You can check https://experienceleague.adobe.com/docs/experience-manager-65/administering/operations/rich-text-editor.html?lang=en for rte.

Change the log level to debug.Also, refer https://experienceleague.adobe.com/docs/experience-manager-dispatcher/using/configuring/dispatcher-configuration.html?lang=en for dispatcher config.

Which AEM version are you using?

If the content has been modified in the destination environment, it will be overwritten by content in the source if the paths are the same. Otherwise, content from the source will be merged with the content in the destination.

You can download 8.0.5 version from https://github.com/icfnext/aem-groovy-console/releases

Checkout https://experienceleague.adobe.com/docs/experience-manager-65/administering/integration/third-party-services.html?lang=en  

You can use AWS S3 Glacier:  https://aws.amazon.com/s3/storage-classes/glacier/ 

For AEM 6.1, 8.x.x tags can be checked out from https://github.com/icfnext/aem-groovy-console and built directly from the source (e.g. mvn install).

try running below command:npm cache clean -f  

https://experienceleague.adobe.com/docs/experience-manager-65/developing/components/components-content-fragments.html?lang=en will be helpful.