Add Te decet laus to Matins, drop Ps 129/50 from ferial Preces

Matins now sings "Te decet laus" (Psalterium/Common/Prayers.txt's [Te
decet]) immediately after the Te Deum on every 3-nocturn day, matching
Rule of Benedict ch. 11's close of Vigils. New common text
te-decet-laus.yml, wired into both matins.ts branches that render a Te
Deum; absent on ferial days along with it.

Also drops Psalm 129 (De profundis) from the Lauds ferial Preces and
Psalm 50 (Miserere) from the Vespers ferial Preces, per direct
instruction — both were embedded inline in the live-transcribed text.
Updated the affected fixture tests to key off a versicle that survives
the removal instead of the now-absent psalm text.

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

src/data/propers/common/lauds-preces-feriales.yml

@@ -15,6 +15,10 @@
 # conditional markup. The King/nation versicle pair, by contrast, *is*
 # rendered live despite the template's own rubric note suggesting
 # otherwise -- same live-over-template discipline.
+#
+# Psalm 129 (De profundis), which the live render embeds between the first
+# and second V/R blocks with its own Gloria Patri, is deliberately dropped
+# here per direct instruction (2026-08) -- not a transcription gap.
 id: lauds-preces-feriales
 text:
   la: |
@@ -51,18 +55,6 @@ text:
     V. Dómine, exáudi oratiónem meam.
     R. Et clamor meus ad te véniat.
 
-    Psalmus 129.
-    De profúndis clamávi ad te, Dómine: Dómine, exáudi vocem meam.
-    Fiant aures tuæ intendéntes, in vocem deprecatiónis meæ.
-    Si iniquitátes observáveris, Dómine: Dómine, quis sustinébit?
-    Quia apud te propitiátio est: et propter legem tuam sustínui te, Dómine.
-    Sustínuit ánima mea in verbo ejus: sperávit ánima mea in Dómino.
-    A custódia matutína usque ad noctem: speret Israël in Dómino.
-    Quia apud Dóminum misericórdia: et copiósa apud eum redémptio.
-    Et ipse rédimet Israël, ex ómnibus iniquitátibus ejus.
-    V. Glória Patri, et Fílio, et Spirítui Sancto.
-    R. Sicut erat in princípio, et nunc, et semper, et in sǽcula sæculórum. Amen.
-
     V. Dómine, Deus virtútum, convérte nos.
     R. Et osténde fáciem tuam, et salvi érimus.
     V. Exsúrge, Christe, ádjuva nos.
@@ -103,18 +95,6 @@ text:
     V. O Lord, hear my prayer.
     R. And let my cry come unto thee.
 
-    Psalm 129.
-    Out of the depths I have cried to thee, O Lord: Lord, hear my voice.
-    Let thy ears be attentive to the voice of my supplication.
-    If thou, O Lord, wilt mark iniquities: Lord, who shall stand it.
-    For with thee there is merciful forgiveness: and by reason of thy law, I have waited for thee, O Lord.
-    My soul hath relied on his word: my soul hath hoped in the Lord.
-    From the morning watch even until night, let Israel hope in the Lord.
-    Because with the Lord there is mercy: and with him plentiful redemption.
-    And he shall redeem Israel from all his iniquities.
-    V. Glory be to the Father, and to the Son, and to the Holy Ghost.
-    R. As it was in the beginning, is now, and ever shall be, world without end. Amen.
-
     V. Turn us again, O Lord, God of Hosts.
     R. Show us thy face, and we shall be whole.
     V. Arise, O Christ, and help us.