wrong cascading type for field.config bypass native physicalType

[dmaresma]

datacontract-cli/datacontract/export/sql_type_converter.py

Line 96 in 4245d0e

physical_type = _get_config_value(field, "physicalType")

the cascading of function from :
def convert_to_sql_type(field: Union[SchemaProperty, FieldLike], server_type: str) -> str:
physical_type = _get_physicalType(field)
-->
_get_config_value and then _get_config to try to catch the physicalType wont append cause :
schemaProperty class does't have a field.config

the sql Export will ignore automaticaly the provided physicalType

the _get_config function should looklike this :

    """Get the config from a field, handling both ODCS and DCS."""
    if isinstance(field, SchemaProperty):
        config = field.model_dump()
        if field.customProperties:
            config.update({cp.property: cp.value for cp in field.customProperties})
        return config
    return None```

or 

implement a dedicated function like _get_type for the physicalType only :
```def _get_physicalType(field: Union[SchemaProperty, FieldLike]) -> Optional[str]:
    """Get the type from a field, handling both ODCS and DCS. only physicalType for accuracy."""
    if field and isinstance(field, SchemaProperty):
        # Prefer physicalType for accurate type mapping
        if field.physicalType:
            return field.physicalType
    if field and field.type:
        return field.type
    return None```

At now the `convert_to_sql_type` ignore the physicalType and use the logicaType by default, 

At the End all the test using the convert_to_sql_type `Drift` from dcs to odcs