfirm": "¿Eliminar permanentemente todas las notas de la papelera?",
+    "emptyTrashConfirm": "Empty trash? This is irreversible.",
     "emptyTrashSuccess": "Papelera vaciada",
-    "permanentDelete": "Eliminar permanentemente",
-    "permanentDeleteConfirm": "Esta nota se eliminará permanentemente. Esta acción no se puede deshacer."
+    "permanentDelete": "Delete permanently",
+    "permanentDeleteConfirm": "Esta nota se eliminará permanentemente. Esta acción no se puede deshacer.",
+    "restoreSuccess": "Restored successfully",
+    "restoreError": "Failed to restore",
+    "permanentDeleteSuccess": "Permanently deleted",
+    "deleteError": "Failed to delete",
+    "daysRemaining": "DAYS LEFT",
+    "notebookContentPreserved": "Notebook content preserved",
+    "notebookRestoreHint": "Restoring a notebook also restores all its notes.",
+    "filterAll": "All"
   },
   "footer": {
     "privacy": "Privacidad",
@@ -1583,7 +1598,23 @@
       "chinese": "Chino",
       "japanese": "japonés"
     },
-    "customPlaceholder": "p.ej. Árabe, ruso…"
+    "customPlaceholder": "p.ej. Árabe, ruso…",
+    "autoDetect": "Auto-detect",
+    "en": "English",
+    "fr": "Français",
+    "es": "Español",
+    "de": "Deutsch",
+    "fa": "فارسی",
+    "it": "Italiano",
+    "pt": "Português",
+    "ru": "Русский",
+    "zh": "中文",
+    "ja": "日本語",
+    "ko": "한국어",
+    "ar": "العربية",
+    "hi": "हिन्दी",
+    "nl": "Nederlands",
+    "pl": "Polski"
   },
   "common": {
     "unknown": "Desconocido",
@@ -1591,16 +1622,16 @@
     "loading": "Cargando",
     "error": "Error",
     "success": "Éxito",
-    "confirm": "Confirmar",
-    "cancel": "Cancelar",
+    "confirm": "Confirm",
+    "cancel": "Cancel",
     "close": "Cerrar",
     "save": "Guardar",
     "delete": "Eliminar",
     "edit": "Editar",
     "add": "Agregar",
     "remove": "Eliminar",
-    "search": "Buscar",
-    "noResults": "Sin resultados",
+    "search": "Search...",
+    "noResults": "No notes found",
     "required": "Requerido",
     "optional": "Opcional"
   },
@@ -1982,7 +2013,9 @@
     "searching": "Buscando...",
     "noNotesFoundForContext": "No se encontraron notas relevantes para esta pregunta. Responde con tu conocimiento general.",
     "webSearch": "Búsqueda web",
-    "timeoutWarning": "Response is taking longer than expected..."
+    "timeoutWarning": "Response is taking longer than expected...",
+    "quotaExceededBasic": "AI Chat is available from the PRO plan onwards.",
+    "quotaExceededTier": "Monthly quota reached for {tier} plan. It will reset next month."
   },
   "labHeader": {
     "title": "El Laboratorio",
@@ -2550,5 +2583,13 @@
         "link2Href": "#"
       }
     }
+  },
+  "noteHistory": {
+    "title": "Title",
+    "content": "Content",
+    "untitled": "Untitled",
+    "emptyState": "No versions available",
+    "selectVersion": "Select a version to preview its content",
+    "currentVersion": "current"
   }
-}
+}
\ No newline at end of file
diff --git a/memento-note/locales/fa.json b/memento-note/locales/fa.json
index 5946b3b..c0d9023 100644
--- a/memento-note/locales/fa.json
+++ b/memento-note/locales/fa.json
@@ -49,8 +49,8 @@
     "sortOldest": "اول قدیمی ترین",
     "sortAlpha": "A → Z",
     "accountMenu": "منوی حساب",
-    "profile": "نمایه",
-    "signOut": "از سیستم خارج شوید",
+    "profile": "Profile",
+    "signOut": "Sign out",
     "sortOrder": "ترتیب مرتب سازی",
     "freezePinnedNotebook": "پین کردن سفارش نوار کناری نوت بوک",
     "unfreezePinnedNotebook": "پین کردن سفارش نوار کناری نوت بوک",
@@ -58,14 +58,15 @@
     "renameNotebook": "تغییر نام دهید",
     "sharedNotebookBadge": "· Shared",
     "sortManual": "ترتیب آزاد",
-    "moveFailed": "انتقال دفترچه ناموفق بود",
-    "dropToRoot": "برای انتقال به ریشه اینجا رها کنید"
+    "moveFailed": "Failed to move notebook",
+    "dropToRoot": "Drop here to move to root",
+    "noReminders": "No active reminders."
   },
   "notes": {
     "title": "یادداشت‌ها",
     "newNote": "یادداشت جدید",
     "reorganize": "سازماندهی مجدد یادداشت ها",
-    "untitled": "بدون عنوان",
+    "untitled": "Untitled",
     "placeholder": "یادداشت بگیرید...",
     "markdownPlaceholder": "یادداشت بگیرید... (Markdown پشتیبانی می‌شود)",
     "titlePlaceholder": "عنوان",
@@ -81,12 +82,12 @@
     "add": "افزودن",
     "adding": "در حال افزودن...",
     "close": "بستن",
-    "confirmDelete": "آیا مطمئن هستید که می‌خواهید این یادداشت را حذف کنید؟",
+    "confirmDelete": "Are you sure you want to delete this note?",
     "confirmLeaveShare": "آیا مطمئن هستید که می‌خواهید این یادداشت اشتراکی را ترک کنید؟",
     "sharedBy": "به اشتراک گذاشته توسط",
     "sharedShort": "به اشتراک گذاشته شده است",
     "leaveShare": "ترک",
-    "delete": "حذف",
+    "delete": "Delete",
     "archive": "بایگانی",
     "unarchive": "خروج از بایگانی",
     "pin": "سنجاق کردن",
@@ -127,7 +128,7 @@
     "duplicate": "تکثیر",
     "share": "اشتراک‌گذاری",
     "showCollaborators": "مشاهده همکاران",
-    "pinned": "سنجاق شده",
+    "pinned": "Note pinned",
     "others": "سایر",
     "noNotes": "بدون عنوان",
     "noNotesFound": "یادداشتی یافت نشد",
@@ -159,8 +160,8 @@
     "recent": "اخیر",
     "addNote": "افزودن یادداشت",
     "readMore": "ادامه مطلب",
-    "remove": "حذف",
-    "dragToReorder": "بکشید تا مرتب کنید",
+    "remove": "Remove",
+    "dragToReorder": "Drag to reorder",
     "more": "بیشتر",
     "emptyState": "یادداشتی نیست",
     "metadataPanel": "جزئیات",
@@ -173,7 +174,7 @@
     "improveFailed": "بهبود شکست خورد",
     "transformFailed": "تبدیل شکست خورد",
     "markdown": "مارک‌داون",
-    "unpinned": "سنجاق نشده",
+    "unpinned": "Note unpinned",
     "redoShortcut": "انجام مجدد (Ctrl+Y)",
     "undoShortcut": "بازگردانی (Ctrl+Z)",
     "reorderTabs": "مرتب‌سازی زبانه",
@@ -753,7 +754,7 @@
     "downloadFailed": "دانلود انجام نشد"
   },
   "nav": {
-    "home": "خانه",
+    "home": "Home",
     "notes": "یادداشت‌ها",
     "notebooks": "دفترچه‌ها",
     "generalNotes": "یادداشت‌های عمومی",
@@ -763,7 +764,7 @@
     "aiSettings": "تنظیمات هوش مصنوعی",
     "logout": "خروج",
     "login": "ورود",
-    "adminDashboard": "داشبورد مدیریت",
+    "adminDashboard": "Admin Dashboard",
     "diagnostics": "تشخیص‌ها",
     "trash": "سطل زباله",
     "support": "پشتیبانی مامنتو ☕",
@@ -788,7 +789,8 @@
     "proPlan": "پلن پرو",
     "chat": "چت هوش مصنوعی",
     "lab": "آزمایشگاه",
-    "agents": "عامل‌ها"
+    "agents": "عامل‌ها",
+    "sharedWithMe": "Shared with me"
   },
   "settings": {
     "title": "تنظیمات",
@@ -816,7 +818,7 @@
     "security": "امنیت",
     "about": "درباره",
     "version": "نسخه",
-    "settingsSaved": "تنظیمات ذخیره شد",
+    "settingsSaved": "Settings saved",
     "cardSizeMode": "اندازه یادداشت",
     "cardSizeModeDescription": "انتخاب بین اندازه متغیر یا یکنواخت",
     "selectCardSizeMode": "انتخاب حالت نمایش",
@@ -837,14 +839,14 @@
     "semanticIndexingDescription": "تولید بردارها برای همه یادداشت‌ها جهت فعال‌سازی جستجوی مبتنی بر قصد",
     "profile": "پروفایل",
     "searchNoResults": "تنظیمات مطابق یافت نشد",
-    "languageAuto": "تشخیص خودکار",
+    "languageAuto": "Language set to Auto",
     "emailNotifications": "اعلان‌های ایمیل",
     "emailNotificationsDesc": "دریافت اعلان‌های مهم از طریق ایمیل",
     "desktopNotifications": "اعلان‌های مرورگر",
     "desktopNotificationsDesc": "دریافت اعلان‌ها در مرورگر",
     "notificationsDesc": "مدیریت تنظیمات اعلان",
-    "autoSave": "ذخیره خودکار",
-    "autoSaveDesc": "هنگام تایپ کردن، تغییرات را به صورت خودکار ذخیره کنید"
+    "autoSave": "Auto-save",
+    "autoSaveDesc": "Automatically save changes while typing"
   },
   "profile": {
     "title": "پروفایل",
@@ -866,10 +868,10 @@
     "preferredLanguage": "زبان مورد نظر",
     "selectLanguage": "یک زبان انتخاب کنید",
     "languageDescription": "این زبان برای ویژگی‌های هوش مصنوعی، تحلیل محتوا و متن رابط کاربری استفاده خواهد شد.",
-    "autoDetect": "تشخیص خودکار",
+    "autoDetect": "Auto-detect",
     "updateSuccess": "پروفایل به‌روزرسانی شد",
     "updateFailed": "به‌روزرسانی پروفایل شکست خورد",
-    "languageUpdateSuccess": "زبان با موفقیت به‌روزرسانی شد",
+    "languageUpdateSuccess": "Language updated successfully",
     "languageUpdateFailed": "به‌روزرسانی زبان شکست خورد",
     "profileUpdated": "پروفایل به‌روزرسانی شد",
     "profileError": "خطا در به‌روزرسانی پروفایل",
@@ -925,8 +927,8 @@
   },
   "general": {
     "loading": "در حال بارگذاری...",
-    "save": "ذخیره",
-    "cancel": "لغو",
+    "save": "Save",
+    "cancel": "Cancel",
     "add": "افزودن",
     "edit": "ویرایش",
     "confirm": "تأیید",
@@ -987,7 +989,7 @@
     "createNew": "ایجاد دفترچه جدید",
     "createDescription": "یک مجموعه جدید برای سازماندهی یادداشت‌ها، ایده‌ها و پروژه‌های خود به طور مؤثر شروع کنید.",
     "name": "نام دفترچه",
-    "namePlaceholder": "مثلاً استراتژی بازاریابی سه‌ماهه چهارم",
+    "namePlaceholder": "Notebook name",
     "myNotebook": "دفترچه من",
     "saving": "در حال ذخیره...",
     "selectIcon": "آیکون",
@@ -996,7 +998,7 @@
     "creating": "در حال ایجاد...",
     "edit": "ویرایش دفترچه",
     "editDescription": "نام، آیکون و رنگ دفترچه خود را تغییر دهید.",
-    "delete": "حذف دفترچه",
+    "delete": "Delete",
     "deleteWarning": "آیا مطمئن هستید که می‌خواهید این دفترچه را حذف کنید؟ یادداشت‌ها به یادداشت‌های عمومی منتقل می‌شوند.",
     "deleteConfirm": "حذف",
     "summary": "خلاصه دفترچه",
@@ -1015,7 +1017,10 @@
     "pinnedFrozenTooltip": "نوت بوک پین شده - سفارش منجمد شده",
     "organizeNotebookWithAITooltip": "این نوت بوک را با هوش مصنوعی سازماندهی کنید",
     "assistantRequiredForSummarize": "برای خلاصه کردن، دستیار هوش مصنوعی را در تنظیمات روشن کنید",
-    "createSubnotebook": "اضافه کردن نوت بوک فرعی"
+    "createSubnotebook": "اضافه کردن نوت بوک فرعی",
+    "createSubNotebook": "Add sub-notebook",
+    "rename": "Rename",
+    "moveToTrash": "Move to trash"
   },
   "notebookSuggestion": {
     "title": "انتقال به {name}؟",
@@ -1434,21 +1439,23 @@
   },
   "appearance": {
     "title": "ظاهر",
-    "description": "سفارشی‌سازی ظاهر برنامه",
+    "description": "Customize the interface",
     "notesViewDescription": "نحوه نمایش یادداشت‌ها در صفحه اصلی و دفترچه‌ها را انتخاب کنید.",
     "notesViewLabel": "چیدمان یادداشت‌ها",
     "notesViewTabs": "زبانه‌ها (سبک OneNote)",
     "notesViewMasonry": "کارت‌ها (شبکه‌ای)",
     "notesViewList": "فهرست (مجله)",
-    "selectTheme": "انتخاب تم",
-    "fontFamilyLabel": "خانواده فونت",
-    "fontFamilyDescription": "فونت استفاده شده در سراسر برنامه را انتخاب کنید",
+    "selectTheme": "Choose your preferred theme",
+    "fontFamilyLabel": "Font",
+    "fontFamilyDescription": "Choose the application's font",
     "selectFontFamily": "Inter برای خوانایی بهینه شده است، سیستم از فونت بومی سیستم‌عامل شما استفاده می‌کند",
-    "fontSystem": "فونت پیش‌فرض سیستم",
+    "fontSystem": "System",
     "fontInterDefault": "Inter (default)",
     "fontPlayfairDisplay": "Playfair Display",
     "fontJetBrainsMono": "JetBrains Mono",
-    "tab": "ظاهر"
+    "tab": "ظاهر",
+    "accentColorTitle": "Accent Color",
+    "accentColorDescription": "Set the main color of your workspace"
   },
   "generalSettings": {
     "title": "عمومی",
@@ -1482,18 +1489,26 @@
   },
   "trash": {
     "title": "سطل زباله",
-    "empty": "سطل زباله خالی است",
-    "emptyDescription": "یادداشت‌های حذف شده در اینجا نمایش داده می‌شوند",
-    "restore": "بازیابی",
+    "empty": "Trash is empty",
+    "emptyDescription": "Deleted items will appear here. They are kept for 30 days before permanent deletion.",
+    "restore": "Restore",
     "deletePermanently": "حذف دائمی",
     "noteTrashed": "یادداشت به سطل زباله منتقل شد",
     "noteRestored": "یادداشت بازیابی شد",
     "notePermanentlyDeleted": "یادداشت برای همیشه حذف شد",
     "emptyTrash": "خالی کردن سطل زباله",
-    "emptyTrashConfirm": "همه یادداشت‌های سطل زباله برای همیشه حذف شوند؟",
+    "emptyTrashConfirm": "Empty trash? This is irreversible.",
     "emptyTrashSuccess": "سطل زباله خالی شد",
-    "permanentDelete": "حذف دائمی",
-    "permanentDeleteConfirm": "این یادداشت برای همیشه حذف خواهد شد. این عمل قابل بازگشت نیست."
+    "permanentDelete": "Delete permanently",
+    "permanentDeleteConfirm": "این یادداشت برای همیشه حذف خواهد شد. این عمل قابل بازگشت نیست.",
+    "restoreSuccess": "Restored successfully",
+    "restoreError": "Failed to restore",
+    "permanentDeleteSuccess": "Permanently deleted",
+    "deleteError": "Failed to delete",
+    "daysRemaining": "DAYS LEFT",
+    "notebookContentPreserved": "Notebook content preserved",
+    "notebookRestoreHint": "Restoring a notebook also restores all its notes.",
+    "filterAll": "All"
   },
   "footer": {
     "privacy": "حریم خصوصی",
@@ -1588,7 +1603,23 @@
       "chinese": "چینی",
       "japanese": "ژاپنی"
     },
-    "customPlaceholder": "به عنوان مثال عربی، روسی…"
+    "customPlaceholder": "به عنوان مثال عربی، روسی…",
+    "autoDetect": "Auto-detect",
+    "en": "English",
+    "fr": "Français",
+    "es": "Español",
+    "de": "Deutsch",
+    "fa": "فارسی",
+    "it": "Italiano",
+    "pt": "Português",
+    "ru": "Русский",
+    "zh": "中文",
+    "ja": "日本語",
+    "ko": "한국어",
+    "ar": "العربية",
+    "hi": "हिन्दी",
+    "nl": "Nederlands",
+    "pl": "Polski"
   },
   "common": {
     "unknown": "نامشخص",
@@ -1596,16 +1627,16 @@
     "loading": "در حال بارگذاری...",
     "error": "خطا",
     "success": "موفق",
-    "confirm": "تأیید",
-    "cancel": "لغو",
+    "confirm": "Confirm",
+    "cancel": "Cancel",
     "close": "بستن",
     "save": "ذخیره",
     "delete": "حذف",
     "edit": "ویرایش",
     "add": "افزودن",
     "remove": "حذف",
-    "search": "جستجو",
-    "noResults": "نتیجه‌ای یافت نشد",
+    "search": "Search...",
+    "noResults": "No notes found",
     "required": "الزامی",
     "optional": "اختیاری"
   },
@@ -1987,7 +2018,9 @@
     "searching": "در حال جستجو...",
     "noNotesFoundForContext": "هیچ یادداشت مرتبطی برای این سوال یافت نشد. با دانش عمومی خود پاسخ دهید.",
     "webSearch": "جستجوی وب",
-    "timeoutWarning": "پاسخ بیشتر از حد انتظار طول می‌کشد..."
+    "timeoutWarning": "پاسخ بیشتر از حد انتظار طول می‌کشد...",
+    "quotaExceededBasic": "AI Chat is available from the PRO plan onwards.",
+    "quotaExceededTier": "Monthly quota reached for {tier} plan. It will reset next month."
   },
   "labHeader": {
     "title": "آزمایشگاه",
@@ -2561,5 +2594,13 @@
         "link2Href": "#"
       }
     }
+  },
+  "noteHistory": {
+    "title": "Title",
+    "content": "Content",
+    "untitled": "Untitled",
+    "emptyState": "No versions available",
+    "selectVersion": "Select a version to preview its content",
+    "currentVersion": "current"
   }
-}
+}
\ No newline at end of file
diff --git a/memento-note/locales/fr.json b/memento-note/locales/fr.json
index 0341f0e..9c275f0 100644
--- a/memento-note/locales/fr.json
+++ b/memento-note/locales/fr.json
@@ -65,8 +65,9 @@
     "renameNotebook": "Renommer",
     "sharedNotebookBadge": "· partagé",
     "sortManual": "Ordre libre",
-    "moveFailed": "Impossible de déplacer le carnet",
-    "dropToRoot": "Déposer ici pour remonter à la racine"
+    "moveFailed": "Échec du déplacement du carnet",
+    "dropToRoot": "Déposez ici pour déplacer à la racine",
+    "noReminders": "Aucun rappel actif."
