Build the Vespers ordo: mechanism, weekday content, seasonal content

Wires resolveOrdo('vespers', ...) end to end: opening versicle,
weekday psalmody (4 groups, handling the joined Ps 115+116 and the
split Ps 138/143 via a PsalmRef-like shape), the chapter/responsory/
hymn/versicle office bundle, Magnificat, day-collects — reusing
resolveEveningDay so First/Second Vespers precedence and the cross-day
commemoration (both added in the previous commit) apply automatically
— and a closing that reuses Lauds' own conclusio, since no distinct
"Vespera" version of that exact text turned up in the source.

getMagnificatAntiphon mirrors getBenedictusAntiphon's saint/temporal-id
lookup order, but also falls back to real content Benedictus has no
equivalent of: the classic ferial set that quotes the Magnificat's own
text in sequence across the week, with the correct Monastic-rubric
variant picked for Tue/Thu/Fri/Sat (two of those needed a fresh
translation where the Monastic Latin diverges from the given English
in content, not just wording).

Also includes Vespers' own seasonal content (Advent/Lent/Passiontide/
Paschaltide chapter+responsory+hymn+versicle), transcribed from the
same source blocks as the weekday content, with the Monastic-specific
hymn variants hand-applied from the source's substitution notation
against each base Roman text (one transcription slip caught and fixed
mid-pass: the Passiontide hymn's closing lines had been copied from
the Roman text instead of the Monastic one actually being
transcribed). Passiontide's own responsory/hymn correctly omit the
Gloria Patri, matching real rubric and the source data as given.

All weekday/seasonal content marked `draft`, not `verified` — read
directly from the reference source, not cross-checked against a live
rendering per day the way the psalmody was.

Six other hours' resolvePart switches needed the three new HourPart
kinds ('vespers-psalmody', 'vespers-office', 'magnificat') added to
their exhaustive not-used lists so they still typecheck; three
pre-existing tests assumed Vespers was still "coming soon" and are
updated to exercise Matins (still the genuine stub) instead.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/data/hours/vespers.yml

@@ -0,0 +1,23 @@
+# Ordo assembled from Divinum Officium's Monastic block (see the
+# individual data/propers/common/vespers-*.yml and data/hours/vespers-
+# antiphons.yml/vespers-magnificat-antiphons.yml files for sourcing) — not
+# live-query-verified end-to-end (see TODO.md).
+#
+# Resolves off resolveEveningDay, not resolveDay — see hours/vespers.ts —
+# so First/Second Vespers precedence and the cross-day commemoration both
+# apply before any part below ever runs.
+#
+# The closing reuses `lauds-conclusio` (Benedicamus Domino / Fidelium
+# animae) rather than a Vespers-specific id — no distinct "Vespera"
+# version of this exact closing turned up in the source, and it's the
+# same fixed formula in real practice after either hour; flagged here in
+# case that assumption turns out wrong.
+id: vespers
+parts:
+  - kind: opening-versicle
+  - kind: vespers-psalmody
+  - kind: vespers-office
+  - kind: magnificat
+  - kind: day-collects
+  - kind: preces
+    textRef: { source: common, id: lauds-conclusio }