LocalAI resolves meta backends from the GPU vendor it reads out of sysfs,
which is the host's card even with no driver installed in the container,
so llama-cpp became cuda12-llama-cpp and never started (#17908). Force
the default capability unless a CUDA, ROCm or Level Zero runtime is
present; update adds the pin to existing installs.
* Add localai (ct)
* Refactor localai.sh to clean up comments and exports
Removed comments regarding ARM64 support and clarified install script export variables.
* Refactor variable assignments and clean up comments
Rearranged variable assignments and removed comments about SQLite and PostgreSQL.
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Co-authored-by: push-app-to-main[bot] <203845782+push-app-to-main[bot]@users.noreply.github.com>
Co-authored-by: CanbiZ (MickLesk) <47820557+MickLesk@users.noreply.github.com>