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, 8 insertions, 0 deletions

diff --git a/cmd/lectio-web/main.go b/cmd/lectio-web/main.go
index 327496a..683fabe 100644
--- a/cmd/lectio-web/main.go
+++ b/cmd/lectio-web/main.go
@@ -7,7 +7,9 @@ import (
 	"io"
 	"os"
 
+	"github.com/lukaszkasprzak/lectio/internal/bible"
 	"github.com/lukaszkasprzak/lectio/internal/config"
+	"github.com/lukaszkasprzak/lectio/internal/naming"
 	"github.com/lukaszkasprzak/lectio/internal/web"
 )
 
@@ -48,6 +50,12 @@ func run(args []string, stdout, stderr io.Writer) int {
 		fmt.Fprintln(stderr, "lectio-web:", err)
 		return 1
 	}
+	if dir, err := config.CorporaDir(); err == nil {
+		bible.SetUserCorporaDir(dir)
+	}
+	if dir, err := config.NamesDir(); err == nil {
+		naming.SetUserDir(dir)
+	}
 
 	var offline bool
 	var port int