mavend: he can pick one by position (V-448)

Read before routing and only when a list is bound: with nothing offered,
"второй" is an ordinary word and keeps routing. No verb reads it back
rather than guessing what to do with it.

cmd/mavend/voice.go

@@ -308,6 +308,14 @@ func (h *reactiveHandler) runTurn(ctx context.Context, text string, src turnSour
 		return withNotice(expiredNotice, reply)
 	}
 
+	// 4e. ordinal selection — "второй", "первую сделал" pick from the list she
+	// just read (ordinal.go). Before routing, and only when a list is actually
+	// bound to the session: with nothing offered, "второй" is an ordinary word
+	// and keeps routing.
+	if reply, handled := h.resolveCandidate(ctx, text); handled {
+		return withNotice(expiredNotice, reply)
+	}
+
 	// 5. route. An elliptical follow-up — "а завтра?" — is answered from the
 	// previous turn instead (continuation.go): the intent is the part it is
 	// missing, so no amount of routing recovers it, and the model's guess