pub fn model_intent(turn: &Value) -> Option<String>Expand description
2026-09-26: The model’s intent code: the explicit intent: I123 form,
searched over reasoning_content then content (the explicit pass covers
both fields before the fallback runs over either), then the last bare
I123 token as fallback. The explicit form is case-insensitive and
upper-cased; the bare fallback is case-sensitive, as the fixture
"maybe i123" pins.