Add use_vad flag to VA start request (#438)

aioesphomeapi/api.proto

@@ -1424,6 +1424,7 @@ message VoiceAssistantRequest {
 
   bool start = 1;
   string conversation_id = 2;
+  bool use_vad = 3;
 }
 
 message VoiceAssistantResponse {

aioesphomeapi/client.py

@@ -1266,7 +1266,7 @@ class APIClient:
 
     async def subscribe_voice_assistant(
         self,
-        handle_start: Callable[[str], Coroutine[Any, Any, Optional[int]]],
+        handle_start: Callable[[str, bool], Coroutine[Any, Any, Optional[int]]],
         handle_stop: Callable[[], Coroutine[Any, Any, None]],
     ) -> Callable[[], None]:
         """Subscribes to voice assistant messages from the device.
@@ -1294,7 +1294,9 @@ class APIClient:
         def on_msg(msg: VoiceAssistantRequest) -> None:
             command = VoiceAssistantCommand.from_pb(msg)
             if command.start:
-                start_task = asyncio.create_task(handle_start(command.conversation_id))
+                start_task = asyncio.create_task(
+                    handle_start(command.conversation_id, command.use_vad)
+                )
                 start_task.add_done_callback(_started)
                 # We hold a reference to the start_task in unsub function
                 # so we don't need to add it to the background tasks.

aioesphomeapi/model.py

@@ -990,6 +990,7 @@ class BluetoothDeviceRequestType(APIIntEnum):
 class VoiceAssistantCommand(APIModelBase):
     start: bool = False
     conversation_id: str = ""
+    use_vad: bool = False
 
 
 class LogLevel(APIIntEnum):