H-090 dependency chain / frozen inheritance
============================================

Primary H-090 file:
  h090_continuous_within_cell_steering.py

Direct inherited controls:
  h088_signed_residual_finite_cell_attack.py
  h089_wall_to_wall_continuous_transit_control.py

Frozen steering law:
  sqrt(current-cell convergence magnitude) * sin(theta)^3
  K = 8.6816265415871847e-05
  R^2 normalization
  p = 0 LOCKED

H-090 changes no gravity coefficient or exponent.
It adds only a no-node diagnostic integrator that applies the same current-cell
steering continuously inside the occupied FrostCell until the first wall event.

Active exploratory resolutions:
  R25, R33
Deferred high-R validation resolutions:
  R39, R45

Planetary/Jupiter holdout remains sealed.
