diff --git a/lib/l10n/app_de.arb b/lib/l10n/app_de.arb
index db75c7a..304ab93 100644
--- a/lib/l10n/app_de.arb
+++ b/lib/l10n/app_de.arb
@@ -761,5 +761,51 @@
   "voiceCallErrorHelp": "Bitte prüfe:\n• Mikrofonberechtigungen sind erteilt\n• Spracherkennung ist auf deinem Gerät verfügbar\n• Du bist mit dem Server verbunden",
   "@voiceCallErrorHelp": {
     "description": "Guidance shown when the voice call encounters an error."
-  }
+  },
+  "mermaidPreviewUnavailable": "Mermaid-Vorschau ist auf dieser Plattform nicht verfügbar.",
+  "chartPreviewUnavailable": "Diagramm-Vorschau ist auf dieser Plattform nicht verfügbar.",
+  "notes": "Notizen",
+  "searchNotes": "Notizen suchen...",
+  "createNote": "Notiz erstellen",
+  "noNotesYet": "Noch keine Notizen",
+  "noNotesFound": "Keine Notizen gefunden",
+  "createFirstNoteHint": "Tippe auf +, um deine erste Notiz zu erstellen.",
+  "tryDifferentSearch": "Versuche einen anderen Suchbegriff.",
+  "loadingNotes": "Notizen werden geladen...",
+  "loadingNote": "Notiz wird geladen...",
+  "failedToLoadNotes": "Notizen konnten nicht geladen werden",
+  "deleteNoteTitle": "Notiz löschen",
+  "deleteNoteMessage": "\"{title}\" löschen? Dies kann nicht rückgängig gemacht werden.",
+  "noteTitle": "Notiz-Titel",
+  "writeNote": "Schreibe etwas...",
+  "noteSaved": "Notiz gespeichert",
+  "saving": "Speichern...",
+  "saved": "Gespeichert",
+  "unsavedChanges": "Ungespeicherte Änderungen",
+  "noteCopiedToClipboard": "Notiz in Zwischenablage kopiert",
+  "generateTitle": "Titel generieren",
+  "generatingTitle": "Titel wird generiert...",
+  "noContentToGenerateTitle": "Füge zuerst Inhalt hinzu, um einen Titel zu generieren",
+  "failedToGenerateTitle": "Titel konnte nicht generiert werden",
+  "noContentToEnhance": "Füge zuerst Inhalt hinzu, um ihn zu verbessern",
+  "noteEnhanced": "Notiz mit KI verbessert",
+  "failedToEnhanceNote": "Notiz konnte nicht verbessert werden",
+  "noModelSelected": "Bitte wähle zuerst ein Modell aus",
+  "enhanceWithAI": "Mit KI verbessern",
+  "enhanceNote": "Notiz verbessern",
+  "startDictation": "Diktat starten",
+  "stopRecording": "Aufnahme stoppen",
+  "voiceInputUnavailable": "Spracheingabe nicht verfügbar",
+  "failedToStartDictation": "Diktat konnte nicht gestartet werden",
+  "noteNotFound": "Notiz nicht gefunden",
+  "untitled": "Unbenannt",
+  "today": "Heute",
+  "yesterday": "Gestern",
+  "previous7Days": "Letzte 7 Tage",
+  "previous30Days": "Letzte 30 Tage",
+  "older": "Älter",
+  "tapToExpand": "Tippen zum Erweitern",
+  "byAuthor": "Von {name}",
+  "wordCount": "{count} Wörter",
+  "charCount": "{count} Zeichen"
 }
diff --git a/lib/l10n/app_en.arb b/lib/l10n/app_en.arb
index 50571ca..de624cd 100644
--- a/lib/l10n/app_en.arb
+++ b/lib/l10n/app_en.arb
@@ -1786,5 +1786,13 @@
         "example": "500"
       }
     }
+  },
+  "mermaidPreviewUnavailable": "Mermaid preview is not available on this platform.",
+  "@mermaidPreviewUnavailable": {
+    "description": "Shown when Mermaid diagrams cannot be rendered on the current platform."
