feat(naming): the language table

Maps strings to strings and nothing else -- no calendars, no dates, no
filesystem. That is what lets every command use it without the kernel
learning about presentation.

Every lookup is total, and a miss returns THE KEY rather than the empty
string. A partial translation is therefore usable from its first line,
and the fully-degraded case is exactly today's output (bare slugs) rather
than a blank page.

--raw is a real identity table, not a special case threaded through every
call site: one value the whole program passes around.

Reuses Overlay_ini's INI reader rather than growing a second one that
would drift in its comment, quoting and trimming rules; parse_sections is
exposed in the .mli for that, with no behaviour change.

Fixes one defect found while running the brief's own tests rather than
transcribing them blind: weekday's internal lookup key is an English
day-name word (month's is already the numeral string), so on a miss it
echoed that word instead of the documented numeral, breaking both the
0=Sunday convention and Lang.raw's own identity contract for weekday.
weekday/month now fall back to string_of_int n directly on a miss
instead of through get's generic echo-the-search-key path; month is
byte-identical since its key already equals string_of_int n.

1 files changed, 1 insertions, 0 deletions

diff --git a/test/test_colitur.ml b/test/test_colitur.ml
index 04bbdee..dd1274a 100644
--- a/test/test_colitur.ml
+++ b/test/test_colitur.ml
@@ -2,6 +2,7 @@
 let () =
   Alcotest.run "colitur"
     [ Test_date.suite; Test_computus.suite; Test_colour.suite; Test_slug.suite; Test_names.suite;
+      Test_lang.suite;
       Test_overlay.suite; Test_overlay_ini.suite; Test_temporal_ef.suite; Test_validate.suite; Test_precedence.suite;
       Test_calendar.suite; Test_precedence_ef.suite; Test_sanctoral_ef.suite; Test_rite_ef.suite;
       Test_differential.suite; Test_oracle.suite; Test_oracle.suite_2038; Test_oracle.suite_2035; Test_golden.suite;