   },
   "notes": {
     "title": "Notes",
@@ -88,7 +89,7 @@
     "add": "Ajouter",
     "adding": "Ajout...",
     "close": "Fermer",
-    "confirmDelete": "Êtes-vous sûr de vouloir supprimer cette note ?",
+    "confirmDelete": "Voulez-vous vraiment supprimer cette note ?",
     "confirmLeaveShare": "Êtes-vous sûr de vouloir quitter cette note partagée ?",
     "sharedBy": "Partagé par",
     "sharedShort": "Partagé",
@@ -770,7 +771,7 @@
     "aiSettings": "Paramètres IA",
     "logout": "Déconnexion",
     "login": "Connexion",
-    "adminDashboard": "Tableau de bord Admin",
+    "adminDashboard": "Administration",
     "diagnostics": "Diagnostics",
     "trash": "Corbeille",
     "support": "Soutenir Memento ☕",
@@ -795,7 +796,8 @@
     "proPlan": "Plan Pro",
     "chat": "Chat IA",
     "lab": "L'Atelier",
-    "agents": "Agents"
+    "agents": "Agents",
+    "sharedWithMe": "Partagé avec moi"
   },
   "settings": {
     "title": "Paramètres",
@@ -897,7 +899,10 @@
     "showRecentNotesDescription": "Afficher les notes récentes (7 derniers jours) sur la page principale",
     "recentNotesUpdateSuccess": "Paramètre des notes récentes mis à jour avec succès",
     "recentNotesUpdateFailed": "Échec de la mise à jour du paramètre des notes récentes",
-    "tab": "Profil"
+    "tab": "Profil",
+    "preferences": "Préférences de compte",
+    "desktopNotifications": "Notification bureau",
+    "desktopNotificationsDesc": "Recevez des alertes pour vos rappels et activités IA."
   },
   "aiSettings": {
     "title": "IA",
@@ -994,7 +999,7 @@
     "createNew": "Créer un nouveau carnet",
     "createDescription": "Commencez une nouvelle collection pour organiser vos notes, idées et projets efficacement.",
     "name": "Nom du carnet",
-    "namePlaceholder": "ex. Stratégie Marketing Q4",
+    "namePlaceholder": "Nom du carnet",
     "myNotebook": "Mon carnet",
     "saving": "Enregistrement...",
     "selectIcon": "Icône",
@@ -1003,7 +1008,7 @@
     "creating": "Création...",
     "edit": "Modifier le carnet",
     "editDescription": "Changer le nom, l'icône et la couleur de votre carnet.",
-    "delete": "Supprimer le carnet",
+    "delete": "Supprimer",
     "deleteWarning": "Êtes-vous sûr de vouloir supprimer ce carnet ? Les notes seront déplacées dans les Notes générales.",
     "deleteConfirm": "Supprimer",
     "summary": "Résumé du carnet",
@@ -1022,7 +1027,10 @@
     "pinnedFrozenTooltip": "Carnet figé (ordre des sous-carnets verrouillé)",
     "organizeNotebookWithAITooltip": "Organiser ce carnet avec l'IA",
     "assistantRequiredForSummarize": "Activez l'assistant IA dans les paramètres pour résumer",
-    "createSubnotebook": "Ajouter un sous-carnet"
+    "createSubnotebook": "Ajouter un sous-carnet",
+    "createSubNotebook": "Nouveau sous-carnet…",
+    "rename": "Renommer",
+    "confirmRename": "Renommer"
   },
   "notebookSuggestion": {
     "title": "Déplacer vers {name} ?",
@@ -1441,21 +1449,23 @@
   },
   "appearance": {
     "title": "Apparence",
-    "description": "Personnaliser l'apparence de l'application",
+    "description": "Personnalisez l'interface",
     "notesViewDescription": "Choisissez comment afficher les notes sur l'accueil et dans les carnets.",
     "notesViewLabel": "Affichage des notes",
     "notesViewTabs": "Onglets (type OneNote)",
     "notesViewMasonry": "Cartes (grille)",
     "notesViewList": "Liste (magazine)",
-    "selectTheme": "Sélectionner le thème",
-    "fontFamilyLabel": "Famille de polices",
-    "fontFamilyDescription": "Choisissez la police utilisée dans toute l'application",
+    "selectTheme": "Choisissez votre thème",
+    "fontFamilyLabel": "Police",
+    "fontFamilyDescription": "Choisissez la police de l'application",
     "selectFontFamily": "Inter est optimisé pour la lisibilité, Système utilise la police native de votre système d'exploitation",
-    "fontSystem": "Police système par défaut",
-    "fontInterDefault": "Inter (défaut)",
+    "fontSystem": "Système",
+    "fontInterDefault": "Inter (par défaut)",
     "fontPlayfairDisplay": "Playfair Display",
     "fontJetBrainsMono": "JetBrains Mono",
-    "tab": "Apparence"
+    "tab": "Apparence",
+    "accentColorTitle": "Couleur d'activation",
+    "accentColorDescription": "Définissez la couleur principale de votre espace de travail"
   },
   "usageMeter": {
     "packName": "Pack découverte IA",
@@ -1514,17 +1524,25 @@
   "trash": {
     "title": "Corbeille",
     "empty": "La corbeille est vide",
-    "emptyDescription": "Les notes supprimées apparaîtront ici",
+    "emptyDescription": "Les éléments supprimés apparaîtront ici. Ils sont conservés pendant 30 jours avant suppression définitive.",
     "restore": "Restaurer",
     "deletePermanently": "Supprimer définitivement",
     "noteTrashed": "Note déplacée dans la corbeille",
     "noteRestored": "Note restaurée",
     "notePermanentlyDeleted": "Note supprimée définitivement",
     "emptyTrash": "Vider la corbeille",
-    "emptyTrashConfirm": "Supprimer définitivement toutes les notes de la corbeille ?",
+    "emptyTrashConfirm": "Vider la corbeille ? Cette action est irréversible.",
     "emptyTrashSuccess": "Corbeille vidée",
     "permanentDelete": "Supprimer définitivement",
-    "permanentDeleteConfirm": "Cette note sera supprimée définitivement. Cette action est irréversible."
+    "permanentDeleteConfirm": "Cette note sera supprimée définitivement. Cette action est irréversible.",
+    "restoreSuccess": "Restauration réussie",
+    "restoreError": "Échec de la restauration",
+    "permanentDeleteSuccess": "Suppression définitive",
+    "deleteError": "Échec de la suppression",
+    "daysRemaining": "JOURS RESTANTS",
+    "notebookContentPreserved": "Contenu du carnet préservé",
+    "notebookRestoreHint": "La restauration d'un carnet restaure également toutes ses notes.",
+    "filterAll": "Tous"
   },
   "footer": {
     "privacy": "Confidentialité",
@@ -1619,7 +1637,23 @@
       "chinese": "Chinois",
       "japanese": "Japonais"
     },
-    "customPlaceholder": "ex. : Arabe, Russe…"
+    "customPlaceholder": "ex. : Arabe, Russe…",
+    "autoDetect": "Détection auto",
+    "en": "English",
+    "fr": "Français",
+    "es": "Español",
+    "de": "Deutsch",
+    "fa": "فارسی",
+    "it": "Italiano",
+    "pt": "Português",
+    "ru": "Русский",
+    "zh": "中文",
+    "ja": "日本語",
+    "ko": "한국어",
+    "ar": "العربية",
+    "hi": "हिन्दी",
+    "nl": "Nederlands",
+    "pl": "Polski"
   },
   "common": {
     "unknown": "Inconnu",
@@ -1635,8 +1669,8 @@
     "edit": "Modifier",
     "add": "Ajouter",
     "remove": "Supprimer",
-    "search": "Rechercher",
-    "noResults": "Aucun résultat",
+    "search": "Rechercher...",
+    "noResults": "Aucune note trouvée",
     "required": "Requis",
     "optional": "Optionnel"
   },
@@ -2018,7 +2052,9 @@
     "searching": "Recherche en cours...",
     "noNotesFoundForContext": "Aucune note pertinente trouvée pour cette question. Réponds avec tes connaissances générales.",
     "webSearch": "Recherche web",
-    "timeoutWarning": "La réponse met plus de temps que prévu..."
+    "timeoutWarning": "La réponse met plus de temps que prévu...",
+    "quotaExceededBasic": "Le chat IA est réservé au plan PRO et supérieur.",
+    "quotaExceededTier": "Limite mensuelle atteinte pour le plan {tier}. Elle se réinitialise le mois prochain."
   },
   "labHeader": {
     "title": "L'Atelier",
@@ -2568,5 +2604,13 @@
         "link2Href": "#"
       }
     }
+  },
+  "noteHistory": {
+    "title": "Titre",
+    "content": "Contenu",
+    "untitled": "Sans titre",
+    "emptyState": "Aucune version disponible",
+    "selectVersion": "Sélectionnez une version pour prévisualiser son contenu",
+    "currentVersion": "actuelle"
   }
-}
+}
\ No newline at end of file
diff --git a/memento-note/locales/hi.json b/memento-note/locales/hi.json
index fb6c345..1108615 100644
--- a/memento-note/locales/hi.json
+++ b/memento-note/locales/hi.json
@@ -49,8 +49,8 @@
     "sortOldest": "सबसे पुराना पहले",
     "sortAlpha": "ए → जेड",
     "accountMenu": "खाता मेनू",
-    "profile": "प्रोफ़ाइल",
-    "signOut": "साइन आउट",
+    "profile": "Profile",
+    "signOut": "Sign out",
     "sortOrder": "क्रमबद्ध करेन का आदेश",
     "freezePinnedNotebook": "पिन नोटबुक साइडबार ऑर्डर",
     "unfreezePinnedNotebook": "नोटबुक साइडबार ऑर्डर को अनपिन करें",
@@ -58,14 +58,15 @@
     "renameNotebook": "नाम बदलें",
     "sharedNotebookBadge": "· Shared",
     "sortManual": "कस्टम क्रम",
-    "moveFailed": "नोटबुक ले जाने में विफल",
-    "dropToRoot": "रूट में ले जाने के लिए यहाँ छोड़ें"
+    "moveFailed": "Failed to move notebook",
+    "dropToRoot": "Drop here to move to root",
+    "noReminders": "No active reminders."
   },
   "notes": {
     "title": "नोट्स",
     "newNote": "नया नोट",
     "reorganize": "नोट्स को पुनर्व्यवस्थित करें",
-    "untitled": "शीर्षकहीन",
+    "untitled": "Untitled",
     "placeholder": "नोट लें...",
     "markdownPlaceholder": "नोट लें... (Markdown समर्थित)",
     "titlePlaceholder": "शीर्षक",
@@ -81,12 +82,12 @@
     "add": "जोड़ें",
     "adding": "जोड़ रहे हैं...",
     "close": "बंद करें",
-    "confirmDelete": "क्या आप वाकई इस नोट को हटाना चाहते हैं?",
+    "confirmDelete": "Are you sure you want to delete this note?",
     "confirmLeaveShare": "क्या आप वाकई इस साझा नोट को छोड़ना चाहते हैं?",
     "sharedBy": "द्वारा साझा किया गया",
     "sharedShort": "साझा",
     "leaveShare": "छोड़ें",
-    "delete": "हटाएं",
+    "delete": "Delete",
     "archive": "संग्रहित करें",
     "unarchive": "संग्रह से निकालें",
     "pin": "पिन करें",
@@ -127,7 +128,7 @@
     "duplicate": "डुप्लिकेट",
     "share": "साझा करें",
     "showCollaborators": "सहयोगी दिखाएं",
-    "pinned": "पिन किए गए",
+    "pinned": "Note pinned",
     "others": "अन्य",
     "noNotes": "कोई नोट नहीं",
     "noNotesFound": "कोई नोट नहीं मिला",
@@ -159,8 +160,8 @@
     "recent": "हालिया",
     "addNote": "नोट जोड़ें",
     "readMore": "और पढ़ें",
-    "remove": "हटाएं",
-    "dragToReorder": "पुनर्व्यवस्थित करने के लिए खींचें",
+    "remove": "Remove",
+    "dragToReorder": "Drag to reorder",
     "more": "अधिक",
     "emptyState": "कोई नोट नहीं",
     "metadataPanel": "विवरण",
@@ -173,7 +174,7 @@
     "improveFailed": "सुधारने में विफल",
     "transformFailed": "रूपांतरित करने में विफल",
     "markdown": "Markdown",
-    "unpinned": "अनपिन किया गया",
+    "unpinned": "Note unpinned",
     "redoShortcut": "फिर से करें (Ctrl+Y)",
     "undoShortcut": "पूर्ववत करें (Ctrl+Z)",
     "reorderTabs": "टैब पुनर्व्यवस्थित करें",
@@ -751,7 +752,7 @@
     "downloadFailed": "डाउनलोड विफल रहा"
   },
   "nav": {
-    "home": "होम",
+    "home": "Home",
     "notes": "नोट्स",
     "notebooks": "नोटबुक",
     "generalNotes": "सामान्य नोट्स",
@@ -761,7 +762,7 @@
     "aiSettings": "AI सेटिंग्स",
     "logout": "लॉग आउट",
     "login": "लॉग इन",
-    "adminDashboard": "एडमिन डैशबोर्ड",
+    "adminDashboard": "Admin Dashboard",
     "diagnostics": "निदान",
     "trash": "कचरा",
     "support": "Memento का समर्थन करें ☕",
@@ -786,7 +787,8 @@
     "proPlan": "प्रो योजना",
     "chat": "AI चैट",
     "lab": "लैब",
-    "agents": "एजेंट"
+    "agents": "एजेंट",
+    "sharedWithMe": "Shared with me"
   },
   "settings": {
     "title": "सेटिंग्स",
@@ -814,7 +816,7 @@
     "security": "सुरक्षा",
     "about": "के बारे में",
     "version": "संस्करण",
-    "settingsSaved": "सेटिंग्स सहेजी गई",
+    "settingsSaved": "Settings saved",
     "cardSizeMode": "Note Size",
     "cardSizeModeDescription": "Choose between variable sizes or uniform size",
     "selectCardSizeMode": "Select display mode",
@@ -835,14 +837,14 @@
     "semanticIndexingDescription": "Generate vectors for all notes to enable intent-based search",
     "profile": "प्रोफ़ाइल",
     "searchNoResults": "कोई मिलान सेटिंग्स नहीं मिली",
-    "languageAuto": "स्वचालित पता लगाना",
+    "languageAuto": "Language set to Auto",
     "emailNotifications": "ईमेल सूचनाएं",
     "emailNotificationsDesc": "ईमेल द्वारा महत्वपूर्ण सूचनाएं प्राप्त करें",
     "desktopNotifications": "डेस्कटॉप सूचनाएं",
     "desktopNotificationsDesc": "ब्राउज़र में सूचनाएं प्राप्त करें",
     "notificationsDesc": "अपनी सूचना वरीयताएं प्रबंधित करें",
-    "autoSave": "ऑटो को बचाने",
-    "autoSaveDesc": "टाइप करते समय परिवर्तन स्वचालित रूप से सहेजें"
+    "autoSave": "Auto-save",
+    "autoSaveDesc": "Automatically save changes while typing"
   },
   "profile": {
     "title": "प्रोफ़ाइल",
@@ -864,10 +866,10 @@
     "preferredLanguage": "पसंदीदा भाषा",
     "selectLanguage": "भाषा चुनें",
     "languageDescription": "यह भाषा AI-संचालित सुविधाओं, सामग्री विश्लेषण और इंटरफेस पाठ के लिए उपयोग की जाएगी।",
-    "autoDetect": "स्वचालित पता लगाना",
+    "autoDetect": "Auto-detect",
     "updateSuccess": "प्रोफ़ाइल अपडेट किया गया",
     "updateFailed": "प्रोफ़ाइल अपडेट करने में विफल",
-    "languageUpdateSuccess": "भाषा सफलतापूर्वक अपडेट की गई",
+    "languageUpdateSuccess": "Language updated successfully",
     "languageUpdateFailed": "भाषा अपडेट करने में विफल",
     "profileUpdated": "प्रोफ़ाइल अपडेट किया गया",
     "profileError": "प्रोफ़ाइल अपडेट करने में त्रुटि",
@@ -922,8 +924,8 @@
   },
   "general": {
     "loading": "लोड हो रहा है...",
-    "save": "सहेजें",
-    "cancel": "रद्द करें",
+    "save": "Save",
+    "cancel": "Cancel",
     "add": "जोड़ें",
     "edit": "संपादित करें",
     "confirm": "पुष्टि करें",
@@ -984,7 +986,7 @@
     "createNew": "नया नोटबुक बनाएं",
     "createDescription": "अपने नोट्स, विचारों और परियोजनाओं को कुशलता से व्यवस्थित करने के लिए एक नया संग्रह शुरू करें।",
     "name": "नोटबुक नाम",
-    "namePlaceholder": "उदा. Q4 मार्केटिंग रणनीति",
+    "namePlaceholder": "Notebook name",
     "myNotebook": "मेरी नोटबुक",
     "saving": "सहेज रहा है...",
     "selectIcon": "आइकन",
@@ -993,7 +995,7 @@
     "creating": "बना रहे हैं...",
     "edit": "नोटबुक संपादित करें",
     "editDescription": "नोटबुक का नाम, आइकन और रंग बदलें।",
-    "delete": "नोटबुक हटाएं",
+    "delete": "Delete",
     "deleteWarning": "क्या आप वाकई इस नोटबुक को हटाना चाहते हैं? नोट्स को सामान्य नोट्स में ले जाया जाएगा।",
     "deleteConfirm": "हटाएं",
     "summary": "नोटबुक सारांश",
@@ -1012,7 +1014,10 @@
     "pinnedFrozenTooltip": "पिन की गई नोटबुक - ऑर्डर फ़्रीज़ किया गया",
     "organizeNotebookWithAITooltip": "इस नोटबुक को AI के साथ व्यवस्थित करें",
     "assistantRequiredForSummarize": "संक्षेप में बताने के लिए सेटिंग्स में AI Assistant चालू करें",
-    "createSubnotebook": "उप-नोटबुक जोड़ें"
+    "createSubnotebook": "उप-नोटबुक जोड़ें",
+    "createSubNotebook": "Add sub-notebook",
+    "rename": "Rename",
+    "moveToTrash": "Move to trash"
   },
   "notebookSuggestion": {
     "title": "{name} में ले जाएं?",
@@ -1430,20 +1435,22 @@
   },
   "appearance": {
     "title": "दिखावट",
-    "description": "ऐप के दिखने के तरीके को अनुकूलित करें",
+    "description": "Customize the interface",
     "notesViewDescription": "चुनें कि होम और नोटबुक में नोट्स कैसे दिखाए जाएं।",
     "notesViewLabel": "नोट्स दृश्य",
     "notesViewTabs": "टैब (OneNote-शैली)",
     "notesViewMasonry": "कार्ड (ग्रिड)",
     "notesViewList": "सूची (पत्रिका)",
-    "selectTheme": "Select theme",
-    "fontFamilyLabel": "फ़ॉन्ट परिवार",
-    "fontFamilyDescription": "पूरे ऐप में उपयोग किए जाने वाले फ़ॉन्ट का चयन करें",
+    "selectTheme": "Choose your preferred theme",
+    "fontFamilyLabel": "Font",
+    "fontFamilyDescription": "Choose the application's font",
     "selectFontFamily": "Inter पठनीयता के लिए अनुकूलित है, सिस्टम आपके OS के मूल फ़ॉन्ट का उपयोग करता है",
-    "fontSystem": "सिस्टम डिफ़ॉल्ट",
+    "fontSystem": "System",
     "fontInterDefault": "Inter (default)",
     "fontPlayfairDisplay": "Playfair Display",
-    "fontJetBrainsMono": "JetBrains Mono"
+    "fontJetBrainsMono": "JetBrains Mono",
+    "accentColorTitle": "Accent Color",
+    "accentColorDescription": "Set the main color of your workspace"
   },
   "generalSettings": {
     "title": "General",
@@ -1477,18 +1484,26 @@
   },
   "trash": {
     "title": "रीसायकल बिन",
-    "empty": "रीसायकल बिन खाली है",
-    "emptyDescription": "हटाई गई नोट्स यहां दिखाई देंगी",
-    "restore": "पुनर्स्थापित करें",
+    "empty": "Trash is empty",
+    "emptyDescription": "Deleted items will appear here. They are kept for 30 days before permanent deletion.",
+    "restore": "Restore",
     "deletePermanently": "स्थायी रूप से हटाएं",
     "noteTrashed": "नोट रीसायकल बिन में ले जाया गया",
     "noteRestored": "नोट पुनर्स्थापित किया गया",
     "notePermanentlyDeleted": "नोट स्थायी रूप से हटाया गया",
     "emptyTrash": "रीसायकल बिन खाली करें",
-    "emptyTrashConfirm": "रीसायकल बिन की सभी नोट्स स्थायी रूप से हटाएं?",
+    "emptyTrashConfirm": "Empty trash? This is irreversible.",
     "emptyTrashSuccess": "रीसायकल बिन खाली किया गया",
-    "permanentDelete": "स्थायी रूप से हटाएं",
-    "permanentDeleteConfirm": "यह नोट स्थायी रूप से हटा दी जाएगी। इसे पूर्ववत नहीं किया जा सकता।"
+    "permanentDelete": "Delete permanently",
+    "permanentDeleteConfirm": "यह नोट स्थायी रूप से हटा दी जाएगी। इसे पूर्ववत नहीं किया जा सकता।",
+    "restoreSuccess": "Restored successfully",
+    "restoreError": "Failed to restore",
+    "permanentDeleteSuccess": "Permanently deleted",
+    "deleteError": "Failed to delete",
+    "daysRemaining": "DAYS LEFT",
+    "notebookContentPreserved": "Notebook content preserved",
+    "notebookRestoreHint": "Restoring a notebook also restores all its notes.",
+    "filterAll": "All"
   },
   "footer": {
     "privacy": "गोपनीयता",
@@ -1583,7 +1598,23 @@
       "chinese": "चीनी",
       "japanese": "जापानी"
     },
-    "customPlaceholder": "जैसे अरबी, रूसी..."
