fusion/.changeset/add-model-presets.md

@gsxdsm/fusion

@gsxdsm/fusion
minor

Add model presets for configurable AI model profiles. Users can define preset configurations like "Budget", "Normal", and "Complex" with pre-assigned executor and validator models. Tasks can reference presets instead of manual model selection. Includes auto-selection feature that assigns presets based on task size (S/M/L).