+  },
+  "chartPreviewUnavailable": "Chart preview is not available on this platform.",
+  "@chartPreviewUnavailable": {
+    "description": "Shown when Chart.js charts cannot be rendered on the current platform."
   }
 }
diff --git a/lib/l10n/app_es.arb b/lib/l10n/app_es.arb
index 7250f18..4529b4d 100644
--- a/lib/l10n/app_es.arb
+++ b/lib/l10n/app_es.arb
@@ -761,5 +761,51 @@
   "voiceCallErrorHelp": "Comprueba lo siguiente:\n• Los permisos del micrófono están concedidos\n• El reconocimiento de voz está disponible en tu dispositivo\n• Estás conectado al servidor",
   "@voiceCallErrorHelp": {
     "description": "Guidance shown when the voice call encounters an error."
-  }
+  },
+  "mermaidPreviewUnavailable": "La vista previa de Mermaid no está disponible en esta plataforma.",
+  "chartPreviewUnavailable": "La vista previa de gráficos no está disponible en esta plataforma.",
+  "notes": "Notas",
+  "searchNotes": "Buscar notas...",
+  "createNote": "Crear nota",
+  "noNotesYet": "Aún no hay notas",
+  "noNotesFound": "No se encontraron notas",
+  "createFirstNoteHint": "Toca + para crear tu primera nota.",
+  "tryDifferentSearch": "Prueba con otro término de búsqueda.",
+  "loadingNotes": "Cargando notas...",
+  "loadingNote": "Cargando nota...",
+  "failedToLoadNotes": "Error al cargar las notas",
+  "deleteNoteTitle": "Eliminar nota",
+  "deleteNoteMessage": "¿Eliminar \"{title}\"? Esta acción no se puede deshacer.",
+  "noteTitle": "Título de la nota",
+  "writeNote": "Escribe algo...",
+  "noteSaved": "Nota guardada",
+  "saving": "Guardando...",
+  "saved": "Guardado",
+  "unsavedChanges": "Cambios sin guardar",
+  "noteCopiedToClipboard": "Nota copiada al portapapeles",
+  "generateTitle": "Generar título",
+  "generatingTitle": "Generando título...",
+  "noContentToGenerateTitle": "Añade contenido primero para generar un título",
+  "failedToGenerateTitle": "Error al generar el título",
+  "noContentToEnhance": "Añade contenido primero para mejorar",
+  "noteEnhanced": "Nota mejorada con IA",
+  "failedToEnhanceNote": "Error al mejorar la nota",
+  "noModelSelected": "Por favor, selecciona un modelo primero",
+  "enhanceWithAI": "Mejorar con IA",
+  "enhanceNote": "Mejorar nota",
+  "startDictation": "Iniciar dictado",
+  "stopRecording": "Detener grabación",
+  "voiceInputUnavailable": "Entrada de voz no disponible",
+  "failedToStartDictation": "Error al iniciar el dictado",
+  "noteNotFound": "Nota no encontrada",
+  "untitled": "Sin título",
+  "today": "Hoy",
+  "yesterday": "Ayer",
+  "previous7Days": "Últimos 7 días",
+  "previous30Days": "Últimos 30 días",
+  "older": "Más antiguo",
+  "tapToExpand": "Toca para expandir",
+  "byAuthor": "Por {name}",
+  "wordCount": "{count} palabras",
+  "charCount": "{count} caracteres"
 }
diff --git a/lib/l10n/app_fr.arb b/lib/l10n/app_fr.arb
index 58417ee..b5c419c 100644
--- a/lib/l10n/app_fr.arb
+++ b/lib/l10n/app_fr.arb
@@ -761,5 +761,51 @@
   "voiceCallErrorHelp": "Veuillez vérifier :\n• Les autorisations du microphone sont accordées\n• La reconnaissance vocale est disponible sur votre appareil\n• Vous êtes connecté au serveur",
   "@voiceCallErrorHelp": {
     "description": "Guidance shown when the voice call encounters an error."