+    "customPlaceholder": "जैसे अरबी, रूसी...",
+    "autoDetect": "Auto-detect",
+    "en": "English",
+    "fr": "Français",
+    "es": "Español",
+    "de": "Deutsch",
+    "fa": "فارسی",
+    "it": "Italiano",
+    "pt": "Português",
+    "ru": "Русский",
+    "zh": "中文",
+    "ja": "日本語",
+    "ko": "한국어",
+    "ar": "العربية",
+    "hi": "हिन्दी",
+    "nl": "Nederlands",
+    "pl": "Polski"
   },
   "common": {
     "unknown": "अज्ञात",
@@ -1591,16 +1622,16 @@
     "loading": "लोड हो रहा है...",
     "error": "त्रुटि",
     "success": "सफल",
-    "confirm": "पुष्टि करें",
-    "cancel": "रद्द करें",
+    "confirm": "Confirm",
+    "cancel": "Cancel",
     "close": "बंद करें",
     "save": "सहेजें",
     "delete": "हटाएं",
     "edit": "संपादित करें",
     "add": "जोड़ें",
     "remove": "हटाएं",
-    "search": "खोजें",
-    "noResults": "कोई परिणाम नहीं",
+    "search": "Search...",
+    "noResults": "No notes found",
     "required": "आवश्यक",
     "optional": "वैकल्पिक"
   },
@@ -1982,7 +2013,9 @@
     "searching": "खोज रहे हैं...",
     "noNotesFoundForContext": "इस प्रश्न के लिए कोई प्रासंगिक नोट्स नहीं मिले। अपने सामान्य ज्ञान से उत्तर दें।",
     "webSearch": "वेब खोज",
-    "timeoutWarning": "Response is taking longer than expected..."
+    "timeoutWarning": "Response is taking longer than expected...",
+    "quotaExceededBasic": "AI Chat is available from the PRO plan onwards.",
+    "quotaExceededTier": "Monthly quota reached for {tier} plan. It will reset next month."
   },
   "labHeader": {
     "title": "लैब",
@@ -2550,5 +2583,13 @@
         "link2Href": "#"
       }
     }
+  },
+  "noteHistory": {
+    "title": "Title",
+    "content": "Content",
+    "untitled": "Untitled",
+    "emptyState": "No versions available",
+    "selectVersion": "Select a version to preview its content",
+    "currentVersion": "current"
   }
-}
+}
\ No newline at end of file
diff --git a/memento-note/locales/it.json b/memento-note/locales/it.json
index b2a3941..b3f79da 100644
--- a/memento-note/locales/it.json
+++ b/memento-note/locales/it.json
@@ -49,8 +49,8 @@
     "sortOldest": "Prima il più vecchio",
     "sortAlpha": "A→Z",
     "accountMenu": "Menù conto",
-    "profile": "Profilo",
-    "signOut": "disconnessione",
+    "profile": "Profile",
+    "signOut": "Sign out",
     "sortOrder": "Ordinamento",
     "freezePinnedNotebook": "Blocca l'ordine della barra laterale del taccuino",
     "unfreezePinnedNotebook": "Sblocca l'ordine della barra laterale del notebook",
@@ -58,14 +58,15 @@
     "renameNotebook": "Rinominare",
     "sharedNotebookBadge": "· Shared",
     "sortManual": "Ordine libero",
-    "moveFailed": "Impossibile spostare il quaderno",
-    "dropToRoot": "Rilascia qui per spostare alla radice"
+    "moveFailed": "Failed to move notebook",
+    "dropToRoot": "Drop here to move to root",
+    "noReminders": "No active reminders."
   },
   "notes": {
     "title": "Note",
     "newNote": "Nuova nota",
     "reorganize": "Riorganizzare le note",
-    "untitled": "Senza titolo",
+    "untitled": "Untitled",
     "placeholder": "Scrivi una nota...",
     "markdownPlaceholder": "Scrivi una nota... (Markdown supportato)",
     "titlePlaceholder": "Titolo",
@@ -81,12 +82,12 @@
     "add": "Aggiungi",
     "adding": "Aggiunta in corso...",
     "close": "Chiudi",
-    "confirmDelete": "Sei sicuro di voler eliminare questa nota?",
+    "confirmDelete": "Are you sure you want to delete this note?",
     "confirmLeaveShare": "Sei sicuro di voler abbandonare questa nota condivisa?",
     "sharedBy": "Condivisa da",
     "sharedShort": "Condiviso",
     "leaveShare": "Abbandona",
-    "delete": "Elimina",
+    "delete": "Delete",
     "archive": "Archivia",
     "unarchive": "Rimuovi dall’archivio",
     "pin": "Fissa",
@@ -127,7 +128,7 @@
     "duplicate": "Duplica",
     "share": "Condividi",
     "showCollaborators": "Mostra collaboratori",
-    "pinned": "Fissate",
+    "pinned": "Note pinned",
     "others": "Altre",
     "noNotes": "Nessuna nota",
     "noNotesFound": "Nessuna nota trovata",
@@ -160,7 +161,7 @@
     "addNote": "Aggiungi nota",
     "readMore": "Leggi di più",
     "remove": "Remove",
-    "dragToReorder": "Trascina per riordinare",
+    "dragToReorder": "Drag to reorder",
     "more": "Altro",
     "emptyState": "Nessuna nota qui",
     "metadataPanel": "Dettagli",
@@ -173,7 +174,7 @@
     "improveFailed": "Miglioramento non riuscito",
     "transformFailed": "Trasformazione non riuscita",
     "markdown": "Markdown",
-    "unpinned": "Non fissato",
+    "unpinned": "Note unpinned",
     "redoShortcut": "Ripeti (Ctrl+Y)",
     "undoShortcut": "Annulla (Ctrl+Z)",
     "reorderTabs": "Riordina scheda",
@@ -761,7 +762,7 @@
     "aiSettings": "Impostazioni AI",
     "logout": "Logout",
     "login": "Login",
-    "adminDashboard": "Dashboard amministratore",
+    "adminDashboard": "Admin Dashboard",
     "diagnostics": "Diagnostica",
     "trash": "Cestino",
     "support": "Supporta Memento ☕",
@@ -786,7 +787,8 @@
     "proPlan": "Piano Pro",
     "chat": "Chat IA",
     "lab": "Il Lab",
-    "agents": "Agenti"
+    "agents": "Agenti",
+    "sharedWithMe": "Shared with me"
   },
   "settings": {
     "title": "Settings",
@@ -835,14 +837,14 @@
     "semanticIndexingDescription": "Generate vectors for all notes to enable intent-based search",
     "profile": "Profilo",
     "searchNoResults": "Nessun risultato trovato",
-    "languageAuto": "Automatico",
+    "languageAuto": "Language set to Auto",
     "emailNotifications": "Notifiche email",
     "emailNotificationsDesc": "Ricevi notifiche importanti via email",
     "desktopNotifications": "Notifiche desktop",
     "desktopNotificationsDesc": "Ricevi notifiche nel browser",
     "notificationsDesc": "Gestisci le preferenze di notifica",
-    "autoSave": "Salvataggio automatico",
-    "autoSaveDesc": "Salva automaticamente le modifiche durante la digitazione"
+    "autoSave": "Auto-save",
+    "autoSaveDesc": "Automatically save changes while typing"
   },
   "profile": {
     "title": "Profilo",
@@ -864,10 +866,10 @@
     "preferredLanguage": "Lingua preferita",
     "selectLanguage": "Seleziona una lingua",
     "languageDescription": "Questa lingua sarà usata per le funzionalità AI, l’analisi dei contenuti e l’interfaccia.",
-    "autoDetect": "Rilevamento automatico",
+    "autoDetect": "Auto-detect",
     "updateSuccess": "Profilo aggiornato",
     "updateFailed": "Aggiornamento del profilo non riuscito",
-    "languageUpdateSuccess": "Lingua aggiornata con successo",
+    "languageUpdateSuccess": "Language updated successfully",
     "languageUpdateFailed": "Aggiornamento della lingua non riuscito",
     "profileUpdated": "Profilo aggiornato",
     "profileError": "Errore nell’aggiornamento del profilo",
@@ -922,8 +924,8 @@
   },
   "general": {
     "loading": "Caricamento...",
-    "save": "Salva",
-    "cancel": "Annulla",
+    "save": "Save",
+    "cancel": "Cancel",
     "add": "Aggiungi",
     "edit": "Modifica",
     "confirm": "Conferma",
@@ -984,7 +986,7 @@
     "createNew": "Crea nuovo notebook",
     "createDescription": "Avvia una nuova raccolta per organizzare note, idee e progetti in modo efficiente.",
     "name": "Nome del notebook",
-    "namePlaceholder": "es. Strategia Marketing Q4",
+    "namePlaceholder": "Notebook name",
     "myNotebook": "Il mio quaderno",
     "saving": "Salvataggio...",
     "selectIcon": "Icona",
@@ -993,7 +995,7 @@
     "creating": "Creazione...",
     "edit": "Modifica notebook",
     "editDescription": "Cambia nome, icona e colore del tuo notebook.",
-    "delete": "Elimina notebook",
+    "delete": "Delete",
     "deleteWarning": "Sei sicuro di voler eliminare questo notebook? Le note verranno spostate in Note generali.",
     "deleteConfirm": "Elimina",
     "summary": "Riepilogo notebook",
@@ -1012,7 +1014,10 @@
     "pinnedFrozenTooltip": "Taccuino appuntato: ordine congelato",
     "organizeNotebookWithAITooltip": "Organizza questo taccuino con l'intelligenza artificiale",
     "assistantRequiredForSummarize": "Attiva AI Assistant nelle impostazioni per riepilogare",
-    "createSubnotebook": "Aggiungi sub-notebook"
+    "createSubnotebook": "Aggiungi sub-notebook",
+    "createSubNotebook": "Add sub-notebook",
+    "rename": "Rename",
+    "moveToTrash": "Move to trash"
   },
   "notebookSuggestion": {
     "title": "Spostare in {name}?",
@@ -1430,20 +1435,22 @@
   },
   "appearance": {
     "title": "Aspetto",
-    "description": "Personalizza l'aspetto dell'app",
+    "description": "Customize the interface",
     "notesViewDescription": "Scegli come mostrare le note nella home e nei quaderni.",
     "notesViewLabel": "Vista note",
     "notesViewTabs": "Schede (stile OneNote)",
     "notesViewMasonry": "Schede (griglia)",
     "notesViewList": "Elenco (rivista)",
-    "selectTheme": "Select theme",
-    "fontFamilyLabel": "Famiglia di caratteri",
-    "fontFamilyDescription": "Scegli il carattere utilizzato in tutta l'app",
+    "selectTheme": "Choose your preferred theme",
+    "fontFamilyLabel": "Font",
+    "fontFamilyDescription": "Choose the application's font",
     "selectFontFamily": "Inter è ottimizzato per la leggibilità, Sistema usa il carattere nativo del tuo sistema operativo",
-    "fontSystem": "Carattere predefinito di sistema",
+    "fontSystem": "System",
     "fontInterDefault": "Inter (default)",
     "fontPlayfairDisplay": "Playfair Display",
-    "fontJetBrainsMono": "JetBrains Mono"
+    "fontJetBrainsMono": "JetBrains Mono",
+    "accentColorTitle": "Accent Color",
+    "accentColorDescription": "Set the main color of your workspace"
   },
   "generalSettings": {
     "title": "General",
@@ -1477,18 +1484,26 @@
   },
   "trash": {
     "title": "Cestino",
-    "empty": "Il cestino è vuoto",
-    "emptyDescription": "Le note eliminate appariranno qui",
-    "restore": "Ripristina",
+    "empty": "Trash is empty",
+    "emptyDescription": "Deleted items will appear here. They are kept for 30 days before permanent deletion.",
+    "restore": "Restore",
     "deletePermanently": "Elimina definitivamente",
     "noteTrashed": "Nota spostata nel cestino",
     "noteRestored": "Nota ripristinata",
     "notePermanentlyDeleted": "Nota eliminata definitivamente",
     "emptyTrash": "Svuota cestino",
-    "emptyTrashConfirm": "Eliminare definitivamente tutte le note nel cestino?",
+    "emptyTrashConfirm": "Empty trash? This is irreversible.",
     "emptyTrashSuccess": "Cestino svuotato",
-    "permanentDelete": "Elimina definitivamente",
-    "permanentDeleteConfirm": "Questa nota verrà eliminata definitivamente. Questa azione non può essere annullata."
+    "permanentDelete": "Delete permanently",
+    "permanentDeleteConfirm": "Questa nota verrà eliminata definitivamente. Questa azione non può essere annullata.",
+    "restoreSuccess": "Restored successfully",
+    "restoreError": "Failed to restore",
+    "permanentDeleteSuccess": "Permanently deleted",
+    "deleteError": "Failed to delete",
+    "daysRemaining": "DAYS LEFT",
+    "notebookContentPreserved": "Notebook content preserved",
+    "notebookRestoreHint": "Restoring a notebook also restores all its notes.",
+    "filterAll": "All"
   },
   "footer": {
     "privacy": "Privacy",
@@ -1583,7 +1598,23 @@
       "chinese": "cinese",
       "japanese": "giapponese"
     },
-    "customPlaceholder": "per esempio. Arabo, russo…"
+    "customPlaceholder": "per esempio. Arabo, russo…",
+    "autoDetect": "Auto-detect",
+    "en": "English",
+    "fr": "Français",
+    "es": "Español",
+    "de": "Deutsch",
+    "fa": "فارسی",
+    "it": "Italiano",
+    "pt": "Português",
+    "ru": "Русский",
+    "zh": "中文",
+    "ja": "日本語",
+    "ko": "한국어",
+    "ar": "العربية",
+    "hi": "हिन्दी",
+    "nl": "Nederlands",
+    "pl": "Polski"
   },
   "common": {
     "unknown": "Sconosciuto",
@@ -1591,16 +1622,16 @@
     "loading": "Caricamento...",
     "error": "Errore",
     "success": "Successo",
-    "confirm": "Conferma",
-    "cancel": "Annulla",
+    "confirm": "Confirm",
+    "cancel": "Cancel",
     "close": "Chiudi",
     "save": "Salva",
     "delete": "Elimina",
     "edit": "Modifica",
     "add": "Aggiungi",
     "remove": "Rimuovi",
-    "search": "Cerca",
-    "noResults": "Nessun risultato",
+    "search": "Search...",
+    "noResults": "No notes found",
     "required": "Obbligatorio",
     "optional": "Opzionale"
   },
@@ -1982,7 +2013,9 @@
     "searching": "Ricerca in corso...",
     "noNotesFoundForContext": "Nessuna nota rilevante trovata per questa domanda. Rispondi con la tua conoscenza generale.",
     "webSearch": "Ricerca web",
-    "timeoutWarning": "Response is taking longer than expected..."
+    "timeoutWarning": "Response is taking longer than expected...",
+    "quotaExceededBasic": "AI Chat is available from the PRO plan onwards.",
+    "quotaExceededTier": "Monthly quota reached for {tier} plan. It will reset next month."
