Praxis reach is zero on all twelve cases under both embedders, and it is
structurally impossible rather than merely weak: handlePraxisAct dispatches
on fn equality, and no praxis alias can ever enter the fn slot, because that
slot is filled from the deployment's tool allowlist.
Hexis reach is 9/10. All three services are up and answer; both praxis feeds
are empty, so the gap is entirely on Maven's side of the wire.
