The preparation of the inference workspace and the execution itself are refactored into separate rules. Closes #65.

Motivation

• separation of concerns improves the workflow's clarity and traceability
• we get a single inference execution rule

Nice extra: debugging inference becomes easier. Starting from the top-level directory, we can now run a single case with

cd output/data/runs/<run-id>/
uv sync && cd <YYYYmmHHMM>/
uv run anemoi-inference run config.yaml

Summary of changes:

• removed rules inference_forecaster and inference_interpolator
• created rule prepare_inference_forecaster to set up a forecaster's inference workspace, including the updated config and the resources
• created rule prepare_inference_interpolation to set up an interpolator's inference workspace, including the updated config, the resources and the parent forecaster's directory (note: this is also created when the "forecaster" is actually the analysis, but we create a placeholder - this is because we cannot conditionally add or remove an output from a rule)
• created rule execute_inference which will be the same for any kind of model executed with anemoi-inference run config.yaml
• added a logging setup helper in common.smk so it can be used in a rule's run directive
• updated the base anemoi-inference version requirements to >=0.8.0,<0.9.0