Document Postponed Homelab Runner Design

[ptr727]

Summary

• Preserve the proposed homelab runner-selection and security design as a trackable artifact.
• Keep Copilot code review on GitHub-hosted infrastructure unless ARC is adopted.
• Record that implementation is postponed because the expected Actions savings do not justify the operating complexity.

Verification

• Full Python lint, type, test, spec, distribution, repository, and prose gates passed.
• python3 scripts/docker_lint.py completed all six linters successfully.
• The commit carries a verified signature.

Tracking

References #889. This pull request documents a postponed design and does not close the issue.

[Copilot]

Pull request overview

This pull request adds a postponed design document for issue #889, preserving the proposed homelab runner-selection and security boundary as a trackable artifact while explicitly keeping Copilot code review on GitHub-hosted infrastructure.

Changes:

• Add a new plan document describing the proposed runner-selection contract, trust checks, and canary rollout steps.
• Record that implementation is postponed due to ROI and operational complexity.

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[Copilot]

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated no new comments.

Suppressed comments (1)

docs/homelab-runner-selection-plan.md:9

• The Table of Contents block should follow the repo convention: add a ## Table of Contents <!-- omit from toc --> heading and let the Markdown All in One extension maintain the list (see .agents/skills/comment-and-doc-style/SKILL.md and existing docs like docs/token-efficiency-plan.md). The current bullet list appears as a hand-authored TOC without the standard heading.

- [Status](#status)
- [Decision Outcome](#decision-outcome)
- [Objective](#objective)
- [Non-Goals](#non-goals)
- [Primary Constraint: Copilot Code Review](#primary-constraint-copilot-code-review)

[ptr727]

Suppressed comments (1)

docs/homelab-runner-selection-plan.md:9 The Table of Contents block should follow the repo convention by adding the standard heading.

Fixed in 01b8206. Added ## Table of Contents <!-- omit from toc --> above the generated list. The list remains extension-generated and unchanged.

Review round: #890 (review)

[Copilot]

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated no new comments.