H-102 dependency / firewall chain
=================================

Exact field chain retained unchanged:
- h049_numerical_instrument_convergence.py
    inherited p=0 direct symmetric Dirichlet/DST field solver
- h062_gr_required_node_route_attack.py
    FrostCell corner geometry + all-eight-corner affine frame helpers only
- h070_multicell_radial_nonode_attack.py
    inherited FrostCell deformation conventions only
- h088_signed_residual_finite_cell_attack.py
    frozen K / p=0 constants only
- h100_single_high_r_tail_probe.py
    memory-lean exact R65 field allocation; previously validated bit-for-bit
    against the inherited direct field solver

H-102 adds measurement only:
- exact equal-radius shell finder using half-integer FrostCell centers;
- local radial/tangential frame decomposition;
- 12 FrostSegment edge-length / edge-tilt telemetry;
- radial shell-template residual measurement;
- q4/q6 cubic-orientation descriptive shadow with leave-one-out checking;
- consecutive radial-layer interpolation telemetry.

No GR scorer is called. No photon path is generated. No optimization model feeds
the exact field. No gravity/node mechanics are changed. Planetary/Jupiter
holdouts remain sealed.
