Add conversation_id to VA start request (#437)

aioesphomeapi/api.proto

@@ -1423,6 +1423,7 @@ message VoiceAssistantRequest {
   option (ifdef) = "USE_VOICE_ASSISTANT";
 
   bool start = 1;
+  string conversation_id = 2;
 }
 
 message VoiceAssistantResponse {

aioesphomeapi/client.py

@@ -1266,7 +1266,7 @@ class APIClient:
 
     async def subscribe_voice_assistant(
         self,
-        handle_start: Callable[[], Coroutine[Any, Any, Optional[int]]],
+        handle_start: Callable[[str], Coroutine[Any, Any, Optional[int]]],
         handle_stop: Callable[[], Coroutine[Any, Any, None]],
     ) -> Callable[[], None]:
         """Subscribes to voice assistant messages from the device.
@@ -1294,7 +1294,7 @@ class APIClient:
         def on_msg(msg: VoiceAssistantRequest) -> None:
             command = VoiceAssistantCommand.from_pb(msg)
             if command.start:
-                start_task = asyncio.create_task(handle_start())
+                start_task = asyncio.create_task(handle_start(command.conversation_id))
                 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

@@ -989,6 +989,7 @@ class BluetoothDeviceRequestType(APIIntEnum):
 @dataclass(frozen=True)
 class VoiceAssistantCommand(APIModelBase):
     start: bool = False
+    conversation_id: str = ""
 
 
 class LogLevel(APIIntEnum):