support google s2s host, version, sessionResumption (#1498)

lib/tasks/llm/llms/google_s2s.js

@@ -36,6 +36,9 @@ class TaskLlmGoogle_S2S extends Task {
     this.model = this.parent.model || 'models/gemini-2.0-flash-live-001';
     this.auth = this.parent.auth;
     this.connectionOptions = this.parent.connectOptions;
+    const {host, version} = this.connectionOptions || {};
+    this.host = host;
+    this.version = version;
 
     const {apiKey} = this.auth || {};
     if (!apiKey) throw new Error('auth.apiKey is required for Google S2S');
@@ -46,7 +49,7 @@ class TaskLlmGoogle_S2S extends Task {
     this.eventHook = this.data.eventHook;
     this.toolHook = this.data.toolHook;
 
-    const {setup} = this.data.llmOptions;
+    const {setup, sessionResumption} = this.data.llmOptions;
 
     if (typeof setup !== 'object') {
       throw new Error('llmOptions with an initial setup is required for Google S2S');
@@ -54,6 +57,7 @@ class TaskLlmGoogle_S2S extends Task {
     this.setup = {
       ...setup,
       model: this.model,
+      ...(sessionResumption && {sessionResumption}),
       // make sure output is always audio
       generationConfig: {
         ...(setup.generationConfig || {}),
@@ -138,6 +142,10 @@ class TaskLlmGoogle_S2S extends Task {
 
     try {
       const args = [ep.uuid, 'session.create', this.apiKey];
+      if (this.host) {
+        args.push(this.host);
+        if (this.version) args.push(this.version);
+      }
       await this._api(ep, args);
     } catch (err) {
       this.logger.error({err}, 'TaskLlmGoogle_S2S:_startListening');