some fixes again

python_app/hardware_full/laser_control/controller.py

@@ -361,7 +361,16 @@ class LaserController:
         raw = self._protocol.receive_raw(2)
         if raw and len(raw) == 2:
             state = Protocol.decode_state(raw)
-            logger.debug("STATE response after command: 0x%04x", state)
+            if state != 0:
+                # Surface a device-reported non-OK STATE instead of silently treating
+                # a board-rejected command as success. (Returned to the caller too.)
+                logger.warning(
+                    "Device returned non-OK STATE 0x%04x after command: %s",
+                    state,
+                    Protocol.state_to_description(f"{state:04x}"),
+                )
+            else:
+                logger.debug("STATE response after command: 0x%04x", state)
             return state
         return 0