Lab 10: Cloud: GHCR release workflow + Hugging Face Spaces deploy

[danielpancake]

Goal

Publish QuickNotes to GHCR via a tag-triggered release workflow and deploy it to Hugging Face Spaces at a public URL.

Changes

• Add .github/workflows/release.yml — v* tag builds app/ and pushes :<version> + :latest to ghcr.io/danielpancake/devops-intro/quicknotes; packages: write only; all actions SHA-pinned
• Add cloud/ — HF Space Dockerfile (pulls the immutable ghcr image) + README.md (Docker SDK, app_port: 8080)
• Import the Lab 9 hardened container as the baseline
• submissions/lab10.md with evidence + design questions a–i

Testing

• Release run green; image public and pullable unauthenticated (docker pull works, digest sha256:5b456746…b01bbf)
• HF Space serves /health and /notes (200); warm p50 ≈ 0.57 s; cold start measured after idle-sleep

Checklist

• Title is a clear sentence (≤ 70 chars)
• Commits are signed (git log --show-signature)
• submissions/lab10.md updated