fix(citation): close the final review's blocking findings

The branch was RED and reported green. `dune test` exited 1: test/cli.t
pinned the pre-fix output `kings_1 19:3-8`, which the previous commit had
already fixed to `1 Reg 19:3-8`. The gate command piped dune through
`tail`, so it reported tail's exit status, and cram prints its diff
BEFORE the alcotest summary, so the two lines shown were the passing
ones. Verify with `dune test; echo $?`, never through a pipe.

A style file's own `book` key was unreachable. sigla_book resolved
against a hardcoded "abbr" and the result was applied unconditionally,
so the documented `[sigla] book = full` could never win. Render gains
book_string, and the style's own value is now the default that a flag or
config overrides. The unit test pinned style_of_fields correctly while
the wiring defeated it.

`lang --check` filtered the reference set to the celebration prefix, so
a file with no [bible] section at all reported a clean bill of health --
contradicting both the reason the keys change was made and lang.ml's own
comment. It now reports missing book names too.

The token test missed a FOURTH citation-bearing file: adjustments.sexp
writes citations as `Set_citation`, not `(reference ...)`. Its 16
citations all parse, so nothing was broken, but nothing was checking.
The first attempt at this fix read the file and extracted NOTHING -- the
marker stopped before the opening quote, so every payload was the part
label -- which is recorded in the code rather than left as a trap.

Also: colitur-config(5) claimed a trailing period the data does not
carry, and two la.ini scan quotes silently corrected OCR damage
("Ionae 3, I - I O", "Epistolse") while presenting themselves as
verbatim. Both are now marked as corrections.

1 files changed, 11 insertions, 2 deletions

diff --git a/lang/la.ini b/lang/la.ini
index 3783482..821acff 100644
--- a/lang/la.ini
+++ b/lang/la.ini
@@ -1997,7 +1997,12 @@ jonas.full             = Ionas Propheta
 ; scan1.txt:11021 "Lectio Ionae Prophetae." -- CORRECTS the sourcing note
 ; (genitive "Ionae" -> nominative "Ionas").
 jonas.abbr             = Ionae
-; scan1.txt:11022 "Ionae 3, 1-10", same page as the .full citation -- the
+; scan1.txt:11022 -- OCR-NORMALISED, not verbatim: the line actually reads
+; "Ionae 3, I - I O", the scanner having read the digits 1 and 0 as capital
+; letter I and letter O. The reading is unambiguous in context (Jonas 3 has
+; 10 verses and the pericope below runs to verse 10), but the quote is a
+; correction, not a transcription, and is marked so rather than presented as
+; if the page said it. Same page as the .full citation -- the
 ; Missal's own locator uses the genitive form directly, unabbreviated.
 malachi.full           = Malachias Propheta
 ; scan1.txt:26697 "Lectio Malachiae Prophetae." -- CORRECTS the sourcing
@@ -2101,7 +2106,11 @@ hebrews.abbr           = Hebr
 
 ; --- Catholic epistles --------------------------------------------------
 james.full             = Epistola beati Iacobi Apostoli
-; scan1.txt:20348 "Lectio Epistolae beati Iacobi Apostoli.", also
+; scan1.txt:20348 -- OCR-NORMALISED, not verbatim: the line reads
+; "Epistolse beati Iacobi Apostoli", the scanner having read the ligature ae
+; as "se". The correction is certain (no Latin word "Epistolse" exists, and
+; the same phrase is clean elsewhere), but it is a correction and is marked
+; as one. Also
 ; 20432/20509/34828/38918/40963/41197/45872/49193 -- no "ad X" destination
 ; to shorten to, so the attribution stays; see the header's own note on this
 ; pattern.