v0.428.0 — THE VELOCITY TIER SHIP

B266 (PAPER_2262): the Vp tier CANONIZED on Daniel's ruling - "Canonize
with soft-anchor disclosure." The OPEN item that B265 itself created
closes one band later.

- Seventeen sonic landmarks composed LIVE from the locked lattice
  {D_phys, D_BSFG, N_ch, SO_5, D_crit, A_5}: ELEVEN exact on their
  midpoint anchors; worst residual peridotite 0.62%.
- THE SOFTNESS, DISCLOSED WHERE IT ACTS: anchors are range midpoints
  quoted to 0.05 km/s, so /10 and /20 rationals land cheaply. Stated in
  the module docstring, the paper, and the gate pin - not hidden.
- Headline identities: dolomite Vp = (A_5+SO_5)/SO_5 = 7.0 km/s - the
  H_0 integer (PAPER_1573) surfacing in a laboratory acoustic anchor -
  and the UNIT-FREE dolomite/halite anchor cross-ratio =
  D_phys*SO_5/D_crit = 20/13 EXACT, immune to unit conventions.
- The amphibolite/basalt twin ratio has NO clean primitive form - said
  plainly. Classification continues to use RANGES; the joint
  classifier's honesty contract is untouched.
- Corpus precedent: PAPER_1204 S494 + PAPER_1209Y S572 sound-speed
  closures; the K4 density tier's own search-then-rule pattern.

Simulator v1.90.0. Acceptance 109/109 (Z10 new). Gate 6,085/0.
Registry 7,075 rows. Dispatch 2,313 keys (PAPER_2262 wired, Rule B).
GFZ deep-sonic request drafted for Daniel - one file settles Prediction
V2, the flagged (1+F_TRZ) family offset, and the lab-to-in-situ Vp
transfer that upgrades the joint classifier to species level.
