fix(controller): Bypass STX messages during command response

STX messages (sensor data) can be interleaved with command responses, similar to MU/MS messages.
The controller must skip these messages and continue waiting for the actual command response.
The STX message is parsed to ensure sensor data is handled correctly while waiting.

Author: sidey79

signalduino/controller.py

@@ -82,8 +82,11 @@ async def send_command(
                     timeout=timeout or SDUINO_CMD_TIMEOUT
                 )
 
-                # If it's an interleaved message, get next response
-                if response and (response.startswith("MU;") or response.startswith("MS;")):
+                # If it's an interleaved or STX message, get next response
+                if response and (response.startswith("MU;") or response.startswith("MS;") or response.startswith("\x02")):
+                    # Parse STX message if present
+                    if response.startswith("\x02"):
+                        self.parser.parse_line(response.strip())
                     # Create a new read task for the actual response
                     read_task2 = asyncio.create_task(self.transport.readline())
                     response = await asyncio.wait_for(