chore(ci): run CI on GitHub-hosted runners, drop Blacksmith

[sebyx07]

Org rule (2026-10-07): private repos run CI on Ubicloud standard runners, public repos on GitHub-hosted runners; Blacksmith is retired.

Public repo → GitHub-hosted runners (free for public repos). Blacksmith is retired org-wide.

• ci.yml, deploy-docs.yml: blacksmith-{2,4}vcpu-ubuntu-2404 → ubuntu-latest.

The checks on this PR run on the new runners — they are the proof.

🤖 Generated with Claude Code

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^{Need help on this PR? Tag @codesmith-bot with what you need. Autofix is disabled.}

Summary by CodeRabbit

• Chores
  • Updated the environments used for automated checks and documentation publishing. The checks and publishing steps remain unchanged.
  • No end-user-facing features, behavior, or documentation content changed in this update.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

• Configuration used: Organization UI
• Review profile: CHILL
• Plan: Essentials
• Run ID: 30a86727-98e2-434d-9f6b-3545436dbbf4

📥 Commits

Reviewing files that changed from the base of the PR and between 036c308 and 6242d16.

📒 Files selected for processing (2)

• .github/workflows/ci.yml
• .github/workflows/deploy-docs.yml

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📜 Recent review details

⏰ Context from checks skipped due to timeout. (5)

• GitHub Check: 🧪 Unit Tests
• GitHub Check: 🎭 E2E Tests
• GitHub Check: ✅ Validate Demo
• GitHub Check: 🔍 Lint
• GitHub Check: 🔗 Integration Tests

🧰 Additional context used

🪛 zizmor (1.30.1)

.github/workflows/ci.yml

[warning] 1-171: overly broad permissions (excessive-permissions): default permissions used due to no permissions: block

(excessive-permissions)

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[warning] 14-34: overly broad permissions (excessive-permissions): default permissions used due to no permissions: block

(excessive-permissions)

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[warning] 36-55: overly broad permissions (excessive-permissions): default permissions used due to no permissions: block

(excessive-permissions)

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[warning] 57-96: overly broad permissions (excessive-permissions): default permissions used due to no permissions: block

(excessive-permissions)

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[warning] 98-138: overly broad permissions (excessive-permissions): default permissions used due to no permissions: block

(excessive-permissions)

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[warning] 140-162: overly broad permissions (excessive-permissions): default permissions used due to no permissions: block

(excessive-permissions)

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[warning] 164-171: overly broad permissions (excessive-permissions): default permissions used due to no permissions: block

(excessive-permissions)

🔇 Additional comments (2)

.github/workflows/ci.yml (1)

16-17: LGTM!

Also applies to: 38-38, 59-59, 100-100, 142-142, 166-166

.github/workflows/deploy-docs.yml (1)

18-19: LGTM!

Also applies to: 41-41

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📝 Walkthrough

Walkthrough

The CI workflow’s six jobs and the documentation deployment workflow’s build and deploy jobs now use ubuntu-latest. Job steps, timeouts, dependencies, and test configuration remain unchanged.

Changes

Workflow runner selection

Layer / File(s)	Summary
Update workflow runners .github/workflows/ci.yml, .github/workflows/deploy-docs.yml	All six CI jobs and both documentation deployment jobs now use ubuntu-latest instead of named Blacksmith runners.

Priority: ➖ Normal

Estimated code review effort: 1 (Trivial) | ~5 minutes

Change: Other

Merge Risk: ⚪ Minimal · up to 6242d

The CI and documentation workflows now select ubuntu-latest without other summarized behavior changes. No specific merge-blocking risk is evident from the supplied context.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: replacing Blacksmith runners with GitHub-hosted runners for CI and documentation deployment.
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.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Commit to this branch
• Create a new PR

• Autopilot · Keep fixing CodeRabbit findings and required CI, and resolving merge conflicts

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_{A rabbit checks the runner queue,
“ubuntu-latest” comes into view.
Six CI jobs hop along,
Docs build and deploy join the song.
The workflows start, and all is bright!}

_{Comment @coderabbitai help to get the list of available commands.}