fix: strip 'Chapter N - N: ' prefix from chapter titles in content menu

scraper/internal/writer/writer.go

@@ -281,6 +281,11 @@ func SplitChapterTitle(raw string) (title, date string) {
 		}
 	}
 
+	// Strip "Chapter N - N: " prefix (novelfire double-number format).
+	// Also handles "Chapter N: " (single number) and "Chapter N - Title" without colon.
+	chNumRe := regexp.MustCompile(`(?i)^chapter\s+\d+(?:\s*-\s*\d+)?\s*:\s*`)
+	raw = strings.TrimSpace(chNumRe.ReplaceAllString(raw, ""))
+
 	// Match a trailing relative date: "<n> <unit>[s] ago"
 	dateRe := regexp.MustCompile(`\s*(\d+\s+(?:second|minute|hour|day|week|month|year)s?\s+ago)\s*$`)
 	if m := dateRe.FindStringSubmatchIndex(raw); m != nil {