fix(watchdog): refactored tcp recvMsg function, now the watchdog can be connected correctly

- Refactor TCP message reading to use ReadBytes and TrimSpace for better reliability
- Add connection success logging in main.go
- Update .gitignore to include logs.db-journal

main.go

@@ -105,11 +105,12 @@ func main() {
 	} else {
 		if !watchdog.Connect("127.0.0.1", config.Watchdog.Port) {
 			postLog.Error(fmt.Sprintf("Failed to connect to Watchdog at %s:%d", "127.0.0.1", config.Watchdog.Port))
+		} else {
+			postLog.Info(fmt.Sprintf("Connected to Watchdog at %s:%d", "127.0.0.1", config.Watchdog.Port))
+			is.watchdogConnected = true
 		}
 	}
 
-
-
 	addr := fmt.Sprintf("%s:%s", config.ListenAddr, config.ListenPort)
 	server := &http.Server{
 		Addr:         addr,