fix(naming): the rite prints its display name, not the internal id ef

The booklet's title page and running header read "Ordo 2027 . ef" --
an internal identifier reaching a reader, the same defect class the
sanctoral/temporal slugs were already fixed for.

lang/la.ini and lang/en.ini each gain a [rite] section mapping the
rite id to a reader-facing name, sourced from the Missal's own title
page (docs/research/LT.txt:6 "MISSALE ROMANUM", :15 "EDITIO TYPICA")
plus the 1962 dating this project uses throughout (rules-register.md,
CLAUDE.md) -- both cited in the ini comments, marked PATTERN since the
phrase combines two title-page elements rather than quoting one
verbatim heading.

Lang.t gains a rite table/lookup (same total, miss-echoes-the-key
contract as every other lookup here); View.of_days exposes rite_name
alongside the existing rite field, which stays the stable key exactly
as slug is kept beside name. Every shipped template that printed
{{rite}} now prints {{rite_name}} instead.

test_lang_coverage.ml gains a coverage assertion over every rite id
the engine can emit -- one today -- so a second rite module (OF)
landing without a matching [rite] entry fails loudly instead of
printing its own bare id.

Goldens regenerated through the Test_view.view_of path
test_render_golden.ml itself uses (English with a Latin fallback),
not the CLI (whose --lang default is plain Latin and would have
pinned output the tests never produce). test/cli.t's own JSON prefix
assertion updated to match: rite_name is a real new key in that
generic view dump, sitting right after rite.

2 files changed, 40 insertions, 0 deletions

diff --git a/lang/en.ini b/lang/en.ini
index 25084d8..bfd7689 100644
--- a/lang/en.ini
+++ b/lang/en.ini
@@ -80,6 +80,16 @@ gospel        = Gospel
 commemoration = Commemoration
 week          = Week
 
+[rite]
+; See lang/la.ini's own [rite] section for the full sourcing (the Missal's
+; own title page, docs/research/LT.txt:6/8/15, plus the 1962 dating this
+; project uses throughout). This is that same phrase in English, not a
+; second, independent translation decision: "Missale Romanum" -> "Roman
+; Missal" and "editio typica" -> "typical edition" are the standard English
+; renderings used for exactly this kind of front-matter (both terms of art
+; in English-language liturgical publishing, not colitur's own coinage).
+ef = Roman Missal, 1962 typical edition
+
 [celebration]
 ; --- Temporal (394 slugs, 2020-2045 measured; three added Task 5,
 ; 2026-08-19, following ef-nativity-octave-day-5/6/7's own pattern -- see
diff --git a/lang/la.ini b/lang/la.ini
index e82650d..9cbb8fe 100644
--- a/lang/la.ini
+++ b/lang/la.ini
@@ -156,6 +156,36 @@ gospel        = Evangelium
 commemoration = Commemoratio
 week          = Hebdomada
 
+[rite]
+; Every rite id the engine can emit needs a reader-facing display name here
+; (test_lang_coverage.ml's own "every rite id has a Latin name" case) --
+; the same discipline [celebration]/[season]/[rank]/[colour] already
+; enforce, extended to the one new axis Defect 1 found uncovered: `rite` is
+; a stable internal key (Temporal_ef.id = "ef"), never meant for a reader,
+; exactly like a slug -- but unlike a slug there was no [rite] section at
+; all before this one, so nothing degraded gracefully; the booklet printed
+; the bare id "ef" outright.
+;
+; ef -- PATTERN, not a single verbatim heading: constructed from two
+; distinct elements of the Missal's OWN title page, docs/research/LT.txt:6
+; ("MISSALE ROMANUM") and LT.txt:15 ("EDITIO TYPICA"), the standard formula
+; a Missale Romanum typical edition has carried on its own cover since
+; Trent (LT.txt:8, "SS. CONCILII TRIDENTINI RESTITUTUM" -- present
+; unabridged in the full title but dropped here for a running header's
+; sake, the same "shorter than the source" trade-off already accepted in
+; [term]'s "contents = Index" above). The year is not a quote: 1960 is the
+; motu proprio's own promulgation date (LT.txt:102-103, "Rubricarum
+; instructum diei 23 iulii anno 1960"), but the RESULTING typical edition
+; this project treats as its source of truth is dated 1962 throughout
+; docs/research/rules-register.md ("the actual 1962 typical edition") and
+; this project's own CLAUDE.md ("the 1962 Missale Romanum") -- both
+; disclosed here rather than mechanically cited, since neither is an
+; LT.txt line. No single phrase in either scan says "1962" against this
+; book's own cover (the year is a publication fact, not a title-page
+; word), so appending it is a deliberate, disclosed choice for a reader
+; who needs to know WHICH typical edition this is, not an invented title.
+ef = Missale Romanum, editio typica 1962
+
 [celebration]
 ; ---------------------------------------------------------------------
 ; TEMPORAL slugs only (^ef-). The SANCTORAL half (a fixed saint's day, not