[FEATURE] improved configuration and data structures

[theissenhelen]

Is your feature request related to a problem? Please describe.

Currently, configurations are dealt with purely using yaml files. It would be advantageous to have a solution that is more readable and allows e.g. type checking or and auto-completion in the IDE. Ideally, the solution would also implement validation. This should also integrate with Hydra configuration management (see config Store).

Describe the solution you'd like

Upgrade configs using the following steps:

• implement Config Stores with dataclasses
• Upgrade to pydantic
• assess how restrictive rules should be
• add documentation

Check if necessary to refactor to a new API, possible steps:

• Refactor model and graph into a hierarchical architecture config
• Refactor data and data loader

Describe alternatives you've considered

Additional context

No response

Organisation

No response