Added MQTT Logs, and improved OTA and NTP to Async

vesper/src/OTAManager/OTAManager.hpp

@@ -121,6 +121,11 @@ private:
     // NEW: Scheduled check timer
     TimerHandle_t _scheduledCheckTimer;
     static void scheduledCheckCallback(TimerHandle_t xTimer);
+
+    // Initial boot check timer (non-blocking delayed check)
+    TimerHandle_t _initialCheckTimer;
+    static void initialCheckCallback(TimerHandle_t xTimer);
+    void performInitialCheck();  // Async initial check after boot
     
     void setStatus(Status status, ErrorCode error = ErrorCode::NONE);
     void notifyProgress(size_t current, size_t total);