ci: add runner input to repo-standards reusable (default hosted)

[WomB0ComB0]

Adds a runner input to the reusable repo-standards workflow, defaulting to ubuntu-latest so every existing caller keeps its current behaviour. Callers opt in by passing runner: ${{ vars.USE_SELF_HOSTED == 'true' && 'self-hosted' || 'ubuntu-latest' }}, mirroring security-scan.yml.

Follow-up (blocked on this merge): point the calling repos' repo-standards jobs at the switch (bump its pin to the merged SHA + pass the input). Passing the input against the old pin would error until this lands.

Summary by CodeRabbit

• Chores
  • The repository standards workflow can now be configured to use a selected runner. Existing workflows continue to use the default runner unless a different one is specified.

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No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Advanced

Run ID: f5462d4a-3eb3-4ed9-9bb5-8c3ddcc1f59d

📥 Commits

Reviewing files that changed from the base of the PR and between f3af26a and 09f0098.

📒 Files selected for processing (1)

• .github/workflows/repo-standards.yml

Included review availability: Your plan provides up to 1 included review per hour; 0 remain after this review.

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📝 Walkthrough

Walkthrough

The reusable repo-standards workflow adds an optional runner input, defaulting to ubuntu-latest. The job uses the input value to select its runner.

Changes

Standards workflow runner

Layer / File(s)	Summary
Runner input and job selection .github/workflows/repo-standards.yml	The workflow defines an optional runner input with an ubuntu-latest default. The job uses that input instead of a fixed runner label.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Feature

Merge Risk: ⚪ Minimal · up to 09f00

Existing standards checks retain their runner selection. The change is ready to merge after normal checks.

Architecture Summary

Architecture risk: 🔵 Low · up to 09f00

The changed surface does not map to a changed system, dependency edge, entrypoint, or external dependency.

Changed systems: None identified.

Architecture concerns
No architecture-level concerns identified.

Review details

Before / after behavior

• observed — Modified behavior in .github/workflows/repo-standards.yml: The reusable workflow adds the optional runner input, defaulting to ubuntu-latest, and replaces the job’s fixed ubuntu-latest runner with ${{ inputs.runner }}.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: adding a runner input to the reusable repo-standards workflow with a hosted runner default.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Commit to this branch
• Create a new PR

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