Reach mirrors actionAct and hexisBeforeClarify: praxis needs an act plus a
fn slot equal to a capability alias, hexis needs an act plus non-empty text,
and a clarified act with text reaches hexis before the question is asked.
The two miss directions are counted apart because they cost different
things. Missed means he asks again. Overreach means a turn arrived at a
mutating path nobody sent it to, and he never gets asked about that one.
PraxisAliases is a copy of the registry in cmd/mavend. The registry lives in
package main and cannot be imported, and lifting it out is a refactor this
measurement should not be carrying.