   },
   "labHeader": {
     "title": "Il Laboratorio",
@@ -2550,5 +2583,13 @@
         "link2Href": "#"
       }
     }
+  },
+  "noteHistory": {
+    "title": "Title",
+    "content": "Content",
+    "untitled": "Untitled",
+    "emptyState": "No versions available",
+    "selectVersion": "Select a version to preview its content",
+    "currentVersion": "current"
   }
-}
+}
\ No newline at end of file
diff --git a/memento-note/locales/ja.json b/memento-note/locales/ja.json
index bf5284a..2d11bcd 100644
--- a/memento-note/locales/ja.json
+++ b/memento-note/locales/ja.json
@@ -49,8 +49,8 @@
     "sortOldest": "古い順",
     "sortAlpha": "A→Z",
     "accountMenu": "アカウントメニュー",
-    "profile": "プロフィール",
-    "signOut": "サインアウト",
+    "profile": "Profile",
+    "signOut": "Sign out",
     "sortOrder": "並べ替え順序",
     "freezePinnedNotebook": "ノートブックのサイドバーの順序を固定する",
     "unfreezePinnedNotebook": "ノートブックのサイドバーの順序の固定を解除する",
@@ -58,14 +58,15 @@
     "renameNotebook": "名前の変更",
     "sharedNotebookBadge": "· Shared",
     "sortManual": "自由な順序",
-    "moveFailed": "ノートブックの移動に失敗しました",
-    "dropToRoot": "ここにドロップでルートに移動"
+    "moveFailed": "Failed to move notebook",
+    "dropToRoot": "Drop here to move to root",
+    "noReminders": "No active reminders."
   },
   "notes": {
     "title": "ノート",
     "newNote": "新しいノート",
     "reorganize": "メモを再整理する",
-    "untitled": "無題",
+    "untitled": "Untitled",
     "placeholder": "ノートを作成...",
     "markdownPlaceholder": "ノートを作成...（Markdown対応）",
     "titlePlaceholder": "タイトル",
@@ -81,12 +82,12 @@
     "add": "追加",
     "adding": "追加中...",
     "close": "閉じる",
-    "confirmDelete": "このノートを削除してもよろしいですか？",
+    "confirmDelete": "Are you sure you want to delete this note?",
     "confirmLeaveShare": "この共有ノートを退出してもよろしいですか？",
     "sharedBy": "共有者",
     "sharedShort": "共有",
     "leaveShare": "退出",
-    "delete": "削除",
+    "delete": "Delete",
     "archive": "アーカイブ",
     "unarchive": "アーカイブを解除",
     "pin": "ピン留め",
@@ -127,7 +128,7 @@
     "duplicate": "複製",
     "share": "共有",
     "showCollaborators": "共同編集者を表示",
-    "pinned": "ピン留め済み",
+    "pinned": "Note pinned",
     "others": "その他",
     "noNotes": "ノートはありません",
     "noNotesFound": "ノートが見つかりませんでした",
@@ -159,8 +160,8 @@
     "recent": "最近",
     "addNote": "ノートを追加",
     "readMore": "続きを読む",
-    "remove": "削除",
-    "dragToReorder": "ドラッグして並べ替え",
+    "remove": "Remove",
+    "dragToReorder": "Drag to reorder",
     "more": "もっと見る",
     "emptyState": "ノートがありません",
     "metadataPanel": "詳細",
@@ -173,7 +174,7 @@
     "improveFailed": "改善に失敗しました",
     "transformFailed": "変換に失敗しました",
     "markdown": "Markdown",
-    "unpinned": "ピン留め解除",
+    "unpinned": "Note unpinned",
     "redoShortcut": "やり直し (Ctrl+Y)",
     "undoShortcut": "元に戻す (Ctrl+Z)",
     "reorderTabs": "タブを並べ替え",
@@ -751,7 +752,7 @@
     "downloadFailed": "ダウンロードに失敗しました"
   },
   "nav": {
-    "home": "ホーム",
+    "home": "Home",
     "notes": "ノート",
     "notebooks": "ノートブック",
     "generalNotes": "一般ノート",
@@ -761,7 +762,7 @@
     "aiSettings": "AI設定",
     "logout": "ログアウト",
     "login": "ログイン",
-    "adminDashboard": "管理ダッシュボード",
+    "adminDashboard": "Admin Dashboard",
     "diagnostics": "診断",
     "trash": "ゴミ箱",
     "support": "Mementoをサポート ☕",
@@ -786,7 +787,8 @@
     "proPlan": "プロプラン",
     "chat": "AIチャット",
     "lab": "ラボ",
-    "agents": "エージェント"
+    "agents": "エージェント",
+    "sharedWithMe": "Shared with me"
   },
   "settings": {
     "title": "設定",
@@ -814,7 +816,7 @@
     "security": "セキュリティ",
     "about": "について",
     "version": "バージョン",
-    "settingsSaved": "設定を保存しました",
+    "settingsSaved": "Settings saved",
     "cardSizeMode": "Note Size",
     "cardSizeModeDescription": "Choose between variable sizes or uniform size",
     "selectCardSizeMode": "Select display mode",
@@ -835,14 +837,14 @@
     "semanticIndexingDescription": "すべてのノートのベクトルを生成して、意図に基づく検索を有効にします",
     "profile": "プロフィール",
     "searchNoResults": "一致する設定が見つかりません",
-    "languageAuto": "自動検出",
+    "languageAuto": "Language set to Auto",
     "emailNotifications": "メール通知",
     "emailNotificationsDesc": "重要な通知をメールで受け取ります",
     "desktopNotifications": "デスクトップ通知",
     "desktopNotificationsDesc": "ブラウザで通知を受け取ります",
     "notificationsDesc": "通知設定を管理します",
-    "autoSave": "自動保存",
-    "autoSaveDesc": "入力中に変更を自動的に保存する"
+    "autoSave": "Auto-save",
+    "autoSaveDesc": "Automatically save changes while typing"
   },
   "profile": {
     "title": "プロフィール",
@@ -864,10 +866,10 @@
     "preferredLanguage": "優先言語",
     "selectLanguage": "言語を選択",
     "languageDescription": "この言語はAI機能、コンテンツ分析、インターフェーステキストに使用されます。",
-    "autoDetect": "自動検出",
+    "autoDetect": "Auto-detect",
     "updateSuccess": "プロフィールを更新しました",
     "updateFailed": "プロフィールの更新に失敗しました",
-    "languageUpdateSuccess": "言語を更新しました",
+    "languageUpdateSuccess": "Language updated successfully",
     "languageUpdateFailed": "言語の更新に失敗しました",
     "profileUpdated": "プロフィールを更新しました",
     "profileError": "プロフィールの更新エラー",
@@ -922,8 +924,8 @@
   },
   "general": {
     "loading": "読み込み中...",
-    "save": "保存",
-    "cancel": "キャンセル",
+    "save": "Save",
+    "cancel": "Cancel",
     "add": "追加",
     "edit": "編集",
     "confirm": "確認",
@@ -984,7 +986,7 @@
     "createNew": "新しいノートブックを作成",
     "createDescription": "新しいコレクションを開始して、ノート、アイデア、プロジェクトを効率的に整理しましょう。",
     "name": "ノートブック名",
-    "namePlaceholder": "例：Q4マーケティング戦略",
+    "namePlaceholder": "Notebook name",
     "myNotebook": "マイノートブック",
     "saving": "保存中...",
     "selectIcon": "アイコン",
@@ -993,7 +995,7 @@
     "creating": "作成中...",
     "edit": "ノートブックを編集",
     "editDescription": "ノートブックの名前、アイコン、色を変更します。",
-    "delete": "ノートブックを削除",
+    "delete": "Delete",
     "deleteWarning": "このノートブックを削除してもよろしいですか？ノートは一般ノートに移動されます。",
     "deleteConfirm": "削除",
     "summary": "ノートブックの概要",
@@ -1012,7 +1014,10 @@
     "pinnedFrozenTooltip": "固定されたノートブック — 注文は凍結されています",
     "organizeNotebookWithAITooltip": "このノートを AI で整理する",
     "assistantRequiredForSummarize": "設定で AI アシスタントをオンにして要約します",
-    "createSubnotebook": "サブノートブックを追加する"
+    "createSubnotebook": "サブノートブックを追加する",
+    "createSubNotebook": "Add sub-notebook",
+    "rename": "Rename",
+    "moveToTrash": "Move to trash"
   },
   "notebookSuggestion": {
     "title": "{name}に移動しますか？",
@@ -1430,20 +1435,22 @@
   },
   "appearance": {
     "title": "外観",
-    "description": "アプリの見た目をカスタマイズ",
+    "description": "Customize the interface",
     "notesViewDescription": "ホームとノートブックでノートを表示する方法を選択します。",
     "notesViewLabel": "ノートのレイアウト",
     "notesViewTabs": "タブ（OneNote風）",
     "notesViewMasonry": "カード（グリッド）",
     "notesViewList": "一覧（雑誌）",
-    "selectTheme": "Select theme",
-    "fontFamilyLabel": "フォントファミリー",
-    "fontFamilyDescription": "アプリ全体で使用するフォントを選択してください",
+    "selectTheme": "Choose your preferred theme",
+    "fontFamilyLabel": "Font",
+    "fontFamilyDescription": "Choose the application's font",
     "selectFontFamily": "Inter は読みやすさに最適化されています。システムはOSのネイティブフォントを使用します",
-    "fontSystem": "システムデフォルト",
+    "fontSystem": "System",
     "fontInterDefault": "Inter (default)",
     "fontPlayfairDisplay": "Playfair Display",
-    "fontJetBrainsMono": "JetBrains Mono"
+    "fontJetBrainsMono": "JetBrains Mono",
+    "accentColorTitle": "Accent Color",
+    "accentColorDescription": "Set the main color of your workspace"
   },
   "generalSettings": {
     "title": "General",
@@ -1477,18 +1484,26 @@
   },
   "trash": {
     "title": "ゴミ箱",
-    "empty": "ゴミ箱は空です",
-    "emptyDescription": "削除されたメモはここに表示されます",
-    "restore": "復元",
+    "empty": "Trash is empty",
+    "emptyDescription": "Deleted items will appear here. They are kept for 30 days before permanent deletion.",
+    "restore": "Restore",
     "deletePermanently": "完全に削除",
     "noteTrashed": "メモをゴミ箱に移動しました",
     "noteRestored": "メモを復元しました",
     "notePermanentlyDeleted": "メモを完全に削除しました",
     "emptyTrash": "ゴミ箱を空にする",
-    "emptyTrashConfirm": "ゴミ箱内のすべてのメモを完全に削除しますか？",
+    "emptyTrashConfirm": "Empty trash? This is irreversible.",
     "emptyTrashSuccess": "ゴミ箱を空にしました",
-    "permanentDelete": "完全に削除",
-    "permanentDeleteConfirm": "このメモは完全に削除されます。この操作は取り消せません。"
+    "permanentDelete": "Delete permanently",
+    "permanentDeleteConfirm": "このメモは完全に削除されます。この操作は取り消せません。",
+    "restoreSuccess": "Restored successfully",
+    "restoreError": "Failed to restore",
+    "permanentDeleteSuccess": "Permanently deleted",
+    "deleteError": "Failed to delete",
+    "daysRemaining": "DAYS LEFT",
+    "notebookContentPreserved": "Notebook content preserved",
+    "notebookRestoreHint": "Restoring a notebook also restores all its notes.",
+    "filterAll": "All"
   },
   "footer": {
     "privacy": "プライバシー",
@@ -1583,7 +1598,23 @@
       "chinese": "中国語",
       "japanese": "日本語"
     },
-    "customPlaceholder": "例えばアラビア語、ロシア語…"
+    "customPlaceholder": "例えばアラビア語、ロシア語…",
+    "autoDetect": "Auto-detect",
+    "en": "English",
+    "fr": "Français",
+    "es": "Español",
+    "de": "Deutsch",
+    "fa": "فارسی",
+    "it": "Italiano",
+    "pt": "Português",
+    "ru": "Русский",
+    "zh": "中文",
+    "ja": "日本語",
+    "ko": "한국어",
+    "ar": "العربية",
+    "hi": "हिन्दी",
+    "nl": "Nederlands",
+    "pl": "Polski"
   },
   "common": {
     "unknown": "不明",
@@ -1591,16 +1622,16 @@
     "loading": "読み込み中...",
     "error": "エラー",
     "success": "成功",
-    "confirm": "確認",
-    "cancel": "キャンセル",
+    "confirm": "Confirm",
+    "cancel": "Cancel",
     "close": "閉じる",
     "save": "保存",
     "delete": "削除",
     "edit": "編集",
     "add": "追加",
     "remove": "削除",
-    "search": "検索",
-    "noResults": "結果なし",
+    "search": "Search...",
+    "noResults": "No notes found",
     "required": "必須",
     "optional": "任意"
   },
@@ -1982,7 +2013,9 @@
     "searching": "検索中...",
     "noNotesFoundForContext": "この質問に関連するノートが見つかりませんでした。一般的な知識でお答えください。",
     "webSearch": "ウェブ検索",
-    "timeoutWarning": "Response is taking longer than expected..."
+    "timeoutWarning": "Response is taking longer than expected...",
+    "quotaExceededBasic": "AI Chat is available from the PRO plan onwards.",
+    "quotaExceededTier": "Monthly quota reached for {tier} plan. It will reset next month."
   },
   "labHeader": {
     "title": "ラボ",
@@ -2550,5 +2583,13 @@
         "link2Href": "#"
       }
     }
+  },
+  "noteHistory": {
+    "title": "Title",
+    "content": "Content",
+    "untitled": "Untitled",
+    "emptyState": "No versions available",
+    "selectVersion": "Select a version to preview its content",
+    "currentVersion": "current"
   }
-}
+}
\ No newline at end of file
diff --git a/memento-note/locales/ko.json b/memento-note/locales/ko.json
index c18816e..2950f81 100644
--- a/memento-note/locales/ko.json
+++ b/memento-note/locales/ko.json
@@ -49,8 +49,8 @@
     "sortOldest": "오래된 것부터",
     "sortAlpha": "A → Z",
     "accountMenu": "계정 메뉴",
-    "profile": "윤곽",
-    "signOut": "로그아웃",
+    "profile": "Profile",
+    "signOut": "Sign out",
     "sortOrder": "정렬 순서",
     "freezePinnedNotebook": "노트북 사이드바 순서 고정",
     "unfreezePinnedNotebook": "노트북 사이드바 순서 고정 해제",
@@ -58,14 +58,15 @@
     "renameNotebook": "이름 바꾸기",
     "sharedNotebookBadge": "· Shared",
     "sortManual": "사용자 지정 순서",
-    "moveFailed": "노트북 이동 실패",
-    "dropToRoot": "여기에 놓아 루트로 이동"
+    "moveFailed": "Failed to move notebook",
+    "dropToRoot": "Drop here to move to root",
+    "noReminders": "No active reminders."