-  }
+  },
+  "mermaidPreviewUnavailable": "L'aperçu Mermaid n'est pas disponible sur cette plateforme.",
+  "chartPreviewUnavailable": "L'aperçu des graphiques n'est pas disponible sur cette plateforme.",
+  "notes": "Notes",
+  "searchNotes": "Rechercher des notes...",
+  "createNote": "Créer une note",
+  "noNotesYet": "Pas encore de notes",
+  "noNotesFound": "Aucune note trouvée",
+  "createFirstNoteHint": "Appuyez sur + pour créer votre première note.",
+  "tryDifferentSearch": "Essayez un autre terme de recherche.",
+  "loadingNotes": "Chargement des notes...",
+  "loadingNote": "Chargement de la note...",
+  "failedToLoadNotes": "Échec du chargement des notes",
+  "deleteNoteTitle": "Supprimer la note",
+  "deleteNoteMessage": "Supprimer \"{title}\" ? Cette action est irréversible.",
+  "noteTitle": "Titre de la note",
+  "writeNote": "Écrivez quelque chose...",
+  "noteSaved": "Note enregistrée",
+  "saving": "Enregistrement...",
+  "saved": "Enregistré",
+  "unsavedChanges": "Modifications non enregistrées",
+  "noteCopiedToClipboard": "Note copiée dans le presse-papiers",
+  "generateTitle": "Générer un titre",
+  "generatingTitle": "Génération du titre...",
+  "noContentToGenerateTitle": "Ajoutez d'abord du contenu pour générer un titre",
+  "failedToGenerateTitle": "Échec de la génération du titre",
+  "noContentToEnhance": "Ajoutez d'abord du contenu à améliorer",
+  "noteEnhanced": "Note améliorée par l'IA",
+  "failedToEnhanceNote": "Échec de l'amélioration de la note",
+  "noModelSelected": "Veuillez d'abord sélectionner un modèle",
+  "enhanceWithAI": "Améliorer avec l'IA",
+  "enhanceNote": "Améliorer la note",
+  "startDictation": "Démarrer la dictée",
+  "stopRecording": "Arrêter l'enregistrement",
+  "voiceInputUnavailable": "Entrée vocale non disponible",
+  "failedToStartDictation": "Échec du démarrage de la dictée",
+  "noteNotFound": "Note introuvable",
+  "untitled": "Sans titre",
+  "today": "Aujourd'hui",
+  "yesterday": "Hier",
+  "previous7Days": "7 derniers jours",
+  "previous30Days": "30 derniers jours",
+  "older": "Plus ancien",
+  "tapToExpand": "Appuyez pour développer",
+  "byAuthor": "Par {name}",
+  "wordCount": "{count} mots",
+  "charCount": "{count} caractères"
 }
diff --git a/lib/l10n/app_it.arb b/lib/l10n/app_it.arb
index 74e0a96..d5f4dd4 100644
--- a/lib/l10n/app_it.arb
+++ b/lib/l10n/app_it.arb
@@ -761,5 +761,51 @@
   "voiceCallErrorHelp": "Controlla:\n• Sono state concesse le autorizzazioni del microfono\n• Il riconoscimento vocale è disponibile sul dispositivo\n• Sei connesso al server",
   "@voiceCallErrorHelp": {
     "description": "Guidance shown when the voice call encounters an error."
