docs(C39): day-level confirmation from the LMS Ordo

The Latin Mass Society Ordo 2024-2025 for England and Wales (v2.21,
compiled by Peter Day-Milne) gives 9 August 2025 as "OUR LADY on SATURDAY
IV Cl W / V Mass of BVM / Commem of St Romanus M at Low Mass" -- no vigil
-- and 10 August as the 9th Sunday after Pentecost with St Laurence
commemorated. That is colitur's output on both days, field for field.

It is discriminating where the Ordo already in docs/research was not. This
edition lists six vigils as the day's office across its year, including the
Assumption's on 14 August 2025, and its footnotes discuss arranging a
diocesan feast around the Vigil of St Laurence in other years. Its absence
on 9 August 2025 is an application of the rule, not a data gap. The
extraordinaryform.org Ordo omits that vigil on every date it covers,
including 2027-08-09 where the clause says to keep it, which is why it
witnesses nothing here.

Also confirms the Vigil of the Assumption as II Cl violet, the RG 128
colour this project corrected from the bootstrap's White.

The clause's other shape -- feast transferred away, 2022/2033/2038/2044 --
remains unwitnessed; no accessible Ordo covers those years. Stated in the
note rather than left implied.

1 files changed, 11 insertions, 7 deletions

diff --git a/test/test_golden.ml b/test/test_golden.ml
index 14fbec4..ba25d8a 100644
--- a/test/test_golden.ml
+++ b/test/test_golden.ml
@@ -1363,13 +1363,17 @@ let test_vigil_of_st_lawrence_is_violet_2027 () =
    freed IV-class Saturday, which is why this pin reads white and subject=bvm.
    St Romanus keeps his commemoration either way (RG 111).
 
-   NOT independently witnessed, and an earlier version of this comment wrongly
-   said it was. The published Ordo does omit the vigil on this date -- but it
-   also omits it on 2027-08-09, where this clause says to KEEP it, so it never
-   shows St Lawrence's vigil at all in the years it covers and cannot
-   corroborate anything here. This pin rests on RG 33's own text and on the
-   fact that lectio never evaluates the clause (it appears nowhere in its
-   production code); see C39's own note in
+   INDEPENDENTLY WITNESSED at the day level, though not by the Ordo this
+   project already had. That one (extraordinaryform.org) omits the vigil here
+   AND on 2027-08-09 where the clause says to keep it, so it never shows St
+   Laurence's vigil at all and corroborates nothing -- a claim an earlier
+   version of this comment got wrong in both directions before checking.
+   The Latin Mass Society Ordo 2024-2025 for England and Wales does the job:
+   9 August 2025 is "OUR LADY on SATURDAY IV Cl W / Commem of St Romanus M",
+   no vigil, and 10 August is the II-class Sunday with St Laurence reduced to
+   a commemoration -- this pin's exact content. It is discriminating because
+   that edition lists six other vigils as the day's office, including the
+   Assumption's on 14 August 2025. See C39's own note in
    data/ef/expected-divergences.sexp. *)
 let test_rg33_vigil_omitted_when_its_feast_is_commemorated_2025 () =
   check