Author Common-of-a-Martyr(-Bishop) Lauds/Vespers chapter/responsory/hymn/versicle

St. Zephyrinus (Aug 26, common-of-a-martyr-bishop, Simplex) claims First
Vespers over St. Louis's Aug 25, but that evening was showing the plain
ferial hymn instead of a real Common-of-a-Martyr hymn: no content had
been authored yet for this Common category's Lauds/Vespers bundle, so
resolveOfficeBundle's chapter lookup came back missing and the whole
bundle fell through to the ferial default.

Live-verified against Divinum Officium (Monastic Tridentinum 1617)
votive=C2b: chapter Jac 1:12, Lauds hymn "Martyr Dei, qui unicum," Vespers
hymn "Deus tuorum militum," shared versicle "Justus ut palma florebit."
Used the votive-office view rather than a real saint's own day for the
same structural reason as the earlier Confessor-Not-Bishop fix: every
real Common-of-a-Martyr-Bishop saint either has proper content of his own
(St. Lawrence, St. Stephen) or never reaches the rank needed to keep his
own Vespers (St. Zephyrinus, St. Callistus). Cross-checked votive=C2/C2a/
C2b/C2-1 all render identical text, so the same 7 files were duplicated
under the plain common-of-a-martyr id too (St. Hadrian, St. Hermes, St.
Fidelis of Sigmaringen).

Updates one existing Vespers test whose date (2026-03-03) turned out to
also anticipate St. Lucius I's First Vespers, previously masked by this
same content gap; adds two new proof tests and a TODO.md entry.

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

src/data/propers/common/lauds-hymn-common-of-a-martyr.yml

@@ -0,0 +1,81 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Lauds
+# `votive=C2` live query, 2026-08 -- see lauds-capitulum-common-of-a-
+# martyr-bishop.yml's header for why the votive-office view was used.
+# "Martyr Dei, qui únicum" -- the classic Common-of-a-Martyr Lauds hymn,
+# a single genuine recension (no Urban VIII variant text found for this
+# one in the reference engine, unlike Iste Confessor's).
+id: lauds-hymn-common-of-a-martyr
+text:
+  la: >-
+    Martyr Dei, qui únicum
+
+    Patris sequéndo Fílium,
+
+    Victis triúmphas hóstibus,
+
+    Victor fruens cæléstibus.
+
+
+    Tui precátus múnere
+
+    Nostrum reátum dílue,
+
+    Arcens mali contágium,
+
+    Vitæ rémovens tǽdium.
+
+
+    Solúta sunt jam víncula
+
+    Tui sacráti córporis:
+
+    Nos solve vinclis sǽculi,
+
+    Amóre Fílii Dei.
+
+
+    Deo Patri sit glória,
+
+    Ejúsque soli Fílio,
+
+    Cum Spíritu Paráclito,
+
+    Et nunc, et in perpétuum. Amen.
+  en: >-
+    Martyr of God, whose strength was steeled
+
+    To follow close God's only Son,
+
+    Well didst thou brave thy battlefield,
+
+    And well thy heavenly bliss was won!
+
+
+    Now join thy prayers with ours, who pray
+
+    That God may pardon us and bless;
+
+    For prayer keeps evil's plague away,
+
+    And draws from life its weariness.
+
+
+    Long, long ago, were loosed the chains
+
+    That held thy body once in thrall;
+
+    For us how many a bond remains!
+
+    O love of God release us all.
+
+
+    All praise to God the Father be,
+
+    All praise to thee, Eternal Son;
+
+    All praise, O Holy Ghost, to thee,
+
+    While never-ending ages run. Amen.
+status:
+  la: verified
+  en: verified