feat(bible): resolve and display cross-chapter verse ranges (N:M-P:Q)

Lookup now detects a verse-tail range that crosses a chapter boundary
("M-P:Q", e.g. "30-28:7" in "Sirach 27:30-28:7") and fetches chapter N
from verse M to its end, any whole chapters between, and chapter P from
verse 1 through Q, instead of misreading the tail as a plain from-to
range and coming up empty. SplitRef expands the same pattern inside a
comma list so a trailing group after the jump (e.g. the ",8-10" in
"Malachi 1:14-2:2,8-10") resolves against the new current chapter.
FormatRef renders the range intact as "<sigla> N:M-P:Q" instead of
splitting off a fake new-chapter marker from the embedded "P:" and
mangling the display (previously "Sir 27:7").

No sentinel value is ever stored in a ref string; it only bounds an
internal verse-filter loop in Lookup.

1 files changed, 15 insertions, 0 deletions

diff --git a/internal/bible/booktable.go b/internal/bible/booktable.go
index 360f526..2d4b5b2 100644
--- a/internal/bible/booktable.go
+++ b/internal/bible/booktable.go
@@ -216,6 +216,21 @@ func (t *BookTable) FormatRef(dialect, canonicalRef string) string {
 		if g == "" {
 			continue
 		}
+		if cm := crossChapRangeRe.FindStringSubmatch(g); cm != nil {
+			// "M-P:Q": a range crossing a chapter boundary. Keep it intact --
+			// it already reads naturally as "<chap>:M-P:Q" -- rather than
+			// peeling a fake newChap off the "P:" embedded inside it.
+			switch {
+			case i == 0:
+				b.WriteString(chapVerse(dialect, chap, g))
+			case dialect == "pl":
+				b.WriteString(". " + g)
+			default:
+				b.WriteString("," + g)
+			}
+			chap = cm[2] // later groups (if any) belong to chapter P
+			continue
+		}
 		newChap := ""
 		if idx := strings.IndexByte(g, ':'); idx >= 0 {
 			newChap, g = g[:idx], g[idx+1:]