docs(roadmap): Phase D shipped — fit_nhmm migrated to hmm_core.nhmm

The crypto dashboard's `fit_nhmm` has been migrated from a local 2-stage
re-implementation to delegating `hmm_core.nhmm.fit_nhmm` with canonical
state reordering preserved on top. Combined with the 2026-05-22 AM
migration of `fit_hmm`, the dashboard now consumes hmm-studio end-to-end.

Equivalence validated by 7 new regression tests in the crypto repo
(test_nhmm_regression.py) :
- A_t byte-equal at atol=1e-10 after canonical reordering
- Base log-likelihood matches at rel_diff < 1e-6

Full crypto suite : 245 -> 252 tests, 0 regressions.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: Robin DENIS

docs/roadmap.md

@@ -211,10 +211,8 @@ Phase    Sous-projet                       Statut         Dépend de   Échéanc
          (gated on A.6 ship)                                         (gated comme A.6)
    A.6   BayesianHMMBackend (PyMC/NumPyro) OPTION         A.5, B,     conditionnel
          — option défendue, pas engagement                signal ext. (voir gating)
-   D     Migration dashboard crypto        VALIDATED      A           regression test
-                                           (regression               passe, ADR ajoutée
-                                           + ADR, pas               dans crypto repo,
-                                           swap)                     non commitée
+   D     Migration dashboard crypto        SHIPPED        A, A.1      livré 2026-05-22 PM
+         (fit_hmm + fit_nhmm délégués)                                 9 tests régression verts
    Z.1   GitHub Actions CI + pre-commit    SHIPPED        —           livré 2026-05-22
    Z.5   Licence MIT + CITATION.cff        SHIPPED        —           livré 2026-05-22
    B     hmm-studio web UI                 SPEC DRAFTED   A, A.1      ~6-8 semaines