fix: Added LOTW badge for Lotw users colored depending on their last upload

internal/clublog/clublog.go

@@ -202,6 +202,23 @@ func (db *DB) Resolve(call string, date time.Time) (Exception, bool) {
 	return Exception{}, false
 }
 
+// HasException reports whether the callsign has ANY full-call exception (at any
+// date). Used to tell a genuinely date-sensitive call (G1T: Scotland only from
+// 2024) — where cty.dat's date-blind exact-call override is wrong for older
+// QSOs — from an ordinary call cty.dat handles fine.
+func (db *DB) HasException(call string) bool {
+	if db == nil {
+		return false
+	}
+	c := strings.ToUpper(strings.TrimSpace(call))
+	for _, key := range candidates(c) {
+		if len(db.exceptions[key]) > 0 {
+			return true
+		}
+	}
+	return false
+}
+
 // candidates yields the call and a version with one trailing affix removed.
 func candidates(c string) []string {
 	out := []string{c}