feat(readings): compute the daily view offline (OF + EF)

Route readings.Load through the embedded calendar engine and lectionary
data instead of the niedziela/missalemeum scrapers. The daily view now
computes each day (calendar.Compute + caldata.Readings) and renders text
from the public-domain corpora, with citations resolved per corpus.

- bible.OFRef: normalise an English-canonical OF citation (drop sub-verse
  letters, ";" -> ",") and renumber Psalms for the target Psalter
  (Hebrew->Vulgate chapter for vul/grb/wuj; DRB title-fold verses for drb).
- liturgy.Section gains Ref (English-canonical lookup ref) alongside
  Citation (sigla-dialect display); the loader fills both, resolveRef uses
  Ref, headings/citation command show Citation.
- EffectiveVersions always drops "bt" (no offline corpus); the single
  daily version defaults to vernacularVersion (reading corpus else Latin).

Scraper packages remain in the tree, unreferenced, pending removal.

1 files changed, 4 insertions, 4 deletions

diff --git a/internal/tui/tui_test.go b/internal/tui/tui_test.go
index f99c4ac..d4aa855 100644
--- a/internal/tui/tui_test.go
+++ b/internal/tui/tui_test.go
@@ -12,16 +12,16 @@ import (
 )
 
 func TestVersionCycle(t *testing.T) {
-	m := New(config.Config{Versions: []string{"bt", "wuj", "vul"}, DefaultVersion: "bt"}, "", "")
-	if m.version() != "bt" {
+	m := New(config.Config{Versions: []string{"wuj", "vul", "grb"}, DefaultVersion: "wuj"}, "", "")
+	if m.version() != "wuj" {
 		t.Fatalf("start = %q", m.version())
 	}
 	m = m.cycleVersion(+1)
-	if m.version() != "wuj" {
+	if m.version() != "vul" {
 		t.Errorf("after tab = %q", m.version())
 	}
 	m = m.cycleVersion(-1)
-	if m.version() != "bt" {
+	if m.version() != "wuj" {
 		t.Errorf("after shift-tab = %q", m.version())
 	}
 }