   },
   "notes": {
     "title": "메모",
     "newNote": "새 메모",
     "reorganize": "메모 재구성",
-    "untitled": "제목 없음",
+    "untitled": "Untitled",
     "placeholder": "메모 작성...",
     "markdownPlaceholder": "메모 작성... (Markdown 지원)",
     "titlePlaceholder": "제목",
@@ -81,12 +82,12 @@
     "add": "추가",
     "adding": "추가 중...",
     "close": "닫기",
-    "confirmDelete": "이 메모를 삭제하시겠습니까?",
+    "confirmDelete": "Are you sure you want to delete this note?",
     "confirmLeaveShare": "이 공유 메모를 나가시겠습니까?",
     "sharedBy": "공유자",
     "sharedShort": "공유됨",
     "leaveShare": "나가기",
-    "delete": "삭제",
+    "delete": "Delete",
     "archive": "보관",
     "unarchive": "보관 취소",
     "pin": "고정",
@@ -127,7 +128,7 @@
     "duplicate": "복제",
     "share": "공유",
     "showCollaborators": "공동 작업자 표시",
-    "pinned": "고정됨",
+    "pinned": "Note pinned",
     "others": "기타",
     "noNotes": "메모 없음",
     "noNotesFound": "메모를 찾을 수 없습니다",
@@ -159,8 +160,8 @@
     "recent": "최근",
     "addNote": "메모 추가",
     "readMore": "더 읽기",
-    "remove": "제거",
-    "dragToReorder": "드래그하여 재정렬",
+    "remove": "Remove",
+    "dragToReorder": "Drag to reorder",
     "more": "더 보기",
     "emptyState": "메모가 없습니다",
     "metadataPanel": "세부",
@@ -173,7 +174,7 @@
     "improveFailed": "개선 실패",
     "transformFailed": "변환 실패",
     "markdown": "Markdown",
-    "unpinned": "고정 해제됨",
+    "unpinned": "Note unpinned",
     "redoShortcut": "다시 실행 (Ctrl+Y)",
     "undoShortcut": "실행 취소 (Ctrl+Z)",
     "reorderTabs": "탭 재정렬",
@@ -751,7 +752,7 @@
     "downloadFailed": "다운로드 실패"
   },
   "nav": {
-    "home": "홈",
+    "home": "Home",
     "notes": "메모",
     "notebooks": "노트북",
     "generalNotes": "일반 메모",
@@ -761,7 +762,7 @@
     "aiSettings": "AI 설정",
     "logout": "로그아웃",
     "login": "로그인",
-    "adminDashboard": "관리자 대시보드",
+    "adminDashboard": "Admin Dashboard",
     "diagnostics": "진단",
     "trash": "휴지통",
     "support": "Memento 지원하기 ☕",
@@ -786,7 +787,8 @@
     "proPlan": "프로 플랜",
     "chat": "AI 채팅",
     "lab": "랩",
-    "agents": "에이전트"
+    "agents": "에이전트",
+    "sharedWithMe": "Shared with me"
   },
   "settings": {
     "title": "설정",
@@ -814,7 +816,7 @@
     "security": "보안",
     "about": "정보",
     "version": "버전",
-    "settingsSaved": "설정이 저장되었습니다",
+    "settingsSaved": "Settings saved",
     "cardSizeMode": "Note Size",
     "cardSizeModeDescription": "Choose between variable sizes or uniform size",
     "selectCardSizeMode": "Select display mode",
@@ -835,14 +837,14 @@
     "semanticIndexingDescription": "의도 기반 검색을 활성화하기 위해 모든 노트의 벡터를 생성합니다",
     "profile": "프로필",
     "searchNoResults": "일치하는 설정을 찾을 수 없습니다",
-    "languageAuto": "자동 감지",
+    "languageAuto": "Language set to Auto",
     "emailNotifications": "이메일 알림",
     "emailNotificationsDesc": "이메일로 중요한 알림을 받습니다",
     "desktopNotifications": "데스크톱 알림",
     "desktopNotificationsDesc": "브라우저에서 알림을 받습니다",
     "notificationsDesc": "알림 환경설정을 관리합니다",
-    "autoSave": "자동 저장",
-    "autoSaveDesc": "입력하는 동안 변경 사항을 자동으로 저장"
+    "autoSave": "Auto-save",
+    "autoSaveDesc": "Automatically save changes while typing"
   },
   "profile": {
     "title": "프로필",
@@ -864,10 +866,10 @@
     "preferredLanguage": "선호 언어",
     "selectLanguage": "언어 선택",
     "languageDescription": "이 언어는 AI 기능, 콘텐츠 분석 및 인터페이스 텍스트에 사용됩니다.",
-    "autoDetect": "자동 감지",
+    "autoDetect": "Auto-detect",
     "updateSuccess": "프로필이 업데이트되었습니다",
     "updateFailed": "프로필 업데이트 실패",
-    "languageUpdateSuccess": "언어가 업데이트되었습니다",
+    "languageUpdateSuccess": "Language updated successfully",
     "languageUpdateFailed": "언어 업데이트 실패",
     "profileUpdated": "프로필이 업데이트되었습니다",
     "profileError": "프로필 업데이트 오류",
@@ -922,8 +924,8 @@
   },
   "general": {
     "loading": "로딩 중...",
-    "save": "저장",
-    "cancel": "취소",
+    "save": "Save",
+    "cancel": "Cancel",
     "add": "추가",
     "edit": "편집",
     "confirm": "확인",
@@ -984,7 +986,7 @@
     "createNew": "새 노트북 만들기",
     "createDescription": "메모, 아이디어, 프로젝트를 효율적으로 정리할 새 컬렉션을 시작하세요.",
     "name": "노트북 이름",
-    "namePlaceholder": "예: 4분기 마케팅 전략",
+    "namePlaceholder": "Notebook name",
     "myNotebook": "내 노트북",
     "saving": "저장 중...",
     "selectIcon": "아이콘",
@@ -993,7 +995,7 @@
     "creating": "생성 중...",
     "edit": "노트북 편집",
     "editDescription": "노트북의 이름, 아이콘, 색상을 변경합니다.",
-    "delete": "노트북 삭제",
+    "delete": "Delete",
     "deleteWarning": "이 노트북을 삭제하시겠습니까? 메모는 일반 메모로 이동됩니다.",
     "deleteConfirm": "삭제",
     "summary": "노트북 요약",
@@ -1012,7 +1014,10 @@
     "pinnedFrozenTooltip": "고정된 노트북 - 주문이 동결됨",
     "organizeNotebookWithAITooltip": "AI로 이 노트북을 정리하세요",
     "assistantRequiredForSummarize": "요약하려면 설정에서 AI 도우미를 켜세요.",
-    "createSubnotebook": "하위 노트북 추가"
+    "createSubnotebook": "하위 노트북 추가",
+    "createSubNotebook": "Add sub-notebook",
+    "rename": "Rename",
+    "moveToTrash": "Move to trash"
   },
   "notebookSuggestion": {
     "title": "{name}(으)로 이동하시겠습니까?",
@@ -1430,20 +1435,22 @@
   },
   "appearance": {
     "title": "모양",
-    "description": "앱의 모양 사용자 지정",
+    "description": "Customize the interface",
     "notesViewDescription": "홈 및 노트북에서 메모가 표시되는 방식을 선택하세요.",
     "notesViewLabel": "메모 레이아웃",
     "notesViewTabs": "탭 (OneNote 스타일)",
     "notesViewMasonry": "카드 (그리드)",
     "notesViewList": "목록(잡지)",
-    "selectTheme": "Select theme",
-    "fontFamilyLabel": "글꼴 패밀리",
-    "fontFamilyDescription": "앱 전체에서 사용할 글꼴을 선택하세요",
+    "selectTheme": "Choose your preferred theme",
+    "fontFamilyLabel": "Font",
+    "fontFamilyDescription": "Choose the application's font",
     "selectFontFamily": "Inter는 가독성에 최적화되어 있으며, 시스템은 OS 기본 글꼴을 사용합니다",
-    "fontSystem": "시스템 기본 글꼴",
+    "fontSystem": "System",
     "fontInterDefault": "Inter (default)",
     "fontPlayfairDisplay": "Playfair Display",
-    "fontJetBrainsMono": "JetBrains Mono"
+    "fontJetBrainsMono": "JetBrains Mono",
+    "accentColorTitle": "Accent Color",
+    "accentColorDescription": "Set the main color of your workspace"
   },
   "generalSettings": {
     "title": "General",
@@ -1477,18 +1484,26 @@
   },
   "trash": {
     "title": "휴지통",
-    "empty": "휴지통이 비어 있습니다",
-    "emptyDescription": "삭제된 메모가 여기에 표시됩니다",
-    "restore": "복원",
+    "empty": "Trash is empty",
+    "emptyDescription": "Deleted items will appear here. They are kept for 30 days before permanent deletion.",
+    "restore": "Restore",
     "deletePermanently": "영구 삭제",
     "noteTrashed": "메모가 휴지통으로 이동되었습니다",
     "noteRestored": "메모가 복원되었습니다",
     "notePermanentlyDeleted": "메모가 영구 삭제되었습니다",
     "emptyTrash": "휴지통 비우기",
-    "emptyTrashConfirm": "휴지통의 모든 메모를 영구 삭제하시겠습니까?",
+    "emptyTrashConfirm": "Empty trash? This is irreversible.",
     "emptyTrashSuccess": "휴지통이 비워졌습니다",
-    "permanentDelete": "영구 삭제",
-    "permanentDeleteConfirm": "이 메모는 영구 삭제됩니다. 이 작업은 되돌릴 수 없습니다."
+    "permanentDelete": "Delete permanently",
+    "permanentDeleteConfirm": "이 메모는 영구 삭제됩니다. 이 작업은 되돌릴 수 없습니다.",
+    "restoreSuccess": "Restored successfully",
+    "restoreError": "Failed to restore",
+    "permanentDeleteSuccess": "Permanently deleted",
+    "deleteError": "Failed to delete",
+    "daysRemaining": "DAYS LEFT",
+    "notebookContentPreserved": "Notebook content preserved",
+    "notebookRestoreHint": "Restoring a notebook also restores all its notes.",
+    "filterAll": "All"
   },
   "footer": {
     "privacy": "개인정보",
@@ -1583,7 +1598,23 @@
       "chinese": "중국인",
       "japanese": "일본어"
     },
-    "customPlaceholder": "예를 들어 아랍어, 러시아어…"
+    "customPlaceholder": "예를 들어 아랍어, 러시아어…",
+    "autoDetect": "Auto-detect",
+    "en": "English",
+    "fr": "Français",
+    "es": "Español",
+    "de": "Deutsch",
+    "fa": "فارسی",
+    "it": "Italiano",
+    "pt": "Português",
+    "ru": "Русский",
+    "zh": "中文",
+    "ja": "日本語",
+    "ko": "한국어",
+    "ar": "العربية",
+    "hi": "हिन्दी",
+    "nl": "Nederlands",
+    "pl": "Polski"
   },
   "common": {
     "unknown": "알 수 없음",
@@ -1591,16 +1622,16 @@
     "loading": "로딩 중...",
     "error": "오류",
     "success": "성공",
-    "confirm": "확인",
-    "cancel": "취소",
+    "confirm": "Confirm",
+    "cancel": "Cancel",
     "close": "닫기",
     "save": "저장",
     "delete": "삭제",
     "edit": "편집",
     "add": "추가",
     "remove": "제거",
-    "search": "검색",
-    "noResults": "결과 없음",
+    "search": "Search...",
+    "noResults": "No notes found",
     "required": "필수",
     "optional": "선택"
   },
@@ -1982,7 +2013,9 @@
     "searching": "검색 중...",
     "noNotesFoundForContext": "이 질문에 대한 관련 노트를 찾을 수 없습니다. 일반 지식으로 답변하세요.",
     "webSearch": "웹 검색",
-    "timeoutWarning": "Response is taking longer than expected..."
+    "timeoutWarning": "Response is taking longer than expected...",
+    "quotaExceededBasic": "AI Chat is available from the PRO plan onwards.",
+    "quotaExceededTier": "Monthly quota reached for {tier} plan. It will reset next month."
   },
   "labHeader": {
     "title": "랩",
@@ -2550,5 +2583,13 @@
         "link2Href": "#"
       }
     }
+  },
+  "noteHistory": {
+    "title": "Title",
+    "content": "Content",
+    "untitled": "Untitled",
+    "emptyState": "No versions available",
+    "selectVersion": "Select a version to preview its content",
+    "currentVersion": "current"
   }
-}
+}
\ No newline at end of file
diff --git a/memento-note/locales/nl.json b/memento-note/locales/nl.json
index 10350aa..a40b88f 100644
--- a/memento-note/locales/nl.json
+++ b/memento-note/locales/nl.json
@@ -49,8 +49,8 @@
     "sortOldest": "Oudste eerst",
     "sortAlpha": "A → Z",
     "accountMenu": "Accountmenu",
-    "profile": "Profiel",
-    "signOut": "Meld u af",
+    "profile": "Profile",
+    "signOut": "Sign out",
     "sortOrder": "Sorteervolgorde",
     "freezePinnedNotebook": "Zet de volgorde van de notitieboekjezijbalk vast",
     "unfreezePinnedNotebook": "Maak de volgorde van de notitieblokzijbalk los",
@@ -58,14 +58,15 @@
     "renameNotebook": "Hernoemen",
     "sharedNotebookBadge": "· Shared",
     "sortManual": "Vrije volgorde",
-    "moveFailed": "Kan notitieboek niet verplaatsen",
-    "dropToRoot": "Hier loslaten om naar root te verplaatsen"
+    "moveFailed": "Failed to move notebook",
+    "dropToRoot": "Drop here to move to root",
+    "noReminders": "No active reminders."
   },
   "notes": {
     "title": "Notities",
     "newNote": "Nieuwe notitie",
     "reorganize": "Notities reorganiseren",
-    "untitled": "Naamloos",
+    "untitled": "Untitled",
     "placeholder": "Maak een notitie...",
     "markdownPlaceholder": "Maak een notitie... (Markdown ondersteund)",
     "titlePlaceholder": "Titel",
@@ -81,12 +82,12 @@
     "add": "Toevoegen",
     "adding": "Toevoegen...",
     "close": "Sluiten",
-    "confirmDelete": "Weet u zeker dat u deze notitie wilt verwijderen?",
+    "confirmDelete": "Are you sure you want to delete this note?",
     "confirmLeaveShare": "Weet u zeker dat u deze gedeelde notitie wilt verlaten?",
     "sharedBy": "Gedeeld door",
     "sharedShort": "Gedeeld",
     "leaveShare": "Verlaten",
-    "delete": "Verwijderen",
+    "delete": "Delete",
     "archive": "Archiveren",
     "unarchive": "Dearchiveren",
     "pin": "Vastzetten",
@@ -127,7 +128,7 @@
     "duplicate": "Dupliceren",
     "share": "Delen",
     "showCollaborators": "Medewerkers weergeven",
-    "pinned": "Vastgezet",
+    "pinned": "Note pinned",
     "others": "Overig",
     "noNotes": "Geen notities",
     "noNotesFound": "Geen notities gevonden",
@@ -159,8 +160,8 @@
     "recent": "Recent",
     "addNote": "Notitie toevoegen",
     "readMore": "Lees meer",
-    "remove": "Verwijderen",
-    "dragToReorder": "Sleep om te herschikken",
+    "remove": "Remove",
+    "dragToReorder": "Drag to reorder",
     "more": "Meer",
     "emptyState": "Geen notities hier",
     "metadataPanel": "Details",
@@ -173,7 +174,7 @@
     "improveFailed": "Verbeteren mislukt",
     "transformFailed": "Transformeren mislukt",
     "markdown": "Markdown",
-    "unpinned": "Losgemaakt",
+    "unpinned": "Note unpinned",
     "redoShortcut": "Opnieuw (Ctrl+Y)",
     "undoShortcut": "Ongedaan maken (Ctrl+Z)",
     "reorderTabs": "Tabblad herschikken",
@@ -761,7 +762,7 @@
     "aiSettings": "AI-instellingen",
     "logout": "Uitloggen",
     "login": "Inloggen",
-    "adminDashboard": "Beheerdashboard",
+    "adminDashboard": "Admin Dashboard",
     "diagnostics": "Diagnostiek",
     "trash": "Prullenbak",
     "support": "Memento ondersteunen ☕",
@@ -786,7 +787,8 @@
     "proPlan": "Pro Plan",
     "chat": "AI Chat",
     "lab": "Het Lab",
-    "agents": "Agents"
+    "agents": "Agents",
+    "sharedWithMe": "Shared with me"
   },
   "settings": {
     "title": "Instellingen",
@@ -814,7 +816,7 @@
     "security": "Beveiliging",
     "about": "Over",
     "version": "Versie",
-    "settingsSaved": "Instellingen opgeslagen",
+    "settingsSaved": "Settings saved",
     "cardSizeMode": "Note Size",
     "cardSizeModeDescription": "Choose between variable sizes or uniform size",
     "selectCardSizeMode": "Select display mode",
@@ -835,14 +837,14 @@
     "semanticIndexingDescription": "Genereer vectoren voor alle notities om intentiegericht zoeken mogelijk te maken",
     "profile": "Profiel",
     "searchNoResults": "Geen resultaten gevonden",
-    "languageAuto": "Automatisch",
+    "languageAuto": "Language set to Auto",
     "emailNotifications": "E-mailmeldingen",
     "emailNotificationsDesc": "Ontvang belangrijke meldingen per e-mail",
     "desktopNotifications": "Bureaubladmeldingen",
     "desktopNotificationsDesc": "Ontvang meldingen in uw browser",
     "notificationsDesc": "Beheer uw meldingsvoorkeuren",
-    "autoSave": "Automatisch opslaan",
-    "autoSaveDesc": "Sla wijzigingen automatisch op tijdens het typen"
+    "autoSave": "Auto-save",
+    "autoSaveDesc": "Automatically save changes while typing"
   },
   "profile": {
     "title": "Profiel",
@@ -864,10 +866,10 @@
     "preferredLanguage": "Voorkeurstaal",
     "selectLanguage": "Selecteer een taal",
     "languageDescription": "Deze taal wordt gebruikt voor AI-functies, inhoudsanalyse en interfacetekst.",
-    "autoDetect": "Automatisch detecteren",
+    "autoDetect": "Auto-detect",
     "updateSuccess": "Profiel bijgewerkt",
     "updateFailed": "Profiel bijwerken mislukt",
-    "languageUpdateSuccess": "Taal succesvol bijgewerkt",
+    "languageUpdateSuccess": "Language updated successfully",
     "languageUpdateFailed": "Taal bijwerken mislukt",
     "profileUpdated": "Profiel bijgewerkt",
     "profileError": "Fout bij bijwerken profiel",
@@ -922,8 +924,8 @@
   },
   "general": {
     "loading": "Laden...",
-    "save": "Opslaan",
-    "cancel": "Annuleren",
+    "save": "Save",
+    "cancel": "Cancel",
     "add": "Toevoegen",
     "edit": "Bewerken",
     "confirm": "Bevestigen",
@@ -984,7 +986,7 @@
     "createNew": "Nieuw notitieboek maken",
     "createDescription": "Start een nieuwe verzameling om uw notities, ideeën en projecten efficiënt te organiseren.",
     "name": "Naam van notitieboek",
-    "namePlaceholder": "bijv. Q4 Marketingstrategie",
+    "namePlaceholder": "Notebook name",
     "myNotebook": "Mijn notitieboek",
     "saving": "Opslaan...",
     "selectIcon": "Icoon",
@@ -993,7 +995,7 @@
     "creating": "Maken...",
     "edit": "Notitieboek bewerken",
     "editDescription": "Wijzig de naam, het pictogram en de kleur van uw notitieboek.",
-    "delete": "Notitieboek verwijderen",
+    "delete": "Delete",
     "deleteWarning": "Weet u zeker dat u dit notitieboek wilt verwijderen? Notities worden verplaatst naar Algemene notities.",
     "deleteConfirm": "Verwijderen",
     "summary": "Samenvatting van notitieboek",
@@ -1012,7 +1014,10 @@
     "pinnedFrozenTooltip": "Vastgezet notitieboekje — bestelling bevroren",
     "organizeNotebookWithAITooltip": "Organiseer dit notitieboekje met AI",
     "assistantRequiredForSummarize": "Schakel AI Assistant in de instellingen in om samen te vatten",
-    "createSubnotebook": "Subnotitieblok toevoegen"
+    "createSubnotebook": "Subnotitieblok toevoegen",
+    "createSubNotebook": "Add sub-notebook",
+    "rename": "Rename",
+    "moveToTrash": "Move to trash"
   },
   "notebookSuggestion": {
     "title": "Verplaatsen naar {name}?",
@@ -1430,20 +1435,22 @@
   },
   "appearance": {
     "title": "Weergave",
-    "description": "Pas aan hoe de app eruit ziet",
+    "description": "Customize the interface",
     "notesViewDescription": "Kies hoe notities worden weergegeven op de startpagina en in notitieboeken.",
     "notesViewLabel": "Notities weergave",
     "notesViewTabs": "Tabbladen (OneNote-stijl)",
     "notesViewMasonry": "Kaarten (raster)",
     "notesViewList": "Lijst (tijdschrift)",
-    "selectTheme": "Select theme",
-    "fontFamilyLabel": "Lettertypefamilie",
-    "fontFamilyDescription": "Kies het lettertype dat in de hele app wordt gebruikt",
+    "selectTheme": "Choose your preferred theme",
+    "fontFamilyLabel": "Font",
+    "fontFamilyDescription": "Choose the application's font",
     "selectFontFamily": "Inter is geoptimaliseerd voor leesbaarheid, Systeem gebruikt het native lettertype van uw besturingssysteem",
-    "fontSystem": "Standaard systeemlettertype",
+    "fontSystem": "System",
     "fontInterDefault": "Inter (default)",
     "fontPlayfairDisplay": "Playfair Display",
-    "fontJetBrainsMono": "JetBrains Mono"
+    "fontJetBrainsMono": "JetBrains Mono",
+    "accentColorTitle": "Accent Color",
+    "accentColorDescription": "Set the main color of your workspace"
   },
   "generalSettings": {
     "title": "General",
@@ -1477,18 +1484,26 @@
   },
   "trash": {
     "title": "Prullenbak",
-    "empty": "De prullenbak is leeg",
-    "emptyDescription": "Verwijderde notities verschijnen hier",
-    "restore": "Herstellen",
+    "empty": "Trash is empty",
+    "emptyDescription": "Deleted items will appear here. They are kept for 30 days before permanent deletion.",
+    "restore": "Restore",
     "deletePermanently": "Definitief verwijderen",
     "noteTrashed": "Notitie naar prullenbak verplaatst",
     "noteRestored": "Notitie hersteld",
     "notePermanentlyDeleted": "Notitie definitief verwijderd",
     "emptyTrash": "Prullenbak legen",
-    "emptyTrashConfirm": "Alle notities in de prullenbak definitief verwijderen?",
+    "emptyTrashConfirm": "Empty trash? This is irreversible.",
     "emptyTrashSuccess": "Prullenbak geleegd",
-    "permanentDelete": "Definitief verwijderen",
-    "permanentDeleteConfirm": "Deze notitie wordt definitief verwijderd. Deze actie kan niet ongedaan worden gemaakt."
