Add a fourth model profile preset that assigns models by agent role:
opus for planning and debugging (reasoning-critical), sonnet for
execution and research (follows instructions), haiku for mapping and
checking (high volume, structured output).
This gives solo developers on paid API tiers a cost-effective middle
ground — quality where it matters most (planning) without overspending
on mechanical tasks (mapping, checking).
Per-agent overrides via model_overrides continue to take precedence
over any profile preset, including adaptive.
Closes#1713
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
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