fix: 修复缺失模块、TTS 误报错误、语音对话历史缺失等 4 项 bug

- 补充缺失的 useTouch.ts，修复测试套件整体失败
- TTSService cancel 前清空 utterance 回调，避免主动停止触发错误 toast
- ASRStateAdapter 接入 chatSessionStore，语音对话消息现在正确写入聊天历史
- useConnectionHealth 中 as any 替换为 as ConnectionStatus

Author: shijiashuai

src/core/audio/audioService.ts

@@ -40,6 +40,10 @@ export interface ASRStateAdapter {
   sessionId: string;
   /** Current behavior (for thinking reset check). */
   currentBehavior: string;
+  /** Add a message to chat history (for voice-initiated dialogue turns). */
+  addChatMessage?: (role: 'user' | 'assistant', text: string, isStreaming?: boolean) => number | null;
+  /** Update an existing chat message (for voice-initiated dialogue turns). */
+  updateChatMessage?: (id: number, updates: Partial<{ text: string; isStreaming: boolean }>) => void;
 }
 
 type SpeechRecognitionResultLike = ArrayLike<{ transcript: string }>;
@@ -77,6 +81,7 @@ export class TTSService {
   private config: TTSConfig;
   private isInitialized: boolean = false;
   private callbacks: TTSCallbacks;
+  private currentUtterance: SpeechSynthesisUtterance | null = null;
 
   constructor(config: TTSConfig = {}, callbacks: TTSCallbacks = {}) {
     this.synth = typeof window !== 'undefined' && 'speechSynthesis' in window
@@ -142,6 +147,7 @@ export class TTSService {
       }
 
       if (this.synth.speaking) {
+        this.cancelCurrentUtterance();
         this.synth.cancel();
       }
 
@@ -165,16 +171,19 @@ export class TTSService {
       };
 
       utterance.onend = () => {
+        this.currentUtterance = null;
         this.callbacks.onSpeakEnd?.();
         resolve();
       };
 
       utterance.onerror = (event) => {
+        this.currentUtterance = null;
         console.error('语音合成错误:', event);
         this.callbacks.onError?.(`语音合成失败: ${event.error}`);
         reject(new Error(event.error));
       };
 
+      this.currentUtterance = utterance;
       this.synth.speak(utterance);
     });
   }
@@ -197,6 +206,7 @@ export class TTSService {
     }
 
     if (this.synth.speaking) {
+      this.cancelCurrentUtterance();
       this.synth.cancel();
     }
 
@@ -223,18 +233,32 @@ export class TTSService {
     };
 
     utterance.onend = () => {
+      this.currentUtterance = null;
       this.callbacks.onSpeakEnd?.();
     };
 
     utterance.onerror = (event) => {
+      this.currentUtterance = null;
       console.error('语音合成错误:', event);
       this.callbacks.onError?.('语音合成失败');
     };
 
+    this.currentUtterance = utterance;
     this.synth.speak(utterance);
   }
 
+  /** Nullify handlers on the current utterance so cancel() won't fire onerror. */
+  private cancelCurrentUtterance(): void {
+    if (this.currentUtterance) {
+      this.currentUtterance.onstart = null;
+      this.currentUtterance.onend = null;
+      this.currentUtterance.onerror = null;
+      this.currentUtterance = null;
+    }
+  }
+
   stop(): void {
+    this.cancelCurrentUtterance();
     this.synth?.cancel();
     this.callbacks.onSpeakEnd?.();
   }
@@ -538,10 +562,10 @@ export class ASRService {
         isMuted: this.state.isMuted,
         speakWith: (textToSpeak) => this.tts.speak(textToSpeak),
         onAddUserMessage: (t) => {
-          // Deliberately not handled here — callers should wire this via callbacks
+          this.state.addChatMessage?.('user', t);
         },
-        onAddAssistantMessage: () => {
-          // Same as above
+        onAddAssistantMessage: (replyText) => {
+          this.state.addChatMessage?.('assistant', replyText);
         },
         onResetBehavior: () => {
           if (this.state.currentBehavior === 'thinking') {

src/core/audio/index.ts

@@ -53,6 +53,8 @@ function createASRStateAdapter(): ASRStateAdapter {
     get currentBehavior() {
       return useDigitalHumanStore.getState().currentBehavior;
     },
+    addChatMessage: (role, text, isStreaming) => useChatSessionStore.getState().addChatMessage(role, text, isStreaming),
+    updateChatMessage: (id, updates) => useChatSessionStore.getState().updateChatMessage(id, updates),
   };
 }
 

src/hooks/useConnectionHealth.ts

@@ -1,5 +1,6 @@
 import { useEffect, useRef, useCallback } from 'react';
 import { useSystemStore } from '../store/systemStore';
+import type { ConnectionStatus } from '../store/systemStore';
 import { checkServerHealth } from '../core/dialogue/dialogueService';
 import { resolveChatTransportMode } from '../core/dialogue/chatTransport';
 import { toast } from 'sonner';
@@ -22,7 +23,7 @@ export function useConnectionHealth() {
     const nextStatus = isHealthy ? 'connected' : 'disconnected';
     const previousStatus = lastStatusRef.current;
 
-    setConnectionStatus(nextStatus as any);
+    setConnectionStatus(nextStatus as ConnectionStatus);
 
     if (!isHealthy && previousStatus !== 'disconnected') {
       toast.warning('服务器连接不稳定，部分功能可能受限');
@@ -45,7 +46,7 @@ export function useConnectionHealth() {
     const isHealthy = await checkServerHealth();
     const nextStatus = isHealthy ? 'connected' : 'error';
 
-    setConnectionStatus(nextStatus as any);
+    setConnectionStatus(nextStatus as ConnectionStatus);
     lastStatusRef.current = nextStatus;
 
     if (isHealthy) {

src/hooks/useTouch.ts

@@ -0,0 +1,16 @@
+import { useState, useEffect } from 'react';
+
+export function isTouchDevice(): boolean {
+  if (typeof window === 'undefined') return false;
+  return 'ontouchstart' in window || navigator.maxTouchPoints > 0;
+}
+
+export function useTouch(): { isTouchDevice: boolean } {
+  const [touch, setTouch] = useState(isTouchDevice);
+
+  useEffect(() => {
+    setTouch(isTouchDevice());
+  }, []);
+
+  return { isTouchDevice: touch };
+}