新增了耳机音量保护和模拟输入的各项设置

client/src/contexts/DeviceContext.tsx

@@ -1,6 +1,7 @@
 import React, { createContext, useCallback, useContext, useEffect, useRef, useState } from "react";
 import {
   DeviceState,
+  getHomeVolumeMax,
   LuxsinAPI,
   MOCK_DEVICE_STATE,
   MOCK_PEQ_STATE,
@@ -262,12 +263,16 @@ export function DeviceProvider({ children }: { children: React.ReactNode }) {
   }, [api, isDemoMode, applyPeqFiltersToState]);
 
   // Optimistic setters
+  const maxVolume = getHomeVolumeMax(deviceState);
   const setVolume = useCallback((v: number) => {
-    setDeviceState(prev => prev ? { ...prev, volume: v } : prev);
+    if (!Number.isFinite(v)) return;
+    // 指令和乐观状态使用同一上限，防止任何首页入口发送超限音量。
+    const volume = Math.max(0, Math.min(maxVolume, Math.round(v)));
+    setDeviceState(prev => prev ? { ...prev, volume } : prev);
     if (!isDemoMode && api) {
-      api.setVolume(v).catch(console.error);
+      api.setVolume(volume).catch(console.error);
     }
-  }, [api, isDemoMode]);
+  }, [api, isDemoMode, maxVolume]);
 
   const setInput = useCallback((v: number) => {
     setDeviceState(prev => prev ? { ...prev, input: v } : prev);