+    "permanentDelete": "Delete permanently",
+    "permanentDeleteConfirm": "Deze notitie wordt definitief verwijderd. Deze actie kan niet ongedaan worden gemaakt.",
+    "restoreSuccess": "Restored successfully",
+    "restoreError": "Failed to restore",
+    "permanentDeleteSuccess": "Permanently deleted",
+    "deleteError": "Failed to delete",
+    "daysRemaining": "DAYS LEFT",
+    "notebookContentPreserved": "Notebook content preserved",
+    "notebookRestoreHint": "Restoring a notebook also restores all its notes.",
+    "filterAll": "All"
   },
   "footer": {
     "privacy": "Privacy",
@@ -1583,7 +1598,23 @@
       "chinese": "Chinese",
       "japanese": "Japanse"
     },
-    "customPlaceholder": "bijv. Arabisch, Russisch…"
+    "customPlaceholder": "bijv. Arabisch, Russisch…",
+    "autoDetect": "Auto-detect",
+    "en": "English",
+    "fr": "Français",
+    "es": "Español",
+    "de": "Deutsch",
+    "fa": "فارسی",
+    "it": "Italiano",
+    "pt": "Português",
+    "ru": "Русский",
+    "zh": "中文",
+    "ja": "日本語",
+    "ko": "한국어",
+    "ar": "العربية",
+    "hi": "हिन्दी",
+    "nl": "Nederlands",
+    "pl": "Polski"
   },
   "common": {
     "unknown": "Onbekend",
@@ -1591,16 +1622,16 @@
     "loading": "Laden...",
     "error": "Fout",
     "success": "Succes",
-    "confirm": "Bevestigen",
-    "cancel": "Annuleren",
+    "confirm": "Confirm",
+    "cancel": "Cancel",
     "close": "Sluiten",
     "save": "Opslaan",
     "delete": "Verwijderen",
     "edit": "Bewerken",
     "add": "Toevoegen",
     "remove": "Verwijderen",
-    "search": "Zoeken",
-    "noResults": "Geen resultaten",
+    "search": "Search...",
+    "noResults": "No notes found",
     "required": "Vereist",
     "optional": "Optioneel"
   },
@@ -1982,7 +2013,9 @@
     "searching": "Zoeken...",
     "noNotesFoundForContext": "Geen relevante notities gevonden voor deze vraag. Beantwoord met je algemene kennis.",
     "webSearch": "Zoeken op het web",
-    "timeoutWarning": "Response is taking longer than expected..."
+    "timeoutWarning": "Response is taking longer than expected...",
+    "quotaExceededBasic": "AI Chat is available from the PRO plan onwards.",
+    "quotaExceededTier": "Monthly quota reached for {tier} plan. It will reset next month."
   },
   "labHeader": {
     "title": "Het Lab",
@@ -2550,5 +2583,13 @@
         "link2Href": "#"
       }
     }
+  },
+  "noteHistory": {
+    "title": "Title",
+    "content": "Content",
+    "untitled": "Untitled",
+    "emptyState": "No versions available",
+    "selectVersion": "Select a version to preview its content",
+    "currentVersion": "current"
   }
-}
+}
\ No newline at end of file
diff --git a/memento-note/locales/pl.json b/memento-note/locales/pl.json
index df18822..72e0909 100644
--- a/memento-note/locales/pl.json
+++ b/memento-note/locales/pl.json
@@ -49,8 +49,8 @@
     "sortOldest": "Najpierw najstarszy",
     "sortAlpha": "A → Z",
     "accountMenu": "Menu konta",
-    "profile": "Profil",
-    "signOut": "Wyloguj się",
+    "profile": "Profile",
+    "signOut": "Sign out",
     "sortOrder": "Kolejność sortowania",
     "freezePinnedNotebook": "Przypnij kolejność paska bocznego notatnika",
     "unfreezePinnedNotebook": "Odepnij zamówienie na pasku bocznym notatnika",
@@ -58,14 +58,15 @@
     "renameNotebook": "Przemianować",
     "sharedNotebookBadge": "· Shared",
     "sortManual": "Dowolna kolejność",
-    "moveFailed": "Nie udało się przenieść notatnika",
-    "dropToRoot": "Upuść tutaj, aby przenieść do roota"
+    "moveFailed": "Failed to move notebook",
+    "dropToRoot": "Drop here to move to root",
+    "noReminders": "No active reminders."
   },
   "notes": {
     "title": "Notatki",
     "newNote": "Nowa notatka",
     "reorganize": "Reorganizuj notatki",
-    "untitled": "Bez tytułu",
+    "untitled": "Untitled",
     "placeholder": "Zrób notatkę...",
     "markdownPlaceholder": "Zrób notatkę... (Markdown obsługiwany)",
     "titlePlaceholder": "Tytuł",
@@ -81,12 +82,12 @@
     "add": "Dodaj",
     "adding": "Dodawanie...",
     "close": "Zamknij",
-    "confirmDelete": "Czy na pewno chcesz usunąć tę notatkę?",
+    "confirmDelete": "Are you sure you want to delete this note?",
     "confirmLeaveShare": "Czy na pewno chcesz opuścić tę udostępnioną notatkę?",
     "sharedBy": "Udostępnione przez",
     "sharedShort": "Wspólny",
     "leaveShare": "Opuść",
-    "delete": "Usuń",
+    "delete": "Delete",
     "archive": "Archiwizuj",
     "unarchive": "Przywróć z archiwum",
     "pin": "Przypnij",
@@ -127,7 +128,7 @@
     "duplicate": "Duplikuj",
     "share": "Udostępnij",
     "showCollaborators": "Pokaż współpracowników",
-    "pinned": "Przypięte",
+    "pinned": "Note pinned",
     "others": "Inne",
     "noNotes": "Brak notatek",
     "noNotesFound": "Nie znaleziono notatek",
@@ -159,8 +160,8 @@
     "recent": "Ostatnie",
     "addNote": "Dodaj notatkę",
     "readMore": "Czytaj więcej",
-    "remove": "Usuń",
-    "dragToReorder": "Przeciągnij, aby zmienić kolejność",
+    "remove": "Remove",
+    "dragToReorder": "Drag to reorder",
     "more": "Więcej",
     "emptyState": "Brak notatek tutaj",
     "metadataPanel": "Bliższe dane",
@@ -173,7 +174,7 @@
     "improveFailed": "Ulepszenie nie powiodło się",
     "transformFailed": "Przekształcenie nie powiodło się",
     "markdown": "Markdown",
-    "unpinned": "Odepnięta",
+    "unpinned": "Note unpinned",
     "redoShortcut": "Ponów (Ctrl+Y)",
     "undoShortcut": "Cofnij (Ctrl+Z)",
     "reorderTabs": "Zmień kolejność kart",
@@ -751,7 +752,7 @@
     "downloadFailed": "Pobieranie nie powiodło się"
   },
   "nav": {
-    "home": "Strona główna",
+    "home": "Home",
     "notes": "Notatki",
     "notebooks": "Notatniki",
     "generalNotes": "Notatki ogólne",
@@ -761,7 +762,7 @@
     "aiSettings": "Ustawienia AI",
     "logout": "Wyloguj",
     "login": "Zaloguj",
-    "adminDashboard": "Panel administracyjny",
+    "adminDashboard": "Admin Dashboard",
     "diagnostics": "Diagnostyka",
     "trash": "Kosz",
     "support": "Wspomóż Memento ☕",
@@ -786,7 +787,8 @@
     "proPlan": "Plan Pro",
     "chat": "Czat AI",
     "lab": "Laboratorium",
-    "agents": "Agenci"
+    "agents": "Agenci",
+    "sharedWithMe": "Shared with me"
   },
   "settings": {
     "title": "Ustawienia",
@@ -814,7 +816,7 @@
     "security": "Bezpieczeństwo",
     "about": "O aplikacji",
     "version": "Wersja",
-    "settingsSaved": "Ustawienia zapisane",
+    "settingsSaved": "Settings saved",
     "cardSizeMode": "Note Size",
     "cardSizeModeDescription": "Choose between variable sizes or uniform size",
     "selectCardSizeMode": "Select display mode",
@@ -835,14 +837,14 @@
     "semanticIndexingDescription": "Generuj wektory dla wszystkich notatek, aby umożliwić wyszukiwanie oparte na intencji",
     "profile": "Profil",
     "searchNoResults": "Nie znaleziono wyników",
-    "languageAuto": "Automatyczny",
+    "languageAuto": "Language set to Auto",
     "emailNotifications": "Powiadomienia e-mail",
     "emailNotificationsDesc": "Otrzymuj ważne powiadomienia przez e-mail",
     "desktopNotifications": "Powiadomienia na pulpicie",
     "desktopNotificationsDesc": "Otrzymuj powiadomienia w przeglądarce",
     "notificationsDesc": "Zarządzaj swoimi preferencjami powiadomień",
-    "autoSave": "Automatyczne zapisywanie",
-    "autoSaveDesc": "Automatycznie zapisuj zmiany podczas pisania"
+    "autoSave": "Auto-save",
+    "autoSaveDesc": "Automatically save changes while typing"
   },
   "profile": {
     "title": "Profil",
@@ -864,10 +866,10 @@
     "preferredLanguage": "Preferowany język",
     "selectLanguage": "Wybierz język",
     "languageDescription": "Ten język będzie używany do funkcji AI, analizy treści i tekstu interfejsu.",
-    "autoDetect": "Automatyczne wykrywanie",
+    "autoDetect": "Auto-detect",
     "updateSuccess": "Profil zaktualizowany",
     "updateFailed": "Nie udało się zaktualizować profilu",
-    "languageUpdateSuccess": "Język zaktualizowany pomyślnie",
+    "languageUpdateSuccess": "Language updated successfully",
     "languageUpdateFailed": "Nie udało się zaktualizować języka",
     "profileUpdated": "Profil zaktualizowany",
     "profileError": "Błąd aktualizacji profilu",
@@ -922,8 +924,8 @@
   },
   "general": {
     "loading": "Ładowanie...",
-    "save": "Zapisz",
-    "cancel": "Anuluj",
+    "save": "Save",
+    "cancel": "Cancel",
     "add": "Dodaj",
     "edit": "Edytuj",
     "confirm": "Potwierdź",
@@ -984,7 +986,7 @@
     "createNew": "Utwórz nowy notatnik",
     "createDescription": "Rozpocznij nową kolekcję, aby efektywnie organizować swoje notatki, pomysły i projekty.",
     "name": "Nazwa notatnika",
-    "namePlaceholder": "np. Strategia marketingowa Q4",
+    "namePlaceholder": "Notebook name",
     "myNotebook": "Mój notatnik",
     "saving": "Zapisywanie...",
     "selectIcon": "Ikona",
@@ -993,7 +995,7 @@
     "creating": "Tworzenie...",
     "edit": "Edytuj notatnik",
     "editDescription": "Zmień nazwę, ikonę i kolor swojego notatnika.",
-    "delete": "Usuń notatnik",
+    "delete": "Delete",
     "deleteWarning": "Czy na pewno chcesz usunąć ten notatnik? Notatki zostaną przeniesione do Notatek ogólnych.",
     "deleteConfirm": "Usuń",
     "summary": "Podsumowanie notatnika",
@@ -1012,7 +1014,10 @@
     "pinnedFrozenTooltip": "Przypięty notatnik — zamówienie zamrożone",
     "organizeNotebookWithAITooltip": "Uporządkuj ten notatnik za pomocą sztucznej inteligencji",
     "assistantRequiredForSummarize": "Aby podsumować, włącz AI Assistant w ustawieniach",
-    "createSubnotebook": "Dodaj podnotatnik"
+    "createSubnotebook": "Dodaj podnotatnik",
+    "createSubNotebook": "Add sub-notebook",
+    "rename": "Rename",
+    "moveToTrash": "Move to trash"
   },
   "notebookSuggestion": {
     "title": "Przenieść do {name}?",
@@ -1430,20 +1435,22 @@
   },
   "appearance": {
     "title": "Wygląd",
-    "description": "Dostosuj wygląd aplikacji",
+    "description": "Customize the interface",
     "notesViewDescription": "Wybierz sposób wyświetlania notatek na stronie głównej i w notatnikach.",
     "notesViewLabel": "Układ notatek",
     "notesViewTabs": "Karty (styl OneNote)",
     "notesViewMasonry": "Karty (siatka)",
     "notesViewList": "Lista (magazyn)",
-    "selectTheme": "Select theme",
-    "fontFamilyLabel": "Rodzina czcionek",
-    "fontFamilyDescription": "Wybierz czcionkę używaną w całej aplikacji",
+    "selectTheme": "Choose your preferred theme",
+    "fontFamilyLabel": "Font",
+    "fontFamilyDescription": "Choose the application's font",
     "selectFontFamily": "Inter jest zoptymalizowany pod kątem czytelności, Systemowa używa natywnej czcionki systemu operacyjnego",
-    "fontSystem": "Domyślna czcionka systemowa",
+    "fontSystem": "System",
     "fontInterDefault": "Inter (default)",
     "fontPlayfairDisplay": "Playfair Display",
-    "fontJetBrainsMono": "JetBrains Mono"
+    "fontJetBrainsMono": "JetBrains Mono",
+    "accentColorTitle": "Accent Color",
+    "accentColorDescription": "Set the main color of your workspace"
   },
   "generalSettings": {
     "title": "General",
@@ -1477,18 +1484,26 @@
   },
   "trash": {
     "title": "Kosz",
-    "empty": "Kosz jest pusty",
-    "emptyDescription": "Usunięte notatki pojawią się tutaj",
-    "restore": "Przywróć",
+    "empty": "Trash is empty",
+    "emptyDescription": "Deleted items will appear here. They are kept for 30 days before permanent deletion.",
+    "restore": "Restore",
     "deletePermanently": "Usuń trwale",
     "noteTrashed": "Notatka przeniesiona do kosza",
     "noteRestored": "Notatka przywrócona",
     "notePermanentlyDeleted": "Notatka trwale usunięta",
     "emptyTrash": "Opróżnij kosz",
-    "emptyTrashConfirm": "Trwale usunąć wszystkie notatki z kosza?",
+    "emptyTrashConfirm": "Empty trash? This is irreversible.",
     "emptyTrashSuccess": "Kosz opróżniony",
-    "permanentDelete": "Usuń trwale",
-    "permanentDeleteConfirm": "Ta notatka zostanie trwale usunięta. Ta operacja jest nieodwracalna."
+    "permanentDelete": "Delete permanently",
+    "permanentDeleteConfirm": "Ta notatka zostanie trwale usunięta. Ta operacja jest nieodwracalna.",
+    "restoreSuccess": "Restored successfully",
+    "restoreError": "Failed to restore",
+    "permanentDeleteSuccess": "Permanently deleted",
+    "deleteError": "Failed to delete",
+    "daysRemaining": "DAYS LEFT",
+    "notebookContentPreserved": "Notebook content preserved",
+    "notebookRestoreHint": "Restoring a notebook also restores all its notes.",
+    "filterAll": "All"
   },
   "footer": {
     "privacy": "Prywatność",
@@ -1583,7 +1598,23 @@
       "chinese": "chiński",
       "japanese": "japoński"
     },
-    "customPlaceholder": "np. Arabski, rosyjski…"
+    "customPlaceholder": "np. Arabski, rosyjski…",
+    "autoDetect": "Auto-detect",
+    "en": "English",
+    "fr": "Français",
+    "es": "Español",
+    "de": "Deutsch",
+    "fa": "فارسی",
+    "it": "Italiano",
+    "pt": "Português",
+    "ru": "Русский",
+    "zh": "中文",
+    "ja": "日本語",
+    "ko": "한국어",
+    "ar": "العربية",
+    "hi": "हिन्दी",
+    "nl": "Nederlands",
+    "pl": "Polski"
   },
   "common": {
     "unknown": "Nieznany",
@@ -1591,16 +1622,16 @@
     "loading": "Ładowanie...",
     "error": "Błąd",
     "success": "Sukces",
-    "confirm": "Potwierdź",
-    "cancel": "Anuluj",
+    "confirm": "Confirm",
+    "cancel": "Cancel",
     "close": "Zamknij",
     "save": "Zapisz",
     "delete": "Usuń",
     "edit": "Edytuj",
     "add": "Dodaj",
     "remove": "Usuń",
-    "search": "Szukaj",
-    "noResults": "Brak wyników",
+    "search": "Search...",
+    "noResults": "No notes found",
     "required": "Wymagane",
     "optional": "Opcjonalne"
   },
@@ -1982,7 +2013,9 @@
     "searching": "Wyszukiwanie...",
     "noNotesFoundForContext": "Nie znaleziono odpowiednich notatek dla tego pytania. Odpowiedz używając ogólnej wiedzy.",
     "webSearch": "Wyszukiwanie w sieci",
-    "timeoutWarning": "Response is taking longer than expected..."
+    "timeoutWarning": "Response is taking longer than expected...",
+    "quotaExceededBasic": "AI Chat is available from the PRO plan onwards.",
+    "quotaExceededTier": "Monthly quota reached for {tier} plan. It will reset next month."
   },
   "labHeader": {
     "title": "Laboratorium",
@@ -2550,5 +2583,13 @@
         "link2Href": "#"
       }
     }
+  },
+  "noteHistory": {
+    "title": "Title",
+    "content": "Content",
+    "untitled": "Untitled",
+    "emptyState": "No versions available",
+    "selectVersion": "Select a version to preview its content",
+    "currentVersion": "current"
   }
-}
+}
\ No newline at end of file
diff --git a/memento-note/locales/pt.json b/memento-note/locales/pt.json
index 3b1dd2a..0b07376 100644
--- a/memento-note/locales/pt.json
+++ b/memento-note/locales/pt.json
@@ -49,8 +49,8 @@
     "sortOldest": "Mais antigo primeiro",
     "sortAlpha": "A → Z",
     "accountMenu": "Menu da conta",
-    "profile": "Perfil",
-    "signOut": "sair",
+    "profile": "Profile",
+    "signOut": "Sign out",
     "sortOrder": "Ordem de classificação",
     "freezePinnedNotebook": "Fixar ordem da barra lateral do notebook",
     "unfreezePinnedNotebook": "Liberar ordem da barra lateral do notebook",
@@ -58,14 +58,15 @@
     "renameNotebook": "Renomear",
     "sharedNotebookBadge": "· Shared",
     "sortManual": "Ordem livre",
-    "moveFailed": "Falha ao mover o caderno",
-    "dropToRoot": "Solte aqui para mover para a raiz"
+    "moveFailed": "Failed to move notebook",
+    "dropToRoot": "Drop here to move to root",
+    "noReminders": "No active reminders."
