fix(ordo): correct L5/F3 misadjudication -- Cum Sanctissima, not a gap

data/ef/expected-divergences-lms.sexp's L5 (16 dates, LMS Ordo Gloria=true
vs colitur's false) and data/ef/expected-divergences-fiuv.sexp's F3 (6
dates, FIUV Te Deum=true vs colitur's false) were both misadjudicated as
colitur's own gap under an RG 302(b)/431(b) hypothesis. Both are wrong.

These are occurrence differences from the 2020 decree Cum Sanctissima,
which colitur excludes from its 1962 core by binding design (CLAUDE.md
decision 2). RG 303(b) ("dici potest tantum si occurrit dies liturgicus IV
classis") already prohibits 302(b) on the Class3 privileged ferias both
entries cover -- the original text quoted 303(b) but never followed it to
its conclusion. Decisively, the FIUV Ordo prints BOTH readings on the six
shared dates, separated by a literal "-VEL-" token: the primary, strict-
1962 reading (feria wins, sine Gloria, no Te Deum) matches colitur exactly;
the second, Cum-Sanctissima reading (saint kept, Gloria, Te Deum) matches
the LMS Ordo exactly.

F3 itself was never a real Te Deum finding: tools/extract_fiuv_ordo.ml's
extract_te_deum scanned each block unbounded for "Ad Mat.", so on these six
days -- whose primary office states no "Ad Mat." of its own -- it silently
read the second office's own Te Deum instead. Fixed with a new
split_at_alt_office, cutting every block at "-VEL-" before any field
extraction runs; the alternative is captured, not discarded, in a new
alt_te_deum field. A hard characterisation probe asserts the split fires on
exactly the six known dates.

Auditing for the same trap elsewhere (this is the third such manufactured
divergence in this project) found a related but narrower marker, "Vel (sec.
decretum <<Cum sanct.>>) Missa ...", offering an alternate Mass formulary
within a single office. It never corrupted Gloria/Credo (always stated
before the marker on all 20 real instances, confirmed by diff), only the
uncompared praef field; hardened defensively anyway, before it could ever
fire live. The LMS Ordo (all three editions) carries no equivalent
dual-print mechanism at all. expected-divergences-missalemeum.sexp's M27
is the same genus but was already correctly adjudicated, not touched.

Both allow-list entries are rewritten, not deleted: the original SHAPE/
CITATION/WHY-NOT-FIXED-HERE reasoning is preserved verbatim as a recorded,
superseded hypothesis, matching this project's own correction convention.
test_lms_ordo.ml's matching predicate is unchanged (the 16-date population
still fires, and always will, because it reflects a standing exclusion,
not a bug); only its citation comment is corrected. test_fiuv_ordo.ml's
F3-specific predicate/count assertion is removed, matching this file's own
prior F2/F4 closure discipline.

lib/ is untouched. dune test: 676/676. make check
(COLITUR_EXHAUSTIVE_SWEEP=1, full 1583-9999 domain): 678/678.

0 files changed, 0 insertions, 0 deletions