Prime: real content (psalms, Martyrology, Regula) and ordo corrections

Pulls in verified content from Divinum Officium rather than placeholders:
17 psalms (2, 6, 7-19, 118, 129), 365 days of the Martyrology, and the full
121-reading Regula cycle, plus the Athanasian Creed.

Ordo corrections driven by review against the real engine output:
- Capitulum and Preces now pick a Sunday/feast vs. ferial form
  (calendar/isSundayOrFeast); ferial Preces said every ferial day by choice.
- Chapter responsory, hymn doxology, and the opening versicle's
  Alleluia/Laus tibi all vary by season via a shared resolver
  (hours/seasonal-propers.ts).
- Real Roman Kalends/Nones/Ides Latin dating (calendar/roman-date.ts,
  verified against 363/365 real Martyrology headings) plus the historical
  "bis sextus" Feb 29 handling, and the Martyrology's Luna (moon-day)
  heading (a ported Golden-Number calculation).
- Fixed responsory structure (was missing its initial full repeat),
  weekday psalm antiphons (opening as incipit-or-full by rank, full
  repeat after the psalms/Creed as its own part, "*" chant mark kept),
  scripture citations on the capitulum/lectio brevis, and V./R. markers
  switched from Unicode symbols to plain text for reliable font rendering.
- Dropped Pretiosa and the dead-commemoration psalm (129) for time;
  trimmed section headings down to the ones that are actually named
  things (Preces, Chapter Office, etc. no longer relabel connective text).

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

src/data/regula/02-06.yml

@@ -0,0 +1,13 @@
+# Verified against Divinum Officium (Latin Regula, English translation).
+canonicalDate: "02-06"
+label:
+  la: "Cápite 7 Régulæ Sancti Patri Nostri Benedícti: De humilitáte"
+  en: "The Rule of our Holy Father Benedict. Chapter 7: Concerning Humility. Continued."
+text:
+  la: |
+    Nonus humilitátis gradus est, si linguam ad loquéndum prohíbeat mónachus et taciturnitátem habens, usque ad interrogatiónem non loquátur, monstránte Scriptúra quia in multilóquio non effúgitur peccátum, et quia vir linguósus non dirígitur super terram.
+  en: |
+    The ninth step in humility is if a monk restrain his tongue from speaking so as to keep silence and not speak till questioned, the Scripture showing that: “In much speaking sin may not be avoided”; and that “the talkative man will not be guided aright in the world.”
+status:
+  la: verified
+  en: verified