First runs no longer fail when the gateway and model-capability cache folders don't exist yet.
What's wrong with this entry?
Both caches now create their folder (recursively) before writing, so a first run on a machine without the directory no longer fails on the write.
- If the directory cannot be created, the writer logs and gives up rather than attempting the write; gateway discovery logs "[gatewayDiscovery] cache folder could not be made".
- Both writers also publish the file in place.
[gatewayDiscovery] cache folder could not be made
Strings lifted out of the shipped bundle, so the claim above can be checked against them.