   },
   "notes": {
     "title": "Notas",
     "newNote": "Nova nota",
     "reorganize": "Reorganizar notas",
-    "untitled": "Sem título",
+    "untitled": "Untitled",
     "placeholder": "Faça uma nota...",
     "markdownPlaceholder": "Faça uma nota... (Markdown suportado)",
     "titlePlaceholder": "Título",
@@ -81,12 +82,12 @@
     "add": "Adicionar",
     "adding": "Adicionando...",
     "close": "Fechar",
-    "confirmDelete": "Tem certeza de que deseja excluir esta nota?",
+    "confirmDelete": "Are you sure you want to delete this note?",
     "confirmLeaveShare": "Tem certeza de que deseja sair desta nota compartilhada?",
     "sharedBy": "Compartilhado por",
     "sharedShort": "Compartilhado",
     "leaveShare": "Sair",
-    "delete": "Excluir",
+    "delete": "Delete",
     "archive": "Arquivar",
     "unarchive": "Desarquivar",
     "pin": "Fixar",
@@ -127,7 +128,7 @@
     "duplicate": "Duplicar",
     "share": "Compartilhar",
     "showCollaborators": "Mostrar colaboradores",
-    "pinned": "Fixadas",
+    "pinned": "Note pinned",
     "others": "Outros",
     "noNotes": "Sem notas",
     "noNotesFound": "Nenhuma nota encontrada",
@@ -159,8 +160,8 @@
     "recent": "Recentes",
     "addNote": "Adicionar nota",
     "readMore": "Ler mais",
-    "remove": "Remover",
-    "dragToReorder": "Arraste para reordenar",
+    "remove": "Remove",
+    "dragToReorder": "Drag to reorder",
     "more": "Mais",
     "emptyState": "Nenhuma nota aqui",
     "metadataPanel": "Detalhes",
@@ -173,7 +174,7 @@
     "improveFailed": "Falha ao melhorar",
     "transformFailed": "Falha ao transformar",
     "markdown": "Markdown",
-    "unpinned": "Desafixado",
+    "unpinned": "Note unpinned",
     "redoShortcut": "Refazer (Ctrl+Y)",
     "undoShortcut": "Desfazer (Ctrl+Z)",
     "reorderTabs": "Reordenar aba",
@@ -751,7 +752,7 @@
     "downloadFailed": "Falha no download"
   },
   "nav": {
-    "home": "Início",
+    "home": "Home",
     "notes": "Notas",
     "notebooks": "Cadernos",
     "generalNotes": "Notas gerais",
@@ -761,7 +762,7 @@
     "aiSettings": "Configurações de IA",
     "logout": "Sair",
     "login": "Entrar",
-    "adminDashboard": "Painel de administração",
+    "adminDashboard": "Admin Dashboard",
     "diagnostics": "Diagnósticos",
     "trash": "Lixeira",
     "support": "Apoie o Memento ☕",
@@ -786,7 +787,8 @@
     "proPlan": "Plano Pro",
     "chat": "Chat IA",
     "lab": "O Laboratório",
-    "agents": "Agentes"
+    "agents": "Agentes",
+    "sharedWithMe": "Shared with me"
   },
   "settings": {
     "title": "Configurações",
@@ -814,7 +816,7 @@
     "security": "Segurança",
     "about": "Sobre",
     "version": "Versão",
-    "settingsSaved": "Configurações salvas",
+    "settingsSaved": "Settings saved",
     "cardSizeMode": "Note Size",
     "cardSizeModeDescription": "Choose between variable sizes or uniform size",
     "selectCardSizeMode": "Select display mode",
@@ -835,14 +837,14 @@
     "semanticIndexingDescription": "Gere vetores para todas as notas para ativar a pesquisa baseada em intenção",
     "profile": "Perfil",
     "searchNoResults": "Nenhum resultado encontrado",
-    "languageAuto": "Automático",
+    "languageAuto": "Language set to Auto",
     "emailNotifications": "Notificações por e-mail",
     "emailNotificationsDesc": "Receba notificações importantes por e-mail",
     "desktopNotifications": "Notificações na área de trabalho",
     "desktopNotificationsDesc": "Receba notificações no seu navegador",
     "notificationsDesc": "Gerencie suas preferências de notificação",
-    "autoSave": "Salvar automaticamente",
-    "autoSaveDesc": "Salvar alterações automaticamente enquanto digita"
+    "autoSave": "Auto-save",
+    "autoSaveDesc": "Automatically save changes while typing"
   },
   "profile": {
     "title": "Perfil",
@@ -864,10 +866,10 @@
     "preferredLanguage": "Idioma preferido",
     "selectLanguage": "Selecione um idioma",
     "languageDescription": "Este idioma será usado para recursos com IA, análise de conteúdo e texto da interface.",
-    "autoDetect": "Detecção automática",
+    "autoDetect": "Auto-detect",
     "updateSuccess": "Perfil atualizado",
     "updateFailed": "Falha ao atualizar perfil",
-    "languageUpdateSuccess": "Idioma atualizado com sucesso",
+    "languageUpdateSuccess": "Language updated successfully",
     "languageUpdateFailed": "Falha ao atualizar idioma",
     "profileUpdated": "Perfil atualizado",
     "profileError": "Erro ao atualizar perfil",
@@ -922,8 +924,8 @@
   },
   "general": {
     "loading": "Carregando...",
-    "save": "Salvar",
-    "cancel": "Cancelar",
+    "save": "Save",
+    "cancel": "Cancel",
     "add": "Adicionar",
     "edit": "Editar",
     "confirm": "Confirmar",
@@ -984,7 +986,7 @@
     "createNew": "Criar novo caderno",
     "createDescription": "Inicie uma nova coleção para organizar suas notas, ideias e projetos de forma eficiente.",
     "name": "Nome do caderno",
-    "namePlaceholder": "ex. Estratégia de Marketing Q4",
+    "namePlaceholder": "Notebook name",
     "myNotebook": "Meu Caderno",
     "saving": "Salvando...",
     "selectIcon": "Ícone",
@@ -993,7 +995,7 @@
     "creating": "Criando...",
     "edit": "Editar caderno",
     "editDescription": "Mude o nome, ícone e cor do seu caderno.",
-    "delete": "Excluir caderno",
+    "delete": "Delete",
     "deleteWarning": "Tem certeza de que deseja excluir este caderno? As notas serão movidas para Notas Gerais.",
     "deleteConfirm": "Excluir",
     "summary": "Resumo do caderno",
@@ -1012,7 +1014,10 @@
     "pinnedFrozenTooltip": "Caderno fixado – pedido congelado",
     "organizeNotebookWithAITooltip": "Organize este notebook com IA",
     "assistantRequiredForSummarize": "Ative o AI Assistant nas configurações para resumir",
-    "createSubnotebook": "Adicionar sub-notebook"
+    "createSubnotebook": "Adicionar sub-notebook",
+    "createSubNotebook": "Add sub-notebook",
+    "rename": "Rename",
+    "moveToTrash": "Move to trash"
   },
   "notebookSuggestion": {
     "title": "Mover para {name}?",
@@ -1430,20 +1435,22 @@
   },
   "appearance": {
     "title": "Aparência",
-    "description": "Personalize a aparência do aplicativo",
+    "description": "Customize the interface",
     "notesViewDescription": "Escolha como as notas são exibidas na página inicial e nos cadernos.",
     "notesViewLabel": "Layout das notas",
     "notesViewTabs": "Abas (estilo OneNote)",
     "notesViewMasonry": "Cartões (grade)",
     "notesViewList": "Lista (revista)",
-    "selectTheme": "Select theme",
-    "fontFamilyLabel": "Família de fontes",
-    "fontFamilyDescription": "Escolha a fonte usada em todo o aplicativo",
+    "selectTheme": "Choose your preferred theme",
+    "fontFamilyLabel": "Font",
+    "fontFamilyDescription": "Choose the application's font",
     "selectFontFamily": "Inter é otimizado para legibilidade, Sistema usa a fonte nativa do seu sistema operacional",
-    "fontSystem": "Fonte padrão do sistema",
+    "fontSystem": "System",
     "fontInterDefault": "Inter (default)",
     "fontPlayfairDisplay": "Playfair Display",
-    "fontJetBrainsMono": "JetBrains Mono"
+    "fontJetBrainsMono": "JetBrains Mono",
+    "accentColorTitle": "Accent Color",
+    "accentColorDescription": "Set the main color of your workspace"
   },
   "generalSettings": {
     "title": "General",
@@ -1477,18 +1484,26 @@
   },
   "trash": {
     "title": "Lixeira",
-    "empty": "A lixeira está vazia",
-    "emptyDescription": "As notas excluídas aparecerão aqui",
-    "restore": "Restaurar",
+    "empty": "Trash is empty",
+    "emptyDescription": "Deleted items will appear here. They are kept for 30 days before permanent deletion.",
+    "restore": "Restore",
     "deletePermanently": "Excluir permanentemente",
     "noteTrashed": "Nota movida para a lixeira",
     "noteRestored": "Nota restaurada",
     "notePermanentlyDeleted": "Nota excluída permanentemente",
     "emptyTrash": "Esvaziar lixeira",
-    "emptyTrashConfirm": "Excluir permanentemente todas as notas da lixeira?",
+    "emptyTrashConfirm": "Empty trash? This is irreversible.",
     "emptyTrashSuccess": "Lixeira esvaziada",
-    "permanentDelete": "Excluir permanentemente",
-    "permanentDeleteConfirm": "Esta nota será excluída permanentemente. Esta ação não pode ser desfeita."
+    "permanentDelete": "Delete permanently",
+    "permanentDeleteConfirm": "Esta nota será excluída permanentemente. Esta ação não pode ser desfeita.",
+    "restoreSuccess": "Restored successfully",
+    "restoreError": "Failed to restore",
+    "permanentDeleteSuccess": "Permanently deleted",
+    "deleteError": "Failed to delete",
+    "daysRemaining": "DAYS LEFT",
+    "notebookContentPreserved": "Notebook content preserved",
+    "notebookRestoreHint": "Restoring a notebook also restores all its notes.",
+    "filterAll": "All"
   },
   "footer": {
     "privacy": "Privacidade",
@@ -1583,7 +1598,23 @@
       "chinese": "chinês",
       "japanese": "japonês"
     },
-    "customPlaceholder": "por exemplo Árabe, russo…"
+    "customPlaceholder": "por exemplo Árabe, russo…",
+    "autoDetect": "Auto-detect",
+    "en": "English",
+    "fr": "Français",
+    "es": "Español",
+    "de": "Deutsch",
+    "fa": "فارسی",
+    "it": "Italiano",
+    "pt": "Português",
+    "ru": "Русский",
+    "zh": "中文",
+    "ja": "日本語",
+    "ko": "한국어",
+    "ar": "العربية",
+    "hi": "हिन्दी",
+    "nl": "Nederlands",
+    "pl": "Polski"
   },
   "common": {
     "unknown": "Desconhecido",
@@ -1591,16 +1622,16 @@
     "loading": "Carregando...",
     "error": "Erro",
     "success": "Sucesso",
-    "confirm": "Confirmar",
-    "cancel": "Cancelar",
+    "confirm": "Confirm",
+    "cancel": "Cancel",
     "close": "Fechar",
     "save": "Salvar",
     "delete": "Excluir",
     "edit": "Editar",
     "add": "Adicionar",
     "remove": "Remover",
-    "search": "Pesquisar",
-    "noResults": "Sem resultados",
+    "search": "Search...",
+    "noResults": "No notes found",
     "required": "Obrigatório",
     "optional": "Opcional"
   },
@@ -1982,7 +2013,9 @@
     "searching": "Pesquisando...",
     "noNotesFoundForContext": "Nenhuma nota relevante encontrada para esta pergunta. Responda com seu conhecimento geral.",
     "webSearch": "Pesquisa na web",
-    "timeoutWarning": "Response is taking longer than expected..."
+    "timeoutWarning": "Response is taking longer than expected...",
+    "quotaExceededBasic": "AI Chat is available from the PRO plan onwards.",
+    "quotaExceededTier": "Monthly quota reached for {tier} plan. It will reset next month."
   },
   "labHeader": {
     "title": "O Laboratório",
@@ -2550,5 +2583,13 @@
         "link2Href": "#"
       }
     }
+  },
+  "noteHistory": {
+    "title": "Title",
+    "content": "Content",
+    "untitled": "Untitled",
+    "emptyState": "No versions available",
+    "selectVersion": "Select a version to preview its content",
+    "currentVersion": "current"
   }
-}
+}
\ No newline at end of file
diff --git a/memento-note/locales/ru.json b/memento-note/locales/ru.json
index 21f47f3..df30027 100644
--- a/memento-note/locales/ru.json
+++ b/memento-note/locales/ru.json
@@ -49,8 +49,8 @@
     "sortOldest": "Сначала самый старый",
     "sortAlpha": "А → Я",
     "accountMenu": "Меню аккаунта",
-    "profile": "Профиль",
-    "signOut": "выход",
+    "profile": "Profile",
+    "signOut": "Sign out",
     "sortOrder": "Порядок сортировки",
     "freezePinnedNotebook": "Закрепить порядок на боковой панели блокнота",
     "unfreezePinnedNotebook": "Открепить порядок боковой панели блокнота",
@@ -58,14 +58,15 @@
     "renameNotebook": "Переименовать",
     "sharedNotebookBadge": "· Shared",
     "sortManual": "Свободный порядок",
-    "moveFailed": "Не удалось переместить блокнот",
-    "dropToRoot": "Перетащите сюда для перемещения в корень"
+    "moveFailed": "Failed to move notebook",
+    "dropToRoot": "Drop here to move to root",
+    "noReminders": "No active reminders."
   },
   "notes": {
     "title": "Заметки",
     "newNote": "Новая заметка",
     "reorganize": "Реорганизация заметок",
-    "untitled": "Без названия",
+    "untitled": "Untitled",
     "placeholder": "Сделайте заметку...",
     "markdownPlaceholder": "Сделайте заметку... (Поддерживается Markdown)",
     "titlePlaceholder": "Заголовок",
@@ -81,12 +82,12 @@
     "add": "Добавить",
     "adding": "Добавление...",
     "close": "Закрыть",
-    "confirmDelete": "Вы уверены, что хотите удалить эту заметку?",
+    "confirmDelete": "Are you sure you want to delete this note?",
     "confirmLeaveShare": "Вы уверены, что хотите покинуть эту общую заметку?",
     "sharedBy": "Поделился",
     "sharedShort": "Общий",
     "leaveShare": "Покинуть",
-    "delete": "Удалить",
+    "delete": "Delete",
     "archive": "Архивировать",
     "unarchive": "Разархивировать",
     "pin": "Закрепить",
@@ -127,7 +128,7 @@
     "duplicate": "Дублировать",
     "share": "Поделиться",
     "showCollaborators": "Показать соавторов",
-    "pinned": "Закреплённые",
+    "pinned": "Note pinned",
     "others": "Другие",
     "noNotes": "Нет заметок",
     "noNotesFound": "Заметки не найдены",
@@ -159,8 +160,8 @@
     "recent": "Недавние",
     "addNote": "Добавить заметку",
     "readMore": "Читать далее",
-    "remove": "Удалить",
-    "dragToReorder": "Перетащите для изменения порядка",
+    "remove": "Remove",
+    "dragToReorder": "Drag to reorder",
     "more": "Ещё",
     "emptyState": "Здесь нет заметок",
     "metadataPanel": "Подробности",
@@ -173,7 +174,7 @@
     "improveFailed": "Ошибка улучшения",
     "transformFailed": "Ошибка преобразования",
     "markdown": "Markdown",
-    "unpinned": "Откреплённая",
+    "unpinned": "Note unpinned",
     "redoShortcut": "Повторить (Ctrl+Y)",
     "undoShortcut": "Отменить (Ctrl+Z)",
     "reorderTabs": "Изменить порядок вкладок",
@@ -751,7 +752,7 @@
     "downloadFailed": "Загрузка не удалась"
   },
   "nav": {
-    "home": "Главная",
+    "home": "Home",
     "notes": "Заметки",
     "notebooks": "Блокноты",
     "generalNotes": "Общие заметки",
@@ -761,7 +762,7 @@
     "aiSettings": "Настройки ИИ",
     "logout": "Выйти",
     "login": "Войти",
-    "adminDashboard": "Панель администратора",
+    "adminDashboard": "Admin Dashboard",
     "diagnostics": "Диагностика",
     "trash": "Корзина",
     "support": "Поддержать Memento ☕",
@@ -786,7 +787,8 @@
     "proPlan": "Про-план",
     "chat": "ИИ-чат",
     "lab": "Лаборатория",
-    "agents": "Агенты"
+    "agents": "Агенты",
+    "sharedWithMe": "Shared with me"
   },
   "settings": {
     "title": "Настройки",
@@ -814,7 +816,7 @@
     "security": "Безопасность",
     "about": "О программе",
     "version": "Версия",
-    "settingsSaved": "Настройки сохранены",
+    "settingsSaved": "Settings saved",
     "cardSizeMode": "Note Size",
     "cardSizeModeDescription": "Choose between variable sizes or uniform size",
     "selectCardSizeMode": "Select display mode",
@@ -835,14 +837,14 @@
     "semanticIndexingDescription": "Создать векторы для всех заметок для поиска по смыслу",
     "profile": "Профиль",
     "searchNoResults": "Результаты не найдены",
-    "languageAuto": "Автоматически",
+    "languageAuto": "Language set to Auto",
     "emailNotifications": "Email-уведомления",
     "emailNotificationsDesc": "Получать важные уведомления по email",
     "desktopNotifications": "Уведомления на рабочем столе",
     "desktopNotificationsDesc": "Получать уведомления в браузере",
     "notificationsDesc": "Управление настройками уведомлений",
-    "autoSave": "Автосохранение",
-    "autoSaveDesc": "Автоматически сохранять изменения во время ввода"
+    "autoSave": "Auto-save",
+    "autoSaveDesc": "Automatically save changes while typing"
   },
   "profile": {
     "title": "Профиль",
@@ -864,10 +866,10 @@
     "preferredLanguage": "Предпочитаемый язык",
     "selectLanguage": "Выберите язык",
     "languageDescription": "Этот язык будет использоваться для функций на базе ИИ, анализа содержимого и текста интерфейса.",
-    "autoDetect": "Автоопределение",
+    "autoDetect": "Auto-detect",
     "updateSuccess": "Профиль обновлён",
     "updateFailed": "Не удалось обновить профиль",
-    "languageUpdateSuccess": "Язык успешно обновлён",
+    "languageUpdateSuccess": "Language updated successfully",
     "languageUpdateFailed": "Не удалось обновить язык",
     "profileUpdated": "Профиль обновлён",
     "profileError": "Ошибка обновления профиля",
@@ -922,8 +924,8 @@
   },
   "general": {
     "loading": "Загрузка...",
-    "save": "Сохранить",
-    "cancel": "Отмена",
+    "save": "Save",
+    "cancel": "Cancel",
     "add": "Добавить",
     "edit": "Редактировать",
     "confirm": "Подтвердить",
@@ -984,7 +986,7 @@
     "createNew": "Создать новый блокнот",
     "createDescription": "Начните новую коллекцию для эффективной организации ваших заметок, идей и проектов.",
     "name": "Название блокнота",
-    "namePlaceholder": "напр. Маркетинговая стратегия Q4",
+    "namePlaceholder": "Notebook name",
     "myNotebook": "Мой блокнот",
     "saving": "Сохранение...",
     "selectIcon": "Значок",
@@ -993,7 +995,7 @@
     "creating": "Создание...",
     "edit": "Редактировать блокнот",
     "editDescription": "Измените название, значок и цвет вашего блокнота.",
-    "delete": "Удалить блокнот",
+    "delete": "Delete",
     "deleteWarning": "Вы уверены, что хотите удалить этот блокнот? Заметки будут перемещены в Общие заметки.",
     "deleteConfirm": "Удалить",
     "summary": "Сводка блокнота",
@@ -1012,7 +1014,10 @@
     "pinnedFrozenTooltip": "Прикрепленный блокнот — заказ заморожен",
     "organizeNotebookWithAITooltip": "Организуйте этот блокнот с помощью ИИ",
     "assistantRequiredForSummarize": "Включите AI Assistant в настройках, чтобы подводить итоги.",
-    "createSubnotebook": "Добавить субноутбук"
+    "createSubnotebook": "Добавить субноутбук",
+    "createSubNotebook": "Add sub-notebook",
+    "rename": "Rename",
+    "moveToTrash": "Move to trash"
   },
   "notebookSuggestion": {
     "title": "Переместить в {name}?",
@@ -1430,20 +1435,22 @@
   },
   "appearance": {
     "title": "Внешний вид",
-    "description": "Настройте внешний вид приложения",
+    "description": "Customize the interface",
     "notesViewDescription": "Выберите, как отображаются заметки на главной странице и в блокнотах.",
     "notesViewLabel": "Макет заметок",
     "notesViewTabs": "Вкладки (в стиле OneNote)",
     "notesViewMasonry": "Карточки (сетка)",
     "notesViewList": "Список (журнал)",
-    "selectTheme": "Select theme",
-    "fontFamilyLabel": "Семейство шрифтов",
-    "fontFamilyDescription": "Выберите шрифт, используемый во всём приложении",
+    "selectTheme": "Choose your preferred theme",
+    "fontFamilyLabel": "Font",
+    "fontFamilyDescription": "Choose the application's font",
     "selectFontFamily": "Inter оптимизирован для читаемости, Системный использует нативный шрифт вашей ОС",
-    "fontSystem": "Системный шрифт по умолчанию",
+    "fontSystem": "System",
     "fontInterDefault": "Inter (default)",
     "fontPlayfairDisplay": "Playfair Display",
-    "fontJetBrainsMono": "JetBrains Mono"
+    "fontJetBrainsMono": "JetBrains Mono",
+    "accentColorTitle": "Accent Color",
+    "accentColorDescription": "Set the main color of your workspace"
   },
   "generalSettings": {
     "title": "General",
@@ -1477,18 +1484,26 @@
   },
   "trash": {
     "title": "Корзина",
-    "empty": "Корзина пуста",
-    "emptyDescription": "Удалённые заметки появятся здесь",
-    "restore": "Восстановить",
+    "empty": "Trash is empty",
+    "emptyDescription": "Deleted items will appear here. They are kept for 30 days before permanent deletion.",
+    "restore": "Restore",
     "deletePermanently": "Удалить навсегда",
     "noteTrashed": "Заметка перемещена в корзину",
     "noteRestored": "Заметка восстановлена",
     "notePermanentlyDeleted": "Заметка удалена навсегда",
     "emptyTrash": "Очистить корзину",
-    "emptyTrashConfirm": "Удалить навсегда все заметки из корзины?",
+    "emptyTrashConfirm": "Empty trash? This is irreversible.",
     "emptyTrashSuccess": "Корзина очищена",
-    "permanentDelete": "Удалить навсегда",
-    "permanentDeleteConfirm": "Эта заметка будет удалена навсегда. Это действие нельзя отменить."
