canonical-mt vs merkle-spine vs canonical-ml

Canonical Mutable Tree — the single-algorithm mutable tree over the Merkle Spine

Merkle Spine — the structural core: canonicalization (collapse + promotion), the proof spine, inclusion and leaf proofs, and the general structural Seal. Epoch-free.

CML — the single-algorithm canonical append log over the Merkle Spine: frontier carry, root folds, the append-only consistency proof, inclusion/leaf proof generation, and the structural snapshot facet. No epochs, no multi-algorithm.