`AeromancyStruct.validate` needs better error messages

[dmcc]

[...]
src/colocation/colocation.py:29: in __init__
    self.metadata.validate()
.venv/lib/python3.10/site-packages/aeromancy/struct.py:87: in validate
    self.decode(self.encode(format="msgpack"), format="msgpack")
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

cls = <class 'colocation.structs.Metadata'>
encoded_bytes = b'\x83\xabinstruments\x9d\x91\x8d\xadinstrument_id\xa8ref-PM25\xafinstrument_type\x01\xa9pollutant\xa4pm25\xaftime_res...etary\xa4note\xc0\xa5parts\xc0\xa9num_parts\x01\xafgps_coordinates\x92\xcb@P6\x1f\xc8\xf3#y\xcb\xc0bwF\xf7\xa0\xb5\xee'
format = 'msgpack'

    @classmethod
    def decode(cls, encoded_bytes: bytes, format: str):
        """Deserialize this `msgspec.Struct` from bytes.
    
        Parameters
        ----------
        encoded_bytes
            Bytes to attempt to deserialize.
        format
            The format to used to encode the `msgspec.Struct`. This can be
            "yaml", "json", or "msgpack".
    
        Returns
        -------
        An instance of this class decoded according to `format`.
        """
        match format:
            case "yaml":
                return msgspec.yaml.decode(encoded_bytes, type=cls)
            case "json":
                return msgspec.json.decode(encoded_bytes, type=cls)
            case "msgpack":
>               return msgspec.msgpack.decode(encoded_bytes, type=cls)
E               msgspec.ValidationError: Expected `object`, got `array` - at `$.instruments[0]`

.venv/lib/python3.10/site-packages/aeromancy/struct.py:71: ValidationError

Catching and rethrowing the message with more details should help substantially.