Ensure graph can do clean restart after data model change

[surchs]

The problem:

• I have a full stack running
• my API/Neurobagel tools have updated and have a new data model
• I put the updated data .jsonld files in my "upload to graph" folder
• I restart my full stack

🤯 -> if I forget to wipe the data in the graph before restarting, I now have both triples for the new and the old data model in the graph and if I'm lucky, they will interact in stupid and hard to understand ways that breaks things

Context:
Hhm, I see your point. But I think we should address the issue with graph incompatibilities after restart quickly in a separate issue. I'm happy to make a complete database wipe everytime we restart the full stack - and then wait 10 minutes for everything to come back to life - if that means I don't have to remember special combos of services I need to shut down/keep alive or introduce hard to debug problems.

For now I'll add a TODO flag here.

Originally posted by @surchs in neurobagel/documentation#189 (comment)

[surchs]

completed with the current docs