Prepend R. to nocturn-readings responsories missing their opening marker

All 53 nocturn-readings files with a responsory field started straight
into the text with no leading R., unlike octave-readings' own R./V.
convention. Fixed in content per direct instruction (not injected at
render time), matching each file's own existing plain V./R. style rather
than switching to octave-readings' R./V. glyphs.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EWzE3kaSZCs79fPBrrE1aF

src/data/propers/nocturn-readings/st-monica.yml

@@ -94,8 +94,8 @@ readings:
       la: "In illo témpore: Ibat Jesus in civitátem, quæ vocátur Naim: et ibant cum eo discípuli ejus: et turba copiósa. Cum autem appropinquáret portæ civitátis, ecce, defúnctus efferebátur fílius únicus matris suæ: et hæc vídua erat, et turba civitátis multa cum illa. Quam cum vidísset Dóminus, misericórdia motus super eam, dixit illi: Noli flere. Et accéssit et tétigit lóculum. Hi autem, qui portábant, stetérunt. Et ait: Adoléscens, tibi dico, surge. Et resédit, qui erat mórtuus, et cœpit loqui. Et dedit illum matri suæ. Accépit autem omnes timor: et magnificábant Deum, dicéntes: Quia Prophéta magnus surréxit in nobis: et quia Deus visitávit plebem suam."
       en: "At that time, Jesus went to a town called Naim; and His disciples and a large crowd went with Him. And as He drew near the gate of the town, behold, a dead man was being carried out, the only son of his mother, and she was a widow; and a large gathering from the town was with her. And the Lord, seeing her, had compassion on her, and said to her, Do not weep. And He went up and touched the stretcher; and the bearers stood still. And He said, Young man, I say to you, arise. And he who was dead, sat up, and began to speak. And He gave him to his mother. But fear seized upon all, and they began to glorify God, saying, A great prophet has risen among us, and God has visited His people."
     responsory:
-      la: "Quis mihi tríbuat, ut in inférno prótegas me et abscóndas me, donec pertránseat furor tuus, Dómine, nisi tu, qui solus es Deus? * Et constítuas mihi tempus, in quo recordéris mei?\nV. Numquid sicut dies hóminis dies tui, ut quæras iniquitátem meam; cum sit nemo, qui de manu tua possit erúere.\nR. Et constítuas mihi tempus, in quo recordéris mei?"
-      en: "O that Thou wouldest hide me in the grave; that Thou wouldest keep me secret, until thy wrath be past, even thine, O Lord, Thou That alone art God; * That Thou wouldest appoint me a set time, and remember me!\nV. Are thy days as the days of man, that Thou inquirest after mine iniquity, and there is none that can deliver out of thine hand.\nR. That Thou wouldest appoint me a set time, and remember me!"
+      la: "R. Quis mihi tríbuat, ut in inférno prótegas me et abscóndas me, donec pertránseat furor tuus, Dómine, nisi tu, qui solus es Deus? * Et constítuas mihi tempus, in quo recordéris mei?\nV. Numquid sicut dies hóminis dies tui, ut quæras iniquitátem meam; cum sit nemo, qui de manu tua possit erúere.\nR. Et constítuas mihi tempus, in quo recordéris mei?"
+      en: "R. O that Thou wouldest hide me in the grave; that Thou wouldest keep me secret, until thy wrath be past, even thine, O Lord, Thou That alone art God; * That Thou wouldest appoint me a set time, and remember me!\nV. Are thy days as the days of man, that Thou inquirest after mine iniquity, and there is none that can deliver out of thine hand.\nR. That Thou wouldest appoint me a set time, and remember me!"
     status: { la: verified, en: verified }
 
   - nocturn: 3
@@ -160,6 +160,6 @@ readings:
         which saw the works, and marvelled, and understood them, and profited by them. And it is as
         these last that we ought to be in the school of Christ.
     responsory:
-      la: "Numquid supplántat judícium? aut Omnípotens subvértit quod iustum est? † Líbera me, Dómine, et pone me juxta te: * Et cujúsvis manus pugnet contra me.\nV. Apprehénde arma et scutum, et exsúrge in adjutórium mihi.\nR. Et cujúsvis manus pugnet contra me."
-      en: "Does God pervert judgment, or does the Almighty overthrow that which is just? Deliver me, O Lord, and set me beside you, * And let any man's hand fight against me.\nV. Take hold of arms and shield: and rise up to help me.\nR. And let any man's hand fight against me."
+      la: "R. Numquid supplántat judícium? aut Omnípotens subvértit quod iustum est? † Líbera me, Dómine, et pone me juxta te: * Et cujúsvis manus pugnet contra me.\nV. Apprehénde arma et scutum, et exsúrge in adjutórium mihi.\nR. Et cujúsvis manus pugnet contra me."
+      en: "R. Does God pervert judgment, or does the Almighty overthrow that which is just? Deliver me, O Lord, and set me beside you, * And let any man's hand fight against me.\nV. Take hold of arms and shield: and rise up to help me.\nR. And let any man's hand fight against me."
     status: { la: verified, en: verified }