fix(web): compact pull request metadata and completed checks

[maria-rcks]

The pull request summary used too much space for metadata and completed checks, with bright disclosure controls and repeated borders competing with the content. Reviewers and labels now share an icon-led strip, completed checks start collapsed while actionable checks remain visible, and muted headings and chevrons replace the extra chrome; the description label appears only when collapsed and all existing actions remain available.

Verified in the real web client using PR #10598, dark and light themes, 639px and 353px panels, description collapse/reopen, and completed-check show/hide. The 99 focused tests and web typecheck pass; targeted lint retains one existing array-index-key warning.

Before the redesign, full panel from top through the composer:

After, same PR with compact metadata and muted controls:

Description and completed-check controls, captured at a low frame rate:

Model: gpt-6. Harness: Codex.

[macroscopeapp]

Approvability

Verdict: Not approved

Macroscope's review found this PR not approvable — This production web UI change alters the default pull-request experience by hiding completed checks until explicitly expanded, alongside broader metadata and section presentation changes. Because product defaults and interactive summary behavior change, human review is warranted.

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Team

Run ID: b7df0a4a-6fe4-46c1-afee-bb12c33fa5f2

📥 Commits

Reviewing files that changed from the base of the PR and between ee9d3e2 and ef1a62d.

📒 Files selected for processing (1)

• apps/web/src/components/pullRequest/PullRequestSummaryTab.tsx

🚧 Files skipped from review as they are similar to previous changes (1)

• apps/web/src/components/pullRequest/PullRequestSummaryTab.tsx

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📝 Walkthrough

Walkthrough

The pull request summary updates metadata, section, comment, label, description, markdown, and check presentation. Checks now summarize their state and hide completed checks by default with an expansion control.

Changes

Pull request summary presentation

Layer / File(s)	Summary
Summary structure and styling apps/web/src/components/pullRequest/PullRequestSummaryTab.tsx, apps/web/src/components/pullRequest/PullRequestMarkdown.tsx	Metadata uses tooltip-backed icons and compact wrapping. Sections support accessible collapse labels and hidden open titles. Comments, labels, descriptions, and markdown details use updated borders, spacing, typography, and contrast.
Check summary rendering apps/web/src/components/pullRequest/PullRequestSummaryTab.tsx	Checks show a textual summary, hide completed checks by default, and provide a pull-request-scoped toggle. Existing filtering, summaries, toggles, and actions remain available.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Merge Risk: ⚪ Minimal · up to ef1a6

This updates pull-request metadata and check presentation, including collapsed completed checks and a per-PR expansion toggle. No concrete merge-blocking risk is identified.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 40.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 5 functions across 2 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
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.
Title check	✅ Passed	The title clearly summarizes the primary web changes: compact pull request metadata and updated completed-check behavior.
Description check	✅ Passed	The description explains what changed and why, documents the UI changes, includes before/after screenshots and an interaction video, and reports verification results. It does not use the template head…

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