feat(caldata,cli): embed 1962 EF calendar + form-aware Stack; --liturgy computes EF

caldata.Tridentine()/Base(form); Stack(form,dir,use); runLiturgy drops the EF
guard and uses the form's base; rankLabel shows I-IV class; display omits OF
cycles + strips ef- slug prefix for EF.

1 files changed, 14 insertions, 2 deletions

diff --git a/internal/caldata/stack_test.go b/internal/caldata/stack_test.go
index b9d5bfb..3c1cf3f 100644
--- a/internal/caldata/stack_test.go
+++ b/internal/caldata/stack_test.go
@@ -13,7 +13,7 @@ func TestStack(t *testing.T) {
 	os.WriteFile(filepath.Join(dir, "krakow.ini"),
 		[]byte("[layer]\nid = krakow\ntype = diocesan\n\n[st-stanislaus]\ndate = 05-08\nrank = solemnity\nclass = saint\ncolour = red\nname.pl = Św. Stanisława\n"), 0o644)
 
-	layers, errs := Stack(dir, []string{"poland", "krakow"})
+	layers, errs := Stack("new", dir, []string{"poland", "krakow"})
 	if len(errs) != 0 {
 		t.Fatalf("unexpected errors: %v", errs)
 	}
@@ -32,7 +32,7 @@ func TestStackMissingLayerSkips(t *testing.T) {
 	dir := t.TempDir()
 	os.WriteFile(filepath.Join(dir, "good.ini"),
 		[]byte("[layer]\nid = good\n\n[x]\ndate = 01-02\nrank = memorial\nname.en = X\n"), 0o644)
-	layers, errs := Stack(dir, []string{"good", "missing"})
+	layers, errs := Stack("new", dir, []string{"good", "missing"})
 	if len(errs) != 1 {
 		t.Fatalf("want 1 error for the missing layer, got %v", errs)
 	}
@@ -54,3 +54,15 @@ func TestLoadLayerDefaultsIDToStem(t *testing.T) {
 		t.Errorf("ID = %q, want myparish (from stem)", l.ID)
 	}
 }
+
+func TestStackFormBase(t *testing.T) {
+	dir := t.TempDir()
+	efLayers, _ := Stack("old", dir, nil)
+	if efLayers[0].ID != "tridentine" {
+		t.Errorf("EF base = %q want tridentine", efLayers[0].ID)
+	}
+	ofLayers, _ := Stack("new", dir, nil)
+	if ofLayers[0].ID != "universal" {
+		t.Errorf("OF base = %q want universal", ofLayers[0].ID)
+	}
+}