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Issue: Config file parser does not support compact range notation for lists

Issue: Config file parser does not support compact range notation for lists: a task in LegoFlow-SWE (Harbor dataset). The INI config parser currently requires all list elements to be written out explicitly. This is tedious and error‑prone when defining sequences of numbers (e.g., for processor…

The task

The INI config parser currently requires all list elements to be written out explicitly. This is tedious and error‑prone when defining sequences of numbers (e.g., for processor affinity groups). The parser should support a compact **`from..to..step`** range notation inside lists.

Part of Lego-X/LegoFlow-SWE.