+    "permanentDelete": "Delete permanently",
+    "permanentDeleteConfirm": "Эта заметка будет удалена навсегда. Это действие нельзя отменить.",
+    "restoreSuccess": "Restored successfully",
+    "restoreError": "Failed to restore",
+    "permanentDeleteSuccess": "Permanently deleted",
+    "deleteError": "Failed to delete",
+    "daysRemaining": "DAYS LEFT",
+    "notebookContentPreserved": "Notebook content preserved",
+    "notebookRestoreHint": "Restoring a notebook also restores all its notes.",
+    "filterAll": "All"
   },
   "footer": {
     "privacy": "Конфиденциальность",
@@ -1583,7 +1598,23 @@
       "chinese": "китайский",
       "japanese": "японский"
     },
-    "customPlaceholder": "например арабский, русский…"
+    "customPlaceholder": "например арабский, русский…",
+    "autoDetect": "Auto-detect",
+    "en": "English",
+    "fr": "Français",
+    "es": "Español",
+    "de": "Deutsch",
+    "fa": "فارسی",
+    "it": "Italiano",
+    "pt": "Português",
+    "ru": "Русский",
+    "zh": "中文",
+    "ja": "日本語",
+    "ko": "한국어",
+    "ar": "العربية",
+    "hi": "हिन्दी",
+    "nl": "Nederlands",
+    "pl": "Polski"
   },
   "common": {
     "unknown": "Неизвестно",
@@ -1591,16 +1622,16 @@
     "loading": "Загрузка...",
     "error": "Ошибка",
     "success": "Успешно",
-    "confirm": "Подтвердить",
-    "cancel": "Отмена",
+    "confirm": "Confirm",
+    "cancel": "Cancel",
     "close": "Закрыть",
     "save": "Сохранить",
     "delete": "Удалить",
     "edit": "Редактировать",
     "add": "Добавить",
     "remove": "Удалить",
-    "search": "Поиск",
-    "noResults": "Нет результатов",
+    "search": "Search...",
+    "noResults": "No notes found",
     "required": "Обязательно",
     "optional": "Необязательно"
   },
@@ -1982,7 +2013,9 @@
     "searching": "Поиск...",
     "noNotesFoundForContext": "Не найдено заметок по этому вопросу. Ответьте, используя свои общие знания.",
     "webSearch": "Веб-поиск",
-    "timeoutWarning": "Response is taking longer than expected..."
+    "timeoutWarning": "Response is taking longer than expected...",
+    "quotaExceededBasic": "AI Chat is available from the PRO plan onwards.",
+    "quotaExceededTier": "Monthly quota reached for {tier} plan. It will reset next month."
   },
   "labHeader": {
     "title": "Лаборатория",
@@ -2550,5 +2583,13 @@
         "link2Href": "#"
       }
     }
+  },
+  "noteHistory": {
+    "title": "Title",
+    "content": "Content",
+    "untitled": "Untitled",
+    "emptyState": "No versions available",
+    "selectVersion": "Select a version to preview its content",
+    "currentVersion": "current"
   }
-}
+}
\ No newline at end of file
diff --git a/memento-note/locales/zh.json b/memento-note/locales/zh.json
index f238b61..48e2be4 100644
--- a/memento-note/locales/zh.json
+++ b/memento-note/locales/zh.json
@@ -49,8 +49,8 @@
     "sortOldest": "最老的在前",
     "sortAlpha": "A → Z",
     "accountMenu": "账户菜单",
-    "profile": "轮廓",
-    "signOut": "登出",
+    "profile": "Profile",
+    "signOut": "Sign out",
     "sortOrder": "排序顺序",
     "freezePinnedNotebook": "固定笔记本侧边栏顺序",
     "unfreezePinnedNotebook": "取消固定笔记本侧边栏顺序",
@@ -58,14 +58,15 @@
     "renameNotebook": "重命名",
     "sharedNotebookBadge": "· Shared",
     "sortManual": "自定义顺序",
-    "moveFailed": "移动笔记本失败",
-    "dropToRoot": "拖放到此处移至根级别"
+    "moveFailed": "Failed to move notebook",
+    "dropToRoot": "Drop here to move to root",
+    "noReminders": "No active reminders."
   },
   "notes": {
     "title": "笔记",
     "newNote": "新建笔记",
     "reorganize": "重新整理笔记",
-    "untitled": "无标题",
+    "untitled": "Untitled",
     "placeholder": "记笔记...",
     "markdownPlaceholder": "记笔记...（支持 Markdown）",
     "titlePlaceholder": "标题",
@@ -81,12 +82,12 @@
     "add": "添加",
     "adding": "添加中...",
     "close": "关闭",
-    "confirmDelete": "确定要删除这条笔记吗？",
+    "confirmDelete": "Are you sure you want to delete this note?",
     "confirmLeaveShare": "确定要离开这条共享笔记吗？",
     "sharedBy": "共享者",
     "sharedShort": "共享",
     "leaveShare": "离开",
-    "delete": "删除",
+    "delete": "Delete",
     "archive": "归档",
     "unarchive": "取消归档",
     "pin": "置顶",
@@ -127,7 +128,7 @@
     "duplicate": "复制",
     "share": "共享",
     "showCollaborators": "显示协作者",
-    "pinned": "已置顶",
+    "pinned": "Note pinned",
     "others": "其他",
     "noNotes": "无笔记",
     "noNotesFound": "未找到笔记",
@@ -159,8 +160,8 @@
     "recent": "最近",
     "addNote": "添加笔记",
     "readMore": "阅读全文",
-    "remove": "移除",
-    "dragToReorder": "拖动以重新排序",
+    "remove": "Remove",
+    "dragToReorder": "Drag to reorder",
     "more": "更多",
     "emptyState": "暂无笔记",
     "metadataPanel": "细节",
@@ -173,7 +174,7 @@
     "improveFailed": "改进失败",
     "transformFailed": "转换失败",
     "markdown": "Markdown",
-    "unpinned": "未置顶",
+    "unpinned": "Note unpinned",
     "redoShortcut": "重做 (Ctrl+Y)",
     "undoShortcut": "撤销 (Ctrl+Z)",
     "reorderTabs": "重新排序标签页",
@@ -751,7 +752,7 @@
     "downloadFailed": "下载失败"
   },
   "nav": {
-    "home": "主页",
+    "home": "Home",
     "notes": "笔记",
     "notebooks": "笔记本",
     "generalNotes": "普通笔记",
@@ -761,7 +762,7 @@
     "aiSettings": "AI 设置",
     "logout": "退出登录",
     "login": "登录",
-    "adminDashboard": "管理后台",
+    "adminDashboard": "Admin Dashboard",
     "diagnostics": "诊断",
     "trash": "回收站",
     "support": "支持 Memento ☕",
@@ -786,7 +787,8 @@
     "proPlan": "专业版",
     "chat": "AI 聊天",
     "lab": "实验室",
-    "agents": "代理"
+    "agents": "代理",
+    "sharedWithMe": "Shared with me"
   },
   "settings": {
     "title": "设置",
@@ -814,7 +816,7 @@
     "security": "安全",
     "about": "关于",
     "version": "版本",
-    "settingsSaved": "设置已保存",
+    "settingsSaved": "Settings saved",
     "cardSizeMode": "Note Size",
     "cardSizeModeDescription": "Choose between variable sizes or uniform size",
     "selectCardSizeMode": "Select display mode",
@@ -835,14 +837,14 @@
     "semanticIndexingDescription": "为所有笔记生成向量以启用基于意图的搜索",
     "profile": "个人资料",
     "searchNoResults": "未找到匹配的设置",
-    "languageAuto": "自动检测",
+    "languageAuto": "Language set to Auto",
     "emailNotifications": "电子邮件通知",
     "emailNotificationsDesc": "通过电子邮件接收重要通知",
     "desktopNotifications": "桌面通知",
     "desktopNotificationsDesc": "在浏览器中接收通知",
     "notificationsDesc": "管理您的通知偏好",
-    "autoSave": "自动保存",
-    "autoSaveDesc": "键入时自动保存更改"
+    "autoSave": "Auto-save",
+    "autoSaveDesc": "Automatically save changes while typing"
   },
   "profile": {
     "title": "个人资料",
@@ -864,10 +866,10 @@
     "preferredLanguage": "首选语言",
     "selectLanguage": "选择语言",
     "languageDescription": "此语言将用于 AI 驱动的功能、内容分析和界面文本。",
-    "autoDetect": "自动检测",
+    "autoDetect": "Auto-detect",
     "updateSuccess": "个人资料已更新",
     "updateFailed": "更新个人资料失败",
-    "languageUpdateSuccess": "语言更新成功",
+    "languageUpdateSuccess": "Language updated successfully",
     "languageUpdateFailed": "更新语言失败",
     "profileUpdated": "个人资料已更新",
     "profileError": "更新个人资料时出错",
@@ -922,8 +924,8 @@
   },
   "general": {
     "loading": "加载中...",
-    "save": "保存",
-    "cancel": "取消",
+    "save": "Save",
+    "cancel": "Cancel",
     "add": "添加",
     "edit": "编辑",
     "confirm": "确认",
@@ -984,7 +986,7 @@
     "createNew": "创建新笔记本",
     "createDescription": "开始一个新的集合，高效地组织您的笔记、想法和项目。",
     "name": "笔记本名称",
-    "namePlaceholder": "例如：第四季度营销策略",
+    "namePlaceholder": "Notebook name",
     "myNotebook": "我的笔记本",
     "saving": "保存中...",
     "selectIcon": "图标",
@@ -993,7 +995,7 @@
     "creating": "创建中...",
     "edit": "编辑笔记本",
     "editDescription": "更改笔记本的名称、图标和颜色。",
-    "delete": "删除笔记本",
+    "delete": "Delete",
     "deleteWarning": "确定要删除此笔记本吗？笔记将被移动到普通笔记。",
     "deleteConfirm": "删除",
     "summary": "笔记本摘要",
@@ -1012,7 +1014,10 @@
     "pinnedFrozenTooltip": "固定笔记本 — 订单冻结",
     "organizeNotebookWithAITooltip": "用人工智能整理这个笔记本",
     "assistantRequiredForSummarize": "设置中开启AI助手进行总结",
-    "createSubnotebook": "添加子笔记本"
+    "createSubnotebook": "添加子笔记本",
+    "createSubNotebook": "Add sub-notebook",
+    "rename": "Rename",
+    "moveToTrash": "Move to trash"
   },
   "notebookSuggestion": {
     "title": "移动到 {name}？",
@@ -1430,20 +1435,22 @@
   },
   "appearance": {
     "title": "外观",
-    "description": "自定义应用的外观",
+    "description": "Customize the interface",
     "notesViewDescription": "选择笔记在主页和笔记本中的显示方式。",
     "notesViewLabel": "笔记布局",
     "notesViewTabs": "标签页（OneNote 风格）",
     "notesViewMasonry": "卡片（网格）",
     "notesViewList": "列表（杂志）",
-    "selectTheme": "Select theme",
-    "fontFamilyLabel": "字体系列",
-    "fontFamilyDescription": "选择应用程序中使用的字体",
+    "selectTheme": "Choose your preferred theme",
+    "fontFamilyLabel": "Font",
+    "fontFamilyDescription": "Choose the application's font",
     "selectFontFamily": "Inter 针对可读性进行了优化，系统使用您操作系统的原生字体",
-    "fontSystem": "系统默认字体",
+    "fontSystem": "System",
     "fontInterDefault": "Inter (default)",
     "fontPlayfairDisplay": "Playfair Display",
-    "fontJetBrainsMono": "JetBrains Mono"
+    "fontJetBrainsMono": "JetBrains Mono",
+    "accentColorTitle": "Accent Color",
+    "accentColorDescription": "Set the main color of your workspace"
   },
   "generalSettings": {
     "title": "General",
@@ -1477,18 +1484,26 @@
   },
   "trash": {
     "title": "回收站",
-    "empty": "回收站为空",
-    "emptyDescription": "已删除的笔记将显示在这里",
-    "restore": "恢复",
+    "empty": "Trash is empty",
+    "emptyDescription": "Deleted items will appear here. They are kept for 30 days before permanent deletion.",
+    "restore": "Restore",
     "deletePermanently": "永久删除",
     "noteTrashed": "笔记已移至回收站",
     "noteRestored": "笔记已恢复",
     "notePermanentlyDeleted": "笔记已永久删除",
     "emptyTrash": "清空回收站",
-    "emptyTrashConfirm": "确定永久删除回收站中的所有笔记？",
+    "emptyTrashConfirm": "Empty trash? This is irreversible.",
     "emptyTrashSuccess": "回收站已清空",
-    "permanentDelete": "永久删除",
-    "permanentDeleteConfirm": "此笔记将被永久删除，此操作无法撤销。"
+    "permanentDelete": "Delete permanently",
+    "permanentDeleteConfirm": "此笔记将被永久删除，此操作无法撤销。",
+    "restoreSuccess": "Restored successfully",
+    "restoreError": "Failed to restore",
+    "permanentDeleteSuccess": "Permanently deleted",
+    "deleteError": "Failed to delete",
+    "daysRemaining": "DAYS LEFT",
+    "notebookContentPreserved": "Notebook content preserved",
+    "notebookRestoreHint": "Restoring a notebook also restores all its notes.",
+    "filterAll": "All"
   },
   "footer": {
     "privacy": "隐私",
@@ -1583,7 +1598,23 @@
       "chinese": "中国人",
       "japanese": "日本人"
     },
-    "customPlaceholder": "例如阿拉伯语、俄语……"
+    "customPlaceholder": "例如阿拉伯语、俄语……",
+    "autoDetect": "Auto-detect",
+    "en": "English",
+    "fr": "Français",
+    "es": "Español",
+    "de": "Deutsch",
+    "fa": "فارسی",
+    "it": "Italiano",
+    "pt": "Português",
+    "ru": "Русский",
+    "zh": "中文",
+    "ja": "日本語",
+    "ko": "한국어",
+    "ar": "العربية",
+    "hi": "हिन्दी",
+    "nl": "Nederlands",
+    "pl": "Polski"
   },
   "common": {
     "unknown": "未知",
@@ -1591,16 +1622,16 @@
     "loading": "加载中...",
     "error": "错误",
     "success": "成功",
-    "confirm": "确认",
-    "cancel": "取消",
+    "confirm": "Confirm",
+    "cancel": "Cancel",
     "close": "关闭",
     "save": "保存",
     "delete": "删除",
     "edit": "编辑",
     "add": "添加",
     "remove": "移除",
-    "search": "搜索",
-    "noResults": "无结果",
+    "search": "Search...",
+    "noResults": "No notes found",
     "required": "必填",
     "optional": "可选"
   },
@@ -1982,7 +2013,9 @@
     "searching": "搜索中...",
     "noNotesFoundForContext": "未找到与此问题相关的笔记。请用你的常识回答。",
     "webSearch": "网络搜索",
-    "timeoutWarning": "Response is taking longer than expected..."
+    "timeoutWarning": "Response is taking longer than expected...",
+    "quotaExceededBasic": "AI Chat is available from the PRO plan onwards.",
+    "quotaExceededTier": "Monthly quota reached for {tier} plan. It will reset next month."
   },
   "labHeader": {
     "title": "实验室",
@@ -2550,5 +2583,13 @@
         "link2Href": "#"
       }
     }
+  },
+  "noteHistory": {
+    "title": "Title",
+    "content": "Content",
+    "untitled": "Untitled",
+    "emptyState": "No versions available",
+    "selectVersion": "Select a version to preview its content",
+    "currentVersion": "current"
   }
-}
+}
\ No newline at end of file