Continues the ConfigLoader.cpp domain split. parseRecipeOutputs is only
used by loadRecipes, so it moves along as a domain-local anonymous-
namespace helper rather than into TomlHelpers. Pure move; no logic
change.
Co-Authored-By: Claude <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YHcUerKAZKWNvSKJxYKbnG