Improve error messages from fridge system

[danr]

Improve error messages from fridge system:

2025-03-24 15:37:18.517|fridge|255872|{"msg":"stx.write(b'STX2ServiceMovePlate(STX,1,0,0,1,1,STX,2,2,13,1,1)\\r')"}
2025-03-24 15:37:52.389|fridge|255872|{"msg":"stx.read() = b'-STX;1\\r\\n'"}
2025-03-24 15:37:52.458|fridge|255872|{"msg":"Traceback (most recent call last):"}
2025-03-24 15:37:52.467|fridge|255872|{"msg":"  File \"c:\\robotlab\\labrobots\\labrobots\\machine.py\", line 186, in call"}
2025-03-24 15:37:52.474|fridge|255872|{"msg":"    value = fn(*args, **kwargs)"}
2025-03-24 15:37:52.482|fridge|255872|{"msg":"  File \"c:\\robotlab\\labrobots\\labrobots\\liconic.py\", line 326, in insert"}
2025-03-24 15:37:52.488|fridge|255872|{"msg":"    self.put(loc)"}
2025-03-24 15:37:52.493|fridge|255872|{"msg":"  File \"c:\\robotlab\\labrobots\\labrobots\\liconic.py\", line 188, in put"}
2025-03-24 15:37:52.498|fridge|255872|{"msg":"    self._move(trg_pos='Hotel', trg_slot=slot, trg_level=level)"}
2025-03-24 15:37:52.503|fridge|255872|{"msg":"  File \"c:\\robotlab\\labrobots\\labrobots\\liconic.py\", line 221, in _move"}
2025-03-24 15:37:52.509|fridge|255872|{"msg":"    assert self.call('STX2ServiceMovePlate', *args.values()) == \"1\""}
2025-03-24 15:37:52.515|fridge|255872|{"msg":"AssertionError"}
2025-03-24 15:37:52.521|fridge|255872|{"cmd":"insert","args":["1117136620","PHE002"],"type":"error","error":"AssertionError()"}
2025-03-24 15:41:49.927|fridge|256066|{"msg":"insert('1117136620', 'PHE002')","cmd":"insert","args":["1117136620","PHE002"],"type":"call"}
2025-03-24 15:41:49.940|fridge|256066|{"msg":"stx.write(b'STX2ServiceMovePlate(STX,1,0,0,1,1,STX,2,2,13,1,1)\\r')"}
2025-03-24 15:41:51.098|fridge|256066|{"msg":"stx.read() = b'-STX;7\\r\\n'"}
2025-03-24 15:41:51.108|fridge|256066|{"msg":"Traceback (most recent call last):"}
2025-03-24 15:41:51.116|fridge|256066|{"msg":"  File \"c:\\robotlab\\labrobots\\labrobots\\machine.py\", line 186, in call"}
2025-03-24 15:41:51.125|fridge|256066|{"msg":"    value = fn(*args, **kwargs)"}
2025-03-24 15:41:51.133|fridge|256066|{"msg":"  File \"c:\\robotlab\\labrobots\\labrobots\\liconic.py\", line 326, in insert"}
2025-03-24 15:41:51.140|fridge|256066|{"msg":"    self.put(loc)"}
2025-03-24 15:41:51.145|fridge|256066|{"msg":"  File \"c:\\robotlab\\labrobots\\labrobots\\liconic.py\", line 188, in put"}
2025-03-24 15:41:51.151|fridge|256066|{"msg":"    self._move(trg_pos='Hotel', trg_slot=slot, trg_level=level)"}
2025-03-24 15:41:51.157|fridge|256066|{"msg":"  File \"c:\\robotlab\\labrobots\\labrobots\\liconic.py\", line 221, in _move"}
2025-03-24 15:41:51.162|fridge|256066|{"msg":"    assert self.call('STX2ServiceMovePlate', *args.values()) == \"1\""}
2025-03-24 15:41:51.167|fridge|256066|{"msg":"AssertionError"}
2025-03-24 15:41:51.172|fridge|256066|{"cmd":"insert","args":["1117136620","PHE002"],"type":"error","error":"AssertionError()"}```