优化自定义交叉反馈

client/src/lib/luxsinApi.ts

@@ -105,6 +105,10 @@ export interface DeviceState {
   scene_value: number;
   crossfeed_enable: number;
   crossfeed_value: number;
+  /** Custom crossfeed cut-off frequency in Hz (500–1000, step 1). */
+  crossfeed_custom_fc: number;
+  /** Custom crossfeed attenuation, stored as dB×10 (1.0 dB=10 … 15.0 dB=150). */
+  crossfeed_custom_gain: number;
   subwoofer_enable: number;
   subwoofer_value: number;
   subwoofer_rate: number;
@@ -573,6 +577,8 @@ export const MOCK_DEVICE_STATE: DeviceState = {
   scene_value: 0,
   crossfeed_enable: 0,
   crossfeed_value: 0,
+  crossfeed_custom_fc: 700,
+  crossfeed_custom_gain: 45,
   subwoofer_enable: 0,
   subwoofer_value: 80,
   subwoofer_rate: 0,