-  }
+  },
+  "mermaidPreviewUnavailable": "L'anteprima Mermaid non è disponibile su questa piattaforma.",
+  "chartPreviewUnavailable": "L'anteprima dei grafici non è disponibile su questa piattaforma.",
+  "notes": "Note",
+  "searchNotes": "Cerca note...",
+  "createNote": "Crea nota",
+  "noNotesYet": "Nessuna nota ancora",
+  "noNotesFound": "Nessuna nota trovata",
+  "createFirstNoteHint": "Tocca + per creare la tua prima nota.",
+  "tryDifferentSearch": "Prova con un altro termine di ricerca.",
+  "loadingNotes": "Caricamento note...",
+  "loadingNote": "Caricamento nota...",
+  "failedToLoadNotes": "Impossibile caricare le note",
+  "deleteNoteTitle": "Elimina nota",
+  "deleteNoteMessage": "Eliminare \"{title}\"? Questa azione non può essere annullata.",
+  "noteTitle": "Titolo della nota",
+  "writeNote": "Scrivi qualcosa...",
+  "noteSaved": "Nota salvata",
+  "saving": "Salvataggio...",
+  "saved": "Salvato",
+  "unsavedChanges": "Modifiche non salvate",
+  "noteCopiedToClipboard": "Nota copiata negli appunti",
+  "generateTitle": "Genera titolo",
+  "generatingTitle": "Generazione titolo...",
+  "noContentToGenerateTitle": "Aggiungi prima del contenuto per generare un titolo",
+  "failedToGenerateTitle": "Impossibile generare il titolo",
+  "noContentToEnhance": "Aggiungi prima del contenuto da migliorare",
+  "noteEnhanced": "Nota migliorata con IA",
+  "failedToEnhanceNote": "Impossibile migliorare la nota",
+  "noModelSelected": "Seleziona prima un modello",
+  "enhanceWithAI": "Migliora con IA",
+  "enhanceNote": "Migliora nota",
+  "startDictation": "Avvia dettatura",
+  "stopRecording": "Interrompi registrazione",
+  "voiceInputUnavailable": "Input vocale non disponibile",
+  "failedToStartDictation": "Impossibile avviare la dettatura",
+  "noteNotFound": "Nota non trovata",
+  "untitled": "Senza titolo",
+  "today": "Oggi",
+  "yesterday": "Ieri",
+  "previous7Days": "Ultimi 7 giorni",
+  "previous30Days": "Ultimi 30 giorni",
+  "older": "Più vecchio",
+  "tapToExpand": "Tocca per espandere",
+  "byAuthor": "Di {name}",
+  "wordCount": "{count} parole",
+  "charCount": "{count} caratteri"
 }
diff --git a/lib/l10n/app_ko.arb b/lib/l10n/app_ko.arb
index 23950ef..03c6340 100644
--- a/lib/l10n/app_ko.arb
+++ b/lib/l10n/app_ko.arb
@@ -539,5 +539,51 @@
   "transportModePolling": "폴링 폴백",
   "transportModeWs": "WebSocket 전용",
   "transportModePollingInfo": "WebSocket이 차단되면 HTTP 폴링으로 폴백합니다. 가능하면 WebSocket으로 업그레이드합니다.",
-  "transportModeWsInfo": "오버헤드가 낮지만 엄격한 프록시/방화벽 뒤에서 실패할 수 있습니다."
