ESP32 wallet RPC, browser wallet provider, and side panel

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/handlers/auth/Net_StartEspPairing_Handler.java

@@ -74,7 +74,8 @@ public class Net_StartEspPairing_Handler implements JsonMessageHandler {
 
         long now = System.currentTimeMillis();
         EspPairingRequestsDAO.getInstance().expirePending(now);
-        if (settings.getBlockedUntilMs() > now) {
+        long blockedUntilMs = settings == null ? 0L : settings.getBlockedUntilMs();
+        if (blockedUntilMs > now) {
             return NetExceptionResponseFactory.error(req, EspPairingSupport.STATUS_PAIRING_RATE_LIMIT, "PAIRING_RATE_LIMITED", "Временная блокировка pairing по числу неудачных попыток");
         }
         int recentAttempts = EspPairingRequestsDAO.getInstance().countRecentByLoginAndStatuses(