Author Matins hymns for the categories/saints from this session's Lauds/Vespers pass

resolveMatinsHymn (hours/matins.ts) is a separate mechanism from
resolveOfficeBundle, with its own fallback chain (proper -> active
octave -> Common via SaintRecord.common -> season -> ferial). Only the
Confessor family and Apostle had a matins-hymn-<id>.yml before this
pass; everything else fell through to season/ferial at Matins
specifically, even after the Lauds/Vespers fixes.

Live-verified and authored: common-of-several-martyrs ("Ætérna Christi
múnera, Et Mártyrum victórias"), common-of-an-abbot and
common-of-several-confessors (= Confessor-Not-Bishop's hymn, same label
finding as Lauds/Vespers), common-of-a-virgin-martyr/-virgin ("Vírginis
Proles"), common-of-a-holy-woman/-widow (a genuinely shorter closing-two-
stanzas form, "Hujus obténtu, Deus alme"), Guardian Angels/St.
Michael/St. Gabriel/St. Raphael (reused from St. Michael's Apparition,
confirmed via SanctiM/05-08.txt's own cross-reference), common-of-the-
bvm ("Quem terra, pontus, ǽthera"), Finding/Exaltation of the Holy Cross
("Pange, lingua, gloriósi," the Nativity-themed other half of the same
poem as Lauds' own hymn), and the Transfiguration (byte-identical to its
own Vespers hymn).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014axryJBrRswYh2niA7WCUc

src/data/propers/common/matins-hymn-st-michael.yml

@@ -0,0 +1,71 @@
+# Matins hymn for St. Michael's Apparition and the whole Angel family
+# (Guardian Angels, St. Michael's own Sep 29 feast, St. Gabriel, St.
+# Raphael) -- confirmed byte-identical to the Vespers hymn via
+# SanctiM/05-08.txt's own [HymnusM Matutinum] `@:HymnusM Vespera`
+# cross-reference, live-verified 2026-05-08 (Monastic Tridentinum 1617).
+# Same Guardian-Angels/Archangels proper-content-reuse finding as this
+# session's earlier Lauds/Vespers pass -- no `common-of-an-angel`
+# category exists in the source at all.
+id: matins-hymn-st-michael
+text:
+  la: |
+    Tibi Christe splendor Patris,
+    Vita, virtus córdium,
+    In conspéctu Angelórum,
+    Votis, voce psállimus:
+    Alternántes concrepándo
+    Melos damus vócibus.
+
+    Collaudámus venerántes
+    Omnes cæli mílites,
+    Sed præcípue Primátem
+    Cæléstis exércitus:
+    Michaélem in virtúte
+    Conteréntem zábulum.
+
+    Quo custóde procul pelle,
+    Rex Christe piíssime,
+    Omne nefas inimíci:
+    Mundo corde et córpore,
+    Paradíso redde tuo
+    Nos sola cleméntia.
+
+    Glóriam Patri melódis
+    Personémus vócibus,
+    Glóriam Christo canámus,
+    Glóriam Paráclito,
+    Qui trinus et unus Deus
+    Exstat ante sǽcula.
+    Amen.
+  en: |
+    Thee, O Christ, the Father's splendour,
+    Life and virtue of the heart,
+    In the presence of the Angels
+    Sing we now with tuneful art,
+    Meetly in alternate chorus
+    Bearing our responsive part.
+
+    Thus we praise with veneration
+    All the armies of the sky;
+    Chiefly him, the warrior Primate,
+    Of celestial chivalry,
+    Michael, who in princely virtue
+    Cast Abaddon from on high.
+
+    By whose watchful care repelling -
+    King of everlasting grace -
+    Every ghostly adversary,
+    All things evil, all things base,
+    Grant us of thine only goodness
+    In thy Paradise a place.
+
+    Laud and honour to the Father,
+    Laud and honour to the Son,
+    Laud and honour to the Spirit,
+    Ever Three, and ever One,
+    Consubstantial, co-eternal,
+    While unending ages run.
+    Amen.
+status:
+  la: verified
+  en: verified