Switch CI jobs to container: image: overrides so jobs run inside official
SDK containers (dotnet/sdk:10.0, node:20-alpine) instead of the bare
runner container. This bypasses blocked CDN downloads for dotnet/node.
Deploy job stays on self-hosted:host where Docker CLI is available.
Update workflow comments to explain the required runner label config:
ubuntu-latest:docker://node:20-alpine (CI jobs)
self-hosted:host (deploy)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
soroush.asadi
6c868f5f30