fix(web): show command output in work log

[LikoKiko]

What Changed

Fixes #4076.

Updated command work-log entries so they display:

• The executed command once
• The actual command output underneath it

The fix supports output from Codex and ACP-based providers such as Claude.

It also preserves the existing Cursor behavior when stdout is available but the original command input is missing.

Added focused regression tests covering:

• Codex command output
• Claude ACP stdout
• Commands with no output
• Cursor events without command metadata

Why

Command execution entries were sometimes showing the command twice instead of showing the command followed by its output.

This happened because the command text could be stored as both the command and detail, while the real provider output was not being selected for the expanded work-log entry.

The updated logic extracts the actual output only when the original command is available, preventing duplicated command text and avoiding misleading output-only rows.

UI Changes

This changes the content shown when expanding a command work-log entry:

Before

printf hello

printf hello

After

printf hello

hello

There are no visual styling or layout changes.

Testing

• vp test apps/web/src/session-logic.command-output.test.ts — 3 tests passed
• vp test apps/web/src/session-logic.test.ts — 59 tests passed
• vp check — completed with 0 errors
• git diff --check — passed
• vp run test — attempted, but unrelated oxlint-