Enhance SaveEvent logic to handle older event rejection with error reporting, validate timestamps in parameterized replaceable events, and improve HandleEvent error handling for blocked events.

app/handle-event.go

@@ -129,7 +129,17 @@ func (l *Listener) HandleEvent(msg []byte) (err error) {
 	}
 	// store the event
 	log.I.F("saving event %0x, %s", env.E.ID, env.E.Serialize())
-	if _, _, err = l.SaveEvent(l.Ctx, env.E); chk.E(err) {
+	if _, _, err = l.SaveEvent(l.Ctx, env.E); err != nil {
+		if strings.HasPrefix(err.Error(), "blocked:") {
+			errStr := err.Error()[len("blocked: "):len(err.Error())]
+			if err = Ok.Error(
+				l, env, errStr,
+			); chk.E(err) {
+				return
+			}
+			return
+		}
+		chk.E(err)
 		return
 	}
 	// Send a success response storing