chore: 更新版本号并修改ai对话视图图标

将版本号从1.0.19+62升级至1.0.20+67
将ai对话视图中的图标从smart_toy_outlined替换为support_agent以提升视觉一致性

lib/modules/agent/views/agent_view.dart

@@ -92,7 +92,7 @@ class _AgentViewState extends State<AgentView> with WidgetsBindingObserver {
                 ],
               ),
               child: Icon(
-                Icons.smart_toy_outlined,
+                Icons.support_agent,
                 color: Colors.white,
                 size: 22.sp,
               ),

pubspec.yaml

@@ -1,7 +1,7 @@
 name: voitrans
 description: "Voitrans - AI Voice Assistant."
 publish_to: "none"
-version: 1.0.19+62
+version: 1.0.20+67
 
 environment:
   sdk: ">=3.3.0 <4.0.0"