+  "transportModeWsInfo": "오버헤드가 낮지만 엄격한 프록시/방화벽 뒤에서 실패할 수 있습니다.",
+  "mermaidPreviewUnavailable": "이 플랫폼에서는 Mermaid 미리보기를 사용할 수 없습니다.",
+  "chartPreviewUnavailable": "이 플랫폼에서는 차트 미리보기를 사용할 수 없습니다.",
+  "notes": "노트",
+  "searchNotes": "노트 검색...",
+  "createNote": "노트 만들기",
+  "noNotesYet": "아직 노트가 없습니다",
+  "noNotesFound": "노트를 찾을 수 없습니다",
+  "createFirstNoteHint": "+를 탭하여 첫 번째 노트를 만드세요.",
+  "tryDifferentSearch": "다른 검색어를 시도해 보세요.",
+  "loadingNotes": "노트 불러오는 중...",
+  "loadingNote": "노트 불러오는 중...",
+  "failedToLoadNotes": "노트를 불러올 수 없습니다",
+  "deleteNoteTitle": "노트 삭제",
+  "deleteNoteMessage": "\"{title}\"을(를) 삭제하시겠습니까? 이 작업은 취소할 수 없습니다.",
+  "noteTitle": "노트 제목",
+  "writeNote": "무언가 작성하세요...",
+  "noteSaved": "노트 저장됨",
+  "saving": "저장 중...",
+  "saved": "저장됨",
+  "unsavedChanges": "저장되지 않은 변경사항",
+  "noteCopiedToClipboard": "노트가 클립보드에 복사됨",
+  "generateTitle": "제목 생성",
+  "generatingTitle": "제목 생성 중...",
+  "noContentToGenerateTitle": "제목을 생성하려면 먼저 내용을 추가하세요",
+  "failedToGenerateTitle": "제목 생성 실패",
+  "noContentToEnhance": "개선하려면 먼저 내용을 추가하세요",
+  "noteEnhanced": "AI로 노트 개선됨",
+  "failedToEnhanceNote": "노트 개선 실패",
+  "noModelSelected": "먼저 모델을 선택하세요",
+  "enhanceWithAI": "AI로 개선",
+  "enhanceNote": "노트 개선",
+  "startDictation": "받아쓰기 시작",
+  "stopRecording": "녹음 중지",
+  "voiceInputUnavailable": "음성 입력을 사용할 수 없습니다",
+  "failedToStartDictation": "받아쓰기 시작 실패",
+  "noteNotFound": "노트를 찾을 수 없습니다",
+  "untitled": "제목 없음",
+  "today": "오늘",
+  "yesterday": "어제",
+  "previous7Days": "지난 7일",
+  "previous30Days": "지난 30일",
+  "older": "이전",
+  "tapToExpand": "탭하여 확장",
+  "byAuthor": "{name} 작성",
+  "wordCount": "{count}단어",
+  "charCount": "{count}자"
 }
diff --git a/lib/l10n/app_nl.arb b/lib/l10n/app_nl.arb
index 43e6400..f2b1704 100644
--- a/lib/l10n/app_nl.arb
+++ b/lib/l10n/app_nl.arb
@@ -761,5 +761,51 @@
   "voiceCallErrorHelp": "Controleer het volgende:\n• Microfoonmachtigingen zijn toegestaan\n• Spraakherkenning is beschikbaar op je apparaat\n• Je bent verbonden met de server",
   "@voiceCallErrorHelp": {
     "description": "Guidance shown when the voice call encounters an error."
-  }
+  },
+  "mermaidPreviewUnavailable": "Mermaid-voorbeeld is niet beschikbaar op dit platform.",
+  "chartPreviewUnavailable": "Grafiekvoorbeeld is niet beschikbaar op dit platform.",
+  "notes": "Notities",
+  "searchNotes": "Notities zoeken...",
+  "createNote": "Notitie maken",
+  "noNotesYet": "Nog geen notities",
+  "noNotesFound": "Geen notities gevonden",
+  "createFirstNoteHint": "Tik op + om je eerste notitie te maken.",
+  "tryDifferentSearch": "Probeer een andere zoekterm.",
+  "loadingNotes": "Notities laden...",
+  "loadingNote": "Notitie laden...",
+  "failedToLoadNotes": "Notities laden mislukt",
+  "deleteNoteTitle": "Notitie verwijderen",
+  "deleteNoteMessage": "\"{title}\" verwijderen? Dit kan niet ongedaan worden gemaakt.",
+  "noteTitle": "Notitietitel",
+  "writeNote": "Schrijf iets...",
+  "noteSaved": "Notitie opgeslagen",
+  "saving": "Opslaan...",
+  "saved": "Opgeslagen",
+  "unsavedChanges": "Niet-opgeslagen wijzigingen",
+  "noteCopiedToClipboard": "Notitie gekopieerd naar klembord",
+  "generateTitle": "Titel genereren",
+  "generatingTitle": "Titel genereren...",
+  "noContentToGenerateTitle": "Voeg eerst inhoud toe om een titel te genereren",
+  "failedToGenerateTitle": "Titel genereren mislukt",
+  "noContentToEnhance": "Voeg eerst inhoud toe om te verbeteren",
+  "noteEnhanced": "Notitie verbeterd met AI",
+  "failedToEnhanceNote": "Notitie verbeteren mislukt",
+  "noModelSelected": "Selecteer eerst een model",
