fix: improve ram estimation (#7603)

* fix: default to 10seconds of watchdog if runtime setting is malformed

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix: use gosigar for RAM estimation

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

core/application/startup.go

@@ -278,6 +278,7 @@ func loadRuntimeSettingsFromFile(options *config.ApplicationConfig) {
 				options.WatchDogInterval = dur
 			} else {
 				log.Warn().Err(err).Str("interval", *settings.WatchdogInterval).Msg("invalid watchdog interval in runtime_settings.json")
+				options.WatchDogInterval = 10 * time.Second
 			}
 		}
 	}