new discovery phase

scripts/serial_direct_response_sweep.py

@@ -58,7 +58,7 @@ def parse_byte_set(text: str) -> list[int]:
             values.append(parse_byte(part))
     if not values:
         raise argparse.ArgumentTypeError("empty byte set")
-    return list(dict.fromkeys(values))
+    return values
 
 
 def build_frame(prefix1: int, prefix2: int, command: int, state: int, value: int) -> bytes: