Use Storybook test builds for VRT and AAT

[Copilot]

Pass Storybook’s --test option through Turborepo for VRT, snapshot-update, and AAT builds. Local builds were 15% faster while retaining all 1,169 stories.

Changelog

New

• None.

Changed

• Build VRT and AAT Storybooks with --test.

Removed

• None.

Rollout strategy

• Patch release
• Minor release
• Major release; if selected, include a written rollout or migration plan
• None; CI-only change.

Testing & Reviewing

Build	Mean duration
Current	137.57s
--test	116.91s

• Two forced local runs per mode.
• Both modes produced the same 1,169 story entries.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 3a62b78

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[jonrohan]

Looks good, shaved off about a minute, but probably not a lot of slow plugins involved like dotcom

[Copilot]

Pull request overview

This PR updates the CI workflows used for VRT and AAT Storybook builds to pass Storybook’s --test flag through Turborepo, aiming to speed up these builds while keeping the same set of stories.

Changes:

• Pass --test to turbo run build:storybook in the VRT workflow.
• Pass --test to turbo run build:storybook in the VRT reports workflow.
• Pass --test to turbo run build:storybook in the AAT reports workflow.

Show a summary per file

File	Description
.github/workflows/vrt.yml	Adds --test passthrough to the Storybook build step used by the VRT snapshot-update path.
.github/workflows/vrt-reports.yml	Adds --test passthrough to the Storybook build step used by the VRT report runner.
.github/workflows/aat-reports.yml	Adds --test passthrough to the Storybook build step used by the AAT report runner.

Review details

• Files reviewed: 3/3 changed files
• Comments generated: 3
• Review effort level: Low

[joshblack]

@copilot apply review feedback

[Copilot]

@copilot apply review feedback

Applied the review feedback in 3a62b78. The workflow build steps now filter turbo run build:storybook to only the Storybooks each job serves, so --test no longer gets forwarded to the root docs build script.