Write current model state when run fails

[shartgring]

Feature type

Adding new functionality

Improvement Description

When a run fails, it now has to be restarted for the full run period. It might be useful to write the current model state as state output given that state.path_output exists in the config. This will give the option to restart the model with the state of the last timestep

Implementation Description

Would it be possible to 'catch' the error and run a function? Or will an error/exception inevitably mean that no function can be run after the error is catched? Or is this behaviour not supported/desired in Julia

Additional Context

No response

[visr]

This should be possible, we already do some logging on a crash:

Wflow.jl/src/Wflow.jl

Lines 169 to 178 in 37ae6dd

	catch e
	# avoid logging backtrace for the single line FEWS log format
	# that logger also uses SimpleLogger which doesn't result in a good backtrace
	if fews_run
	@error "Wflow simulation failed" exception = e _id = :wflow_run
	else
	@error "Wflow simulation failed" exception = (e, catch_backtrace()) _id =
	:wflow_run
	end
	rethrow()

That could be expanded to write the state as well.