Add a Compact transcript setting

[prkl78]

What changed

A Compact transcript toggle in Settings → General. When it is on, a work group stays folded behind the summary line that already titles it instead of opening while the turn runs.

Why

A turn that runs a dozen commands pushes the answer off screen, and the steps are rarely what you are reading. The line already says what is happening and how many steps it has taken, so the group opening on top of that is mostly noise. Off by default; nothing changes unless you ask for it.

The auto-open is the only thing the setting removes. Clicking the line still opens the group, a manual override still sticks, and a step waiting on an approval still opens itself, so nothing is ever approved unseen. A lone call with no headline never formed a group, so it is unaffected.

Follows the shape of the existing Anchor prompts to top setting: flag in appearance.ts, a useTranscript* hook, one Row in GeneralPage.

UI

Same transcript, with the setting off and on:

Off	On
Running 9 commands + 10 rows	Running 9 commands

Checklist

• I ran npm run check
• This PR is small and focused
• I did not mix unrelated changes

Note on the first box: tsc --noEmit is clean and the tests covering this change pass. Four test files (ModelPicker, SkillsPage, useInboxUnseen, linkedSessionSeen) fail for me on a clean main as well, with localStorage undefined under happy-dom on Node 26 — unrelated to this change.

🤖 Generated with Claude Code

Summary by CodeRabbit

• New Features

  • Added a General settings toggle for compact transcripts.
  • Compact mode keeps active work folded behind a summary showing the current phase, activity indicator, and step count.
  • Click a summary to expand its details; approval-waiting activity opens automatically.
  • Compact transcript preference is saved and restored across sessions.

• Bug Fixes

  • Updated active transcript groups to remain collapsed in compact mode unless approval is required or manually expanded.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Advanced

Run ID: dc941369-d664-4e61-864a-858b4f00d872

📥 Commits

Reviewing files that changed from the base of the PR and between 08ba69d and ef493a6.

📒 Files selected for processing (7)

• CHANGELOG.md
• src/hooks/useTranscriptCompact.ts
• src/lib/appearance.test.ts
• src/lib/appearance.ts
• src/surfaces/AgentTranscript.test.ts
• src/surfaces/AgentTranscript.tsx
• src/surfaces/SettingsView.tsx

Included review availability: Your plan provides up to 4 included reviews per hour; 3 remain after this review.

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📝 Walkthrough

Walkthrough

The change adds a persisted compact-transcript preference, a General settings toggle, and transcript behavior that folds active work while keeping approval-waiting groups open.

Changes

Compact transcript

Layer / File(s)	Summary
Preference storage and observation src/lib/appearance.ts, src/lib/appearance.test.ts, src/hooks/useTranscriptCompact.ts	Adds local-storage helpers, a change event, persistence tests, and a hook that tracks preference changes.
General settings integration src/surfaces/SettingsView.tsx	Adds the Compact transcript toggle and persists its value.
Transcript folding behavior src/surfaces/AgentTranscript.tsx, src/surfaces/AgentTranscript.test.ts, CHANGELOG.md	Folds active work in compact mode, keeps approval-waiting groups open, and adds coverage and changelog documentation.

Priority: ⬇️ Low

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

Change: Feature

Sequence Diagram(s)

sequenceDiagram
  participant SettingsView
  participant appearance
  participant useTranscriptCompact
  participant AgentTranscript
  SettingsView->>appearance: saveTranscriptCompact(value)
  appearance->>useTranscriptCompact: dispatch preference change
  useTranscriptCompact->>AgentTranscript: update compact state
  AgentTranscript->>AgentTranscript: keep active phase collapsed unless approval is waiting

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Suggested reviewers: hardbeat920

Merge Risk: ⚪ Minimal · up to ef493

The compact transcript toggle preserves approval expansion and manual control as intended. No actionable merge risk remains.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 33.33% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 6 functions across 6 files. (1 skipped: 1…	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 and concisely identifies the main change: adding a Compact transcript setting.
Description check	✅ Passed	The description covers what changed, why it changed, UI impact, implementation scope, checklist status, and test limitations. It matches the required template and explains the unrelated existing test …

Full details: Docstring Coverage

Explanation

Docstring coverage is 33.33% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 6 functions across 6 files. (1 skipped: 1 unsupported.)

• Fix all pre-merge checks with AI

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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