fix: support configurable bind host for HTTP API and fix Windows sherpa-onnx PATH

- fix(#547): HTTP API server now supports configurable bind host (default 127.0.0.1)
  Docker/N8N users can set host to 0.0.0.0 in settings to allow container access.
  Adds httpApiHost config key, UI input in settings, and passes host through
  IPC chain (preload -> main -> httpService).

- fix(#546): Add Windows PATH injection for sherpa-onnx native module
  buildTranscribeWorkerEnv() now adds the sherpa-onnx-win-x64 directory to
  PATH on Windows, fixing 'Could not find sherpa-onnx-node' errors caused
  by missing DLL search path in forked worker processes.

electron/services/config.ts

@@ -54,6 +54,7 @@ interface ConfigSchema {
   messagePushEnabled: boolean
   httpApiEnabled: boolean
   httpApiPort: number
+  httpApiHost: string
   httpApiToken: string
   windowCloseBehavior: 'ask' | 'tray' | 'quit'
   quoteLayout: 'quote-top' | 'quote-bottom'
@@ -125,6 +126,7 @@ export class ConfigService {
       httpApiToken: '',
       httpApiEnabled: false,
       httpApiPort: 5031,
+      httpApiHost: '127.0.0.1',
       messagePushEnabled: false,
       windowCloseBehavior: 'ask',
       quoteLayout: 'quote-top',

electron/services/httpService.ts

@@ -101,6 +101,7 @@ class HttpService {
   private server: http.Server | null = null
   private configService: ConfigService
   private port: number = 5031
+  private host: string = '127.0.0.1'
   private running: boolean = false
   private connections: Set<import('net').Socket> = new Set()
   private messagePushClients: Set<http.ServerResponse> = new Set()
@@ -114,12 +115,13 @@ class HttpService {
   /**
    * 启动 HTTP 服务
    */
-  async start(port: number = 5031): Promise<{ success: boolean; port?: number; error?: string }> {
+  async start(port: number = 5031, host: string = '127.0.0.1'): Promise<{ success: boolean; port?: number; error?: string }> {
     if (this.running && this.server) {
       return { success: true, port: this.port }
     }
 
     this.port = port
+    this.host = host
 
     return new Promise((resolve) => {
       this.server = http.createServer((req, res) => this.handleRequest(req, res))
@@ -153,10 +155,10 @@ class HttpService {
         }
       })
 
-      this.server.listen(this.port, '127.0.0.1', () => {
+      this.server.listen(this.port, this.host, () => {
         this.running = true
         this.startMessagePushHeartbeat()
-        console.log(`[HttpService] HTTP API server started on http://127.0.0.1:${this.port}`)
+        console.log(`[HttpService] HTTP API server started on http://${this.host}:${this.port}`)
         resolve({ success: true, port: this.port })
       })
     })
@@ -225,7 +227,7 @@ class HttpService {
   }
 
   getMessagePushStreamUrl(): string {
-    return `http://127.0.0.1:${this.port}/api/v1/push/messages`
+    return `http://${this.host}:${this.port}/api/v1/push/messages`
   }
 
   broadcastMessagePush(payload: Record<string, unknown>): void {
@@ -250,8 +252,9 @@ class HttpService {
     const enabled = this.configService.get('httpApiEnabled')
     if (enabled) {
       const port = Number(this.configService.get('httpApiPort')) || 5031
+      const host = String(this.configService.get('httpApiHost') || '127.0.0.1').trim() || '127.0.0.1'
       try {
-        await this.start(port)
+        await this.start(port, host)
         console.log(`[HttpService] Auto-started on port ${port}`)
       } catch (err) {
         console.error('[HttpService] Auto-start failed:', err)
@@ -314,7 +317,7 @@ class HttpService {
             return
         }
 
-        const url = new URL(req.url || '/', `http://127.0.0.1:${this.port}`)
+        const url = new URL(req.url || '/', `http://${this.host}:${this.port}`)
         const pathname = url.pathname
 
         try {
@@ -961,7 +964,7 @@ class HttpService {
       parsedContent: msg.parsedContent,
       mediaType: media?.kind,
       mediaFileName: media?.fileName,
-      mediaUrl: media ? `http://127.0.0.1:${this.port}/api/v1/media/${media.relativePath}` : undefined,
+      mediaUrl: media ? `http://${this.host}:${this.port}/api/v1/media/${media.relativePath}` : undefined,
       mediaLocalPath: media?.fullPath
     }
   }
@@ -1231,7 +1234,7 @@ class HttpService {
         type: this.mapMessageType(msg.localType, msg),
         content: this.getMessageContent(msg),
         platformMessageId: msg.serverId ? String(msg.serverId) : undefined,
-        mediaPath: mediaMap.get(msg.localId) ? `http://127.0.0.1:${this.port}/api/v1/media/${mediaMap.get(msg.localId)!.relativePath}` : undefined
+        mediaPath: mediaMap.get(msg.localId) ? `http://${this.host}:${this.port}/api/v1/media/${mediaMap.get(msg.localId)!.relativePath}` : undefined
       }
     })
 

electron/services/voiceTranscribeService.ts

@@ -75,6 +75,14 @@ export class VoiceTranscribeService {
       if (candidates.length === 0) {
         console.warn(`[VoiceTranscribe] 未找到 ${platformPkg} 目录，可能导致语音引擎加载失败`)
       }
+    } else if (process.platform === 'win32') {
+      // Windows: 把 sherpa-onnx DLL 所在目录加到 PATH，否则 native module 找不到依赖
+      const existing = env['PATH'] || ''
+      const merged = [...candidates, ...existing.split(';').filter(Boolean)]
+      env['PATH'] = Array.from(new Set(merged)).join(';')
+      if (candidates.length === 0) {
+        console.warn(`[VoiceTranscribe] 未找到 ${platformPkg} 目录，可能导致语音引擎加载失败`)
+      }
     }
 
     return env