EstimateVsOracle

Phase 4: the reported rate against the god's-eye rate, and the gap

3/3 passed in 1115ms

Test	What it does	Result
test_est_never_beats_oracle	Under q.FiniteSize the reported rate is positive and never exceeds the oracle rate at 12 seeds.	✅ pass
test_explain_labels_both	explain() labels T_est, xi_est, t_min, xi_max, xi_oracle and key_oracle "derived", and stages names the estimation step.	✅ pass
test_oracle_is_the_channel	res.oracle reports the pinned $T$ and the input-referred $\xi$ including ${\xi }_{phase}$, and the estimates differ from it.	✅ pass