Wire seasonal hymn-doxology into every plain-default Lauds hymn

Lauds' Monastic source never carries the "*" substitution marker anywhere
(audited), so this is purely the same deliberate broadening as the Vespers
commit: every plain-default hymn (Sunday, Mon-Sat, Advent, Lent,
Passiontide, Paschaltide) now routes its closing doxology through
getHymnDoxologyId/appendDoxology instead of a fixed ending, split into
matching per-annum companion files that reproduce the original text
whenever no season/feast override applies.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AGjUyhUZJaSjiniEmnLdak

src/data/propers/common/lauds-hymn-lent.yml

@@ -25,12 +25,6 @@ text:
     In qua reflórent ómnia:
     Lætémur in hac ad tuam
     Per hanc redúcti grátiam.
-
-    Te rerum univérsitas,
-    Clemens, adóret, Trínitas,
-    Et nos novi per véniam,
-    Novum canámus cánticum.
-    Amen.
   en: |
     Jesu, salvation's Sun Divine,
     Within our inmost bosoms shine,
@@ -51,12 +45,6 @@ text:
     The days of joy for them that mourn;
     May we of their indulgence share,
     And bless the God that grants our prayer.
-
-    May heaven and earth aloud proclaim
-    The Trinity's almighty fame;
-    And we, restored to grace, rejoice
-    In newness both of heart and voice.
-    Amen.
 status:
   la: draft
   en: draft