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/01-02.yml

@@ -0,0 +1,13 @@
+# Verified against Divinum Officium (Latin Regula, English translation).
+canonicalDate: "01-02"
+label:
+  la: "Prólogo Sancti Patri Nostri Benedícti in Régulam suam."
+  en: "Prologue to the Rule of our Holy Father Benedict. Continued"
+text:
+  la: |
+    Exurgámus ergo tandem aliquándo excitánte nos Scriptúra ac dicénte: Hora est jam nos de somno súrgere, et apértis óculis nostris ad deíficum lumen adtónitis áuribus audiámus divína cotídie clamans quid nos ádmonet vox dicens: Hódie si vocem ejus audiéritis, nolíte obduráre corda vestra. Et íterum: Qui habet aures audiéndi áudiat, quid Spíritus dicat ecclésiis. Et quid dicit? Veníte, fílii, audíte me; timórem Dei docébo vos. Cúrrite dum lumen vitæ habétis, ne ténebræ mortis vos conprehéndant.
+  en: |
+    Let us therefore now at length rise up as the Scripture incites us when it says: “Now is the hour for us to arise from sleep.” And with our eyes open to the divine light, let us with astonished ears listen to the admonition of God’s voice daily crying out and saying: “Today if ye will hear His voice, harden not your hearts.” And again: “He who has the hearing ear, let him hear what the Spirit announces to the churches.” And what does the Spirit say? “Come, children, listen to me: I will teach you the fear of the Lord. Run while ye have the light of life, that the shades of death envelop you not.”
+status:
+  la: verified
+  en: verified