CrossThreshold

Click, decoy and relay engines on one threshold detector

2/2 passed in 1ms

Test	What it does	Result
test_click_gain	The click engine at a coherent amplitude and the decoy layer at a phase-randomised intensity both return $1-(1-d)e^{-\eta \mu }$, at four phases.	✅ pass
test_relay_ports	With no light and no dark counts on port d, the relay's exactly-one-fired count reduces to port c's click probability.	✅ pass