Add bar (Baruch), found in the Missa propers, not the Horas

User pointed to missa/Latin/Tempora/Quad6-6.txt -- the Mass propers, a
directory tree this whole responsory search had never once checked
(everything so far searched horas/, the Divine Office proper). The
Easter Vigil Mass's own fourth prophecy ([Proph_Baruch3], Bar 3:9-38,
"Audi, Israel, mandata vitae") is genuine, real, accented liturgical
Latin -- just never part of Matins at all.

Composed bar the same way as deut/rom: built from that prophecy's own
climactic close ("Hic est Deus noster... Post haec in terris visus
est, et cum hominibus conversatus est" -- read at the Vigil because
early exegetes saw "seen upon earth, and conversed with men" as a
prophecy of the Incarnation).

Extended the Missa check to the other 6 already-absent books too --
genuinely zero citations anywhere. Ezra turned up one thin, ambiguous
Missa Introit citation that doesn't match its own cited verse; left
unseeded rather than force it.

65 of 72 bible-plan books now seeded -- this closes the per-book
responsory pool. npm test (2029 passed) and tsc --noEmit pass;
live-verified through getBiblePlanReadings. Canonical-key audit
re-run, clean.

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

src/data/hours/matins-responsories-by-book.yml

@@ -4,7 +4,7 @@
 # chapter/verse historically, so a book-level match is the right
 # granularity, not a gap to fill in later with exact citations.
 #
-# Seeded, not a full pool — 64 of the 72 books actually used in the user's
+# Seeded, not a full pool — 65 of the 72 books actually used in the user's
 # own bible-plan (data/hours/bible-plan/*.yml), the rest deferred bulk
 # content (see TODO.md). Cycled in order
 # per-day when a Nocturn-1 reading's book has more than one candidate
@@ -1236,3 +1236,22 @@ rom:
     v:
       la: "Hora est jam nos de somno súrgere: nunc enim própior est nostra salus, quam cum credídimus."
       en: "It is now the hour for us to rise from sleep, for now our salvation is nearer than when we believed."
+
+# `bar` (Baruch) — composed, not transcribed, same approach as `deut`/`rom`
+# above: Baruch has no Matins responsory anywhere in the Office (Tempora
+# or Sancti), but genuine liturgical Latin exists in a different part of
+# the Office altogether — the Easter Vigil *Mass*'s own fourth prophecy
+# (missa/Latin/Tempora/Quad6-6.txt's `[Proph_Baruch3]`, Bar 3:9-38, "Audi,
+# Israël, mandáta vitæ") — user-found (2026-09-05: "it's in the misa
+# section, not the horas section"). Built from that prophecy's own
+# climactic close ("Hic est Deus noster... Post hæc in terris visus est,
+# et cum homínibus conversátus est" — read at the Vigil precisely because
+# early exegetes saw "seen upon earth, and conversed with men" as a
+# prophecy of the Incarnation), genuine accented text, not invented.
+bar:
+  - r:
+      la: "Hic est Deus noster: * Et non æstimábitur álius advérsus eum."
+      en: "This is our God: * And there shall no other be accounted of in comparison of him."
+    v:
+      la: "Post hæc in terris visus est, et cum homínibus conversátus est."
+      en: "Afterwards he was seen upon earth, and conversed with men."