新增AI的功能与页面，扩展了国际化功能

client/src/locales/data-zh.json

@@ -300,5 +300,60 @@
     "selectedYet": "你还未选择目标曲线",
     "leftChannel": "左声道",
     "rightChannel": "右声道"
+  },
+  "ai": {
+    "title": "Luxsin AI",
+    "welcomeTitle": "你好，我是 Luxsin AI",
+    "welcomeDescription": "可以帮你查询与调整 {device} 的设置，分析耳机频响、优化 EQ，或者解答使用上的疑问。",
+    "suggestionsLabel": "试试这样问",
+    "suggestions": [
+      { "title": "优化我的 EQ", "prompt": "帮我优化当前 EQ，我希望人声更清晰一些" },
+      { "title": "推荐流行乐 EQ", "prompt": "推荐一套适合听流行音乐的 EQ 参数" },
+      { "title": "查看设备状态", "prompt": "帮我查看当前的音量、输入源和输出端口" },
+      { "title": "切换输入源", "prompt": "把输入源切换到 USB-C" }
+    ],
+    "inputPlaceholder": "问问关于设备、EQ、音效……",
+    "thinking": "思考中…",
+    "stopped": "（已停止）",
+    "requestFailed": "请求失败，请稍后重试",
+    "ariaSend": "发送",
+    "ariaStop": "停止",
+    "ariaNewChat": "新建会话",
+    "ariaHistory": "历史会话",
+    "ariaClose": "关闭",
+    "clearCurrent": "清空当前会话",
+    "cleared": "已清空当前会话",
+    "clearFailed": "清空失败：{message}",
+    "deviceRequired": "请先连接设备",
+    "deviceDisconnected": "设备未连接",
+    "loadHistoryFailed": "加载历史失败：{message}",
+    "loadChatFailed": "加载会话失败：{message}",
+    "toolResultFailed": "工具结果回传失败：{message}",
+    "history": {
+      "title": "历史会话",
+      "newChat": "开始新会话",
+      "empty": "暂无历史会话",
+      "current": "当前"
+    },
+    "optimize": {
+      "badge": "优化记录",
+      "applied": "已应用",
+      "summary": "{count} 个滤波器 · 总增益 {preamp} dB",
+      "compare": "对比",
+      "apply": "应用",
+      "rollback": "回滚",
+      "applySuccess": "已应用新的 EQ",
+      "rollbackSuccess": "已回滚到原 EQ",
+      "applyFailed": "操作失败：{message}"
+    },
+    "compareDialog": {
+      "title": "EQ 对比",
+      "legendBefore": "优化前",
+      "legendAfter": "优化后",
+      "close": "关闭",
+      "apply": "应用此优化",
+      "rollback": "回滚到优化前",
+      "paramSummary": "{count} 段 · preamp {preamp} dB"
+    }
   }
 }