`[2026-07-04]` **R30 CLOSED on offline-tests + human face-validity (operator steer, relayed via worldtree-dev).** The deployed gap-injection run was confirmatory-not-measuring (against a deployed system the fade is `exp(-dt/tau_shipped)` by construction -> a fit recovers tau_shipped tautologically; per brokkr's S0 reframe it GRADUATES the interim coefficients, doesn't measure them), and the repo's offline tests already cover the OU formula + BOTH directions (`high_N_fades_slower_than_low_N`, `phenotype_high_n_bigger_negative_excursion`). So no Worldtree build; the interim coefficients graduate validated-as-shipped. My gap-injection harness (read/predict/record; write side stubbed; `predict()` reproduced brokkr's N=0 anchors exactly) is BANKED at `diag/r30-gap-injection-harness` for the parked powered true-tau study. [continues R30 forward-disposition 2026-07-03]