VALID_PROFILES was derived solely from Object.keys(MODEL_PROFILES['gsd-planner']),
which only contained the named tiers (quality/balanced/budget/adaptive). The
cmdConfigSetModelProfile validator rejected 'inherit' even though the runtime has
supported it since #1829. Fix: append 'inherit' to VALID_PROFILES and handle it
in getAgentToModelMapForProfile so the agent→model table shows 'inherit' instead
of undefined.
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
