Adds a single source of truth for which hosts run cortex vs neuron
and which CUDA compute-capability flavour each neuron host needs:
cortex : hanzalova.internal
neurons :
beast → helexa-neuron-blackwell (2x RTX 5090, sm_120)
benjy → helexa-neuron-ada (RTX 4090, sm_89)
quadbrat → helexa-neuron-ampere (RTX 3060, sm_86)
script/deploy.sh (gitignored, local-only) is updated locally to read
hosts and flavours from this manifest and dnf install the correct
helexa-neuron-<flavour> package per host. Using
'dnf install --refresh --allowerasing' lets it swap out the previous
bare helexa-neuron RPM or a different flavour without manual
intervention; the spec Conflicts: clauses keep at most one flavour
resident.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
