naming: localise liturgical day names in any language

Add internal/naming, which renders temporal day names and celebration
display names from the calendar engine's slugs in any language. English is
the built-in baseline; a language is data -- an embedded lang/<code>.ini
(pl shipped) and/or a user file at <config dir>/names/<code>.ini that
overrides it key by key. Names compose from a small vocabulary plus
per-language format templates, so word order and grammatical case can
differ (e.g. Polish genitive "3. Niedziela Okresu Zwykłego"); any string a
language omits falls back to English.

- Move day-name generation out of calendar (calendar.HumanizeSlug removed,
  calendar stays a pure engine) into naming.DayName; the English golden
  cases carry over verbatim.
- naming.CelebrationName unifies the three duplicated resolvers
  (cli/readings/calfeed): name.<lang> -> English -> Latin -> humanized slug.
  Saint names stay in the calendar data (name.<lang>), overridable via
  calendar layers.
- config: ui_language now accepts any code (lower-cased, not clamped to
  en/pl) so names/<code>.ini applies; UI chrome still resolves en/pl and
  falls back to English. Add NamesDir(); wire naming.SetUserDir (and the
  previously unwired bible.SetUserCorporaDir) in the TUI and web mains too,
  so external corpora and name files work across all three binaries.

1 files changed, 0 insertions, 27 deletions

diff --git a/internal/calendar/names_test.go b/internal/calendar/names_test.go
deleted file mode 100644
index 217f481..0000000
--- a/internal/calendar/names_test.go
+++ /dev/null
@@ -1,27 +0,0 @@
-package calendar
-
-import "testing"
-
-func TestHumanizeSlug(t *testing.T) {
-	cases := map[string]string{
-		"ordinary-sunday-11":            "11th Sunday in Ordinary Time",
-		"ordinary-11-tue":               "Tuesday of the 11th Week in Ordinary Time",
-		"advent-2-mon":                  "Monday of the 2nd Week of Advent",
-		"advent-dec-17":                 "December 17",
-		"lent-after-ashes-wed":          "Ash Wednesday",
-		"lent-after-ashes-thu":          "Thursday after Ash Wednesday",
-		"triduum-fri":                   "Good Friday",
-		"easter-octave-mon":             "Monday in the Octave of Easter",
-		"christmas-jan-2":               "January 2",
-		"christmas-after-epiphany-mon":  "Monday after the Epiphany",
-		"trinity-sunday":                "The Most Holy Trinity",
-		"ef-time-after-pentecost-4-tue": "Tuesday of the 4th Week after Pentecost",
-		"ef-passiontide-0-thursday":     "Thursday of Passion Week",
-		"ef-september-ember-wed":        "Ember Wednesday of September",
-	}
-	for slug, want := range cases {
-		if got := HumanizeSlug(slug); got != want {
-			t.Errorf("HumanizeSlug(%q) = %q, want %q", slug, got, want)
-		}
-	}
-}