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, 19 deletions

diff --git a/internal/render/render_test.go b/internal/render/render_test.go
index e2a26fc..00c8a85 100644
--- a/internal/render/render_test.go
+++ b/internal/render/render_test.go
@@ -25,7 +25,9 @@ func TestGatherBTDedup(t *testing.T) {
 }
 
 func TestGatherBible(t *testing.T) {
-	sec := liturgy.Section{Heading: "Ewangelia (J 20, 1. 11-18)"}
+	// Offline sections carry the English-canonical lookup reference in Ref; the
+	// display citation stays in the reader's sigla dialect.
+	sec := liturgy.Section{Heading: "Ewangelia", Citation: "J 20, 1. 11-18", Ref: "John 20:1,11-18"}
 	label, blocks := GatherVersion("wuj", sec, "new", "pl")
 	if !strings.Contains(label, "Wujek") {
 		t.Errorf("label = %q", label)
@@ -109,23 +111,6 @@ func TestGatherVersionNoReferenceLang(t *testing.T) {
 	}
 }
 
-// TestGatherVersionNoReferenceErrLang checks the "(no reference: ...)" block
-// (a citation that bible.ToEnglishRef fails to convert, e.g. an unrecognised
-// book) follows lang.
-func TestGatherVersionNoReferenceErrLang(t *testing.T) {
-	sec := liturgy.Section{Citation: "Xyz 1, 1-2"}
-
-	_, blocks := GatherVersion("wuj", sec, "new", "pl")
-	if len(blocks) == 0 || !strings.HasPrefix(blocks[0], "(brak odwołania: ") {
-		t.Errorf(`GatherVersion(..., "pl") blocks = %v, want prefix "(brak odwołania: "`, blocks)
-	}
-
-	_, blocks = GatherVersion("wuj", sec, "new", "en")
-	if len(blocks) == 0 || !strings.HasPrefix(blocks[0], "(no reference: ") {
-		t.Errorf(`GatherVersion(..., "en") blocks = %v, want prefix "(no reference: "`, blocks)
-	}
-}
-
 func TestOfflineVersions(t *testing.T) {
 	got := OfflineVersions([]string{"bt", "wuj", "vul"})
 	for _, v := range got {
@@ -136,7 +121,7 @@ func TestOfflineVersions(t *testing.T) {
 }
 
 func TestGatherVersesBible(t *testing.T) {
-	sec := liturgy.Section{Heading: "Ewangelia (J 20, 1. 11-18)"}
+	sec := liturgy.Section{Heading: "Ewangelia", Citation: "J 20, 1. 11-18", Ref: "John 20:1,11-18"}
 	label, verses, versified := GatherVerses("wuj", sec, "new", "pl")
 	if !strings.Contains(label, "Wujek") {
 		t.Errorf("label = %q", label)