feat(l10n): Add translations for notes feature

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"
 }