refactor(test): standardize log capture on useCaptureLog

[wyattjoh]

Summary

Standardize unit-test log capture on a single helper, and stabilize the integration harness.

Unit-test log capture is rebuilt on top of a useCaptureLog() lifecycle helper that installs a fresh buffer per test via beforeEach/afterEach, replacing the prior AsyncLocalStorage-backed captureLog().run(...) wrapper. With the slot installed automatically, test bodies no longer wrap their emitting calls. As part of this, log.ui() stops appending its own trailing newline so spinner cursor-control writes survive, the cli-program writeErr newline-stripping workaround that compensated for the old behavior is removed, and a latent double-newline bug in the spinner output is fixed by moving the trailing \n onto each emitting call site.

The integration harness's config load moves out of a top-level await so each test gets a fresh instance, and a new harness test covers the new shape.

Test plan

• bun run format:check
• bun run lint
• bun run typecheck
• bun run test

[wyattjoh]

Stack: wyattjoh/nextjs-pinned-range

• chore(test): pin fixture deps and manifest-drive the e2e harness #280
  • refactor(test): standardize log capture on useCaptureLog #287 👈 this PR

Part of a stacked-prs chain. Do not merge manually.

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Latest commit: 25cef18

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ℹ️ Recent review info

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Run ID: 995f18d5-b478-4749-b708-10c8d064474a

📥 Commits

Reviewing files that changed from the base of the PR and between cb9b976 and 25cef18.

📒 Files selected for processing (2)

• packages/cli-core/src/lib/log.ts
• packages/cli-core/src/test/integration/lib/harness.test.ts

💤 Files with no reviewable changes (1)

• packages/cli-core/src/lib/log.ts

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📝 Walkthrough

Walkthrough

This PR replaces the CLI's AsyncLocalStorage-based log capture with a module-level activeCapture and exported accessors, introduces log.ui() for pre-formatted stderr UI output, routes commander output through log.data/log.ui, reroutes spinner output to log.ui(), replaces captureLog() with a useCaptureLog() test hook, updates the integration harness to use setActiveCapture(), and migrates 40+ tests to the new capture pattern (removing captured.run wrappers and per-test teardown).

Estimated code review effort

🎯 4 (Complex) | ⏱️ ~45 minutes

Possibly related PRs

• clerk/cli#280: Both PRs refactor the same logging and test capture infrastructure, replacing AsyncLocalStorage-based captureLog/withCapturedLogs with the new activeCapture/useCaptureLog pattern.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 20.45% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title 'refactor(test): standardize log capture on useCaptureLog' accurately summarizes the primary change in this PR.
Description check	✅ Passed	The description clearly explains the motivation, changes, and test plan for standardizing log capture, making it fully related to the changeset.
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.

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