+  "enhanceWithAI": "Verbeteren met AI",
+  "enhanceNote": "Notitie verbeteren",
+  "startDictation": "Dicteren starten",
+  "stopRecording": "Opname stoppen",
+  "voiceInputUnavailable": "Spraakinvoer niet beschikbaar",
+  "failedToStartDictation": "Dicteren starten mislukt",
+  "noteNotFound": "Notitie niet gevonden",
+  "untitled": "Naamloos",
+  "today": "Vandaag",
+  "yesterday": "Gisteren",
+  "previous7Days": "Afgelopen 7 dagen",
+  "previous30Days": "Afgelopen 30 dagen",
+  "older": "Ouder",
+  "tapToExpand": "Tik om uit te vouwen",
+  "byAuthor": "Door {name}",
+  "wordCount": "{count} woorden",
+  "charCount": "{count} tekens"
 }
diff --git a/lib/l10n/app_ru.arb b/lib/l10n/app_ru.arb
index a6d53b6..90ee837 100644
--- a/lib/l10n/app_ru.arb
+++ b/lib/l10n/app_ru.arb
@@ -761,5 +761,51 @@
   "voiceCallErrorHelp": "Проверьте:\n• Разрешение на микрофон предоставлено\n• Распознавание речи доступно на устройстве\n• Есть подключение к серверу",
   "@voiceCallErrorHelp": {
     "description": "Guidance shown when the voice call encounters an error."
-  }
+  },
+  "mermaidPreviewUnavailable": "Предпросмотр Mermaid недоступен на этой платформе.",
+  "chartPreviewUnavailable": "Предпросмотр диаграмм недоступен на этой платформе.",
+  "notes": "Заметки",
+  "searchNotes": "Поиск заметок...",
+  "createNote": "Создать заметку",
+  "noNotesYet": "Заметок пока нет",
+  "noNotesFound": "Заметки не найдены",
+  "createFirstNoteHint": "Нажмите +, чтобы создать первую заметку.",
+  "tryDifferentSearch": "Попробуйте другой поисковый запрос.",
+  "loadingNotes": "Загрузка заметок...",
+  "loadingNote": "Загрузка заметки...",
+  "failedToLoadNotes": "Не удалось загрузить заметки",
+  "deleteNoteTitle": "Удалить заметку",
+  "deleteNoteMessage": "Удалить \"{title}\"? Это действие нельзя отменить.",
+  "noteTitle": "Название заметки",
+  "writeNote": "Напишите что-нибудь...",
+  "noteSaved": "Заметка сохранена",
+  "saving": "Сохранение...",
+  "saved": "Сохранено",
+  "unsavedChanges": "Несохранённые изменения",
+  "noteCopiedToClipboard": "Заметка скопирована в буфер обмена",
+  "generateTitle": "Сгенерировать название",
+  "generatingTitle": "Генерация названия...",
+  "noContentToGenerateTitle": "Сначала добавьте содержимое для генерации названия",
+  "failedToGenerateTitle": "Не удалось сгенерировать название",
+  "noContentToEnhance": "Сначала добавьте содержимое для улучшения",
+  "noteEnhanced": "Заметка улучшена с помощью ИИ",
+  "failedToEnhanceNote": "Не удалось улучшить заметку",
+  "noModelSelected": "Сначала выберите модель",
+  "enhanceWithAI": "Улучшить с помощью ИИ",
+  "enhanceNote": "Улучшить заметку",
+  "startDictation": "Начать диктовку",
+  "stopRecording": "Остановить запись",
+  "voiceInputUnavailable": "Голосовой ввод недоступен",
+  "failedToStartDictation": "Не удалось начать диктовку",
+  "noteNotFound": "Заметка не найдена",
+  "untitled": "Без названия",
+  "today": "Сегодня",
+  "yesterday": "Вчера",
+  "previous7Days": "Последние 7 дней",
+  "previous30Days": "Последние 30 дней",
+  "older": "Старше",
+  "tapToExpand": "Нажмите для раскрытия",
+  "byAuthor": "Автор: {name}",
+  "wordCount": "{count} слов",
+  "charCount": "{count} символов"
 }
diff --git a/lib/l10n/app_zh.arb b/lib/l10n/app_zh.arb
index a52145a..91da20f 100644
--- a/lib/l10n/app_zh.arb
+++ b/lib/l10n/app_zh.arb
@@ -761,5 +761,51 @@
   "voiceCallErrorHelp": "请检查：\n• 已授予麦克风权限\n• 设备支持语音识别\n• 已连接到服务器",
   "@voiceCallErrorHelp": {
     "description": "Guidance shown when the voice call encounters an error."
-  }
+  },
+  "mermaidPreviewUnavailable": "此平台不支持 Mermaid 预览。",
+  "chartPreviewUnavailable": "此平台不支持图表预览。",
+  "notes": "笔记",
+  "searchNotes": "搜索笔记...",
+  "createNote": "创建笔记",
+  "noNotesYet": "暂无笔记",
+  "noNotesFound": "未找到笔记",
+  "createFirstNoteHint": "点击 + 创建您的第一条笔记。",
+  "tryDifferentSearch": "尝试其他搜索词。",
+  "loadingNotes": "正在加载笔记...",
+  "loadingNote": "正在加载笔记...",
+  "failedToLoadNotes": "加载笔记失败",
+  "deleteNoteTitle": "删除笔记",
+  "deleteNoteMessage": "删除「{title}」？此操作无法撤消。",
+  "noteTitle": "笔记标题",
+  "writeNote": "写点什么...",
+  "noteSaved": "笔记已保存",
+  "saving": "保存中...",
+  "saved": "已保存",
+  "unsavedChanges": "未保存的更改",
+  "noteCopiedToClipboard": "笔记已复制到剪贴板",
+  "generateTitle": "生成标题",
+  "generatingTitle": "正在生成标题...",
+  "noContentToGenerateTitle": "请先添加内容以生成标题",
+  "failedToGenerateTitle": "生成标题失败",
+  "noContentToEnhance": "请先添加内容以进行增强",
+  "noteEnhanced": "笔记已通过 AI 增强",
+  "failedToEnhanceNote": "增强笔记失败",
+  "noModelSelected": "请先选择一个模型",
+  "enhanceWithAI": "使用 AI 增强",
+  "enhanceNote": "增强笔记",
+  "startDictation": "开始听写",
+  "stopRecording": "停止录音",
+  "voiceInputUnavailable": "语音输入不可用",
+  "failedToStartDictation": "启动听写失败",
+  "noteNotFound": "未找到笔记",
+  "untitled": "无标题",
+  "today": "今天",
+  "yesterday": "昨天",
+  "previous7Days": "过去 7 天",
+  "previous30Days": "过去 30 天",
+  "older": "更早",
+  "tapToExpand": "点击展开",
+  "byAuthor": "作者：{name}",
+  "wordCount": "{count} 字",
+  "charCount": "{count} 字符"
 }
diff --git a/lib/l10n/app_zh_Hant.arb b/lib/l10n/app_zh_Hant.arb
index 7cb513f..31da857 100644
--- a/lib/l10n/app_zh_Hant.arb
+++ b/lib/l10n/app_zh_Hant.arb
@@ -761,5 +761,51 @@
   "voiceCallErrorHelp": "請檢查：\n• 已授予麥克風權限\n• 設備支持語音識別\n• 已連接到服務器",
   "@voiceCallErrorHelp": {
     "description": "Guidance shown when the voice call encounters an error."
-  }
+  },
+  "mermaidPreviewUnavailable": "此平台不支援 Mermaid 預覽。",
+  "chartPreviewUnavailable": "此平台不支援圖表預覽。",
+  "notes": "筆記",
+  "searchNotes": "搜尋筆記...",
+  "createNote": "建立筆記",
+  "noNotesYet": "尚無筆記",
+  "noNotesFound": "找不到筆記",
+  "createFirstNoteHint": "點擊 + 建立您的第一則筆記。",
+  "tryDifferentSearch": "嘗試其他搜尋詞。",
+  "loadingNotes": "正在載入筆記...",
+  "loadingNote": "正在載入筆記...",
+  "failedToLoadNotes": "載入筆記失敗",
+  "deleteNoteTitle": "刪除筆記",
+  "deleteNoteMessage": "刪除「{title}」？此操作無法復原。",
+  "noteTitle": "筆記標題",
+  "writeNote": "寫點什麼...",
+  "noteSaved": "筆記已儲存",
+  "saving": "儲存中...",
+  "saved": "已儲存",
+  "unsavedChanges": "未儲存的變更",
+  "noteCopiedToClipboard": "筆記已複製到剪貼簿",
+  "generateTitle": "產生標題",
+  "generatingTitle": "正在產生標題...",
+  "noContentToGenerateTitle": "請先新增內容以產生標題",
+  "failedToGenerateTitle": "產生標題失敗",
+  "noContentToEnhance": "請先新增內容以進行增強",
+  "noteEnhanced": "筆記已透過 AI 增強",
+  "failedToEnhanceNote": "增強筆記失敗",
+  "noModelSelected": "請先選擇一個模型",
+  "enhanceWithAI": "使用 AI 增強",
+  "enhanceNote": "增強筆記",
+  "startDictation": "開始聽寫",
+  "stopRecording": "停止錄音",
+  "voiceInputUnavailable": "語音輸入不可用",
+  "failedToStartDictation": "啟動聽寫失敗",
+  "noteNotFound": "找不到筆記",
+  "untitled": "無標題",
+  "today": "今天",
+  "yesterday": "昨天",
+  "previous7Days": "過去 7 天",
+  "previous30Days": "過去 30 天",
+  "older": "更早",
+  "tapToExpand": "點擊展開",
+  "byAuthor": "作者：{name}",
+  "wordCount": "{count} 字",
+  "charCount": "{count} 字元"
 }
diff --git a/lib/shared/widgets/markdown/markdown_config.dart b/lib/shared/widgets/markdown/markdown_config.dart
index 284db71..dae9069 100644
--- a/lib/shared/widgets/markdown/markdown_config.dart
+++ b/lib/shared/widgets/markdown/markdown_config.dart
@@ -226,6 +226,7 @@ class ConduitMarkdown {
     required ConduitThemeExtension conduitTheme,
     required String code,
   }) {
+    final l10n = AppLocalizations.of(context);
     final textStyle = AppTypography.bodySmallStyle.copyWith(
       color: conduitTheme.codeText.withValues(alpha: 0.7),
     );
@@ -246,7 +247,8 @@ class ConduitMarkdown {
         mainAxisSize: MainAxisSize.min,
         children: [
           Text(
-            'Mermaid preview is not available on this platform.',
+            l10n?.mermaidPreviewUnavailable ??
+                'Mermaid preview is not available on this platform.',
             style: textStyle,
           ),
           const SizedBox(height: Spacing.xs),
@@ -324,6 +326,7 @@ class ConduitMarkdown {
     required BuildContext context,
     required ConduitThemeExtension conduitTheme,
   }) {
+    final l10n = AppLocalizations.of(context);
     final textStyle = AppTypography.bodySmallStyle.copyWith(
       color: conduitTheme.codeText.withValues(alpha: 0.7),
     );
@@ -340,7 +343,8 @@ class ConduitMarkdown {
         ),
       ),
       child: Text(
-        'Chart preview is not available on this platform.',
+        l10n?.chartPreviewUnavailable ??
+            'Chart preview is not available on this platform.',
         style: textStyle,
       ),
     );