Sprint 30 Cl-1 acceptance fix. Sets DOTNET_INSTALL_DIR + NUGET_PACKAGES + 4
sibling env vars on both Deployments so non-root runner (UID 1001) can
write to /home/runner/.dotnet + /home/runner/.nuget without the
per-workflow patch that ~25 flipped Linux repos currently carry.
initContainer pre-creates + chowns the dirs to runner:runner so the
runtime mkdir-or-write succeeds on first restore. emptyDir mounted at
/home/runner; the .nuget/packages PVC (Common runner) wins at its nested
mount path so the persistent NuGet cache survives ephemeral pod restarts.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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