forcing generation is broken: config is read from forcing file

[BSchilperoort]

In the config loader, the config is read from the forcing file:

ewatercycle-marrmot/src/ewatercycle_marrmot/model.py

Lines 201 to 207 in 4a70bf0

	@model_validator(mode="after")
	def _initialize_config(self) -> "MarrmotM14":
	assert self.forcing.directory is not None
	assert self.forcing.forcing_file is not None
	forcing_filepath = str(self.forcing.directory / self.forcing.forcing_file)
	self._config = sio.loadmat(forcing_filepath, mat_dtype=True)

However, when forcing is generated from ERA5/CMIP this configuration is missing. This prevents the user from running the model, unless they specify all required parameters as kwargs in model.setup().

This can be solved by implementing default parameters, which will be overwritten by any parameters in the config file or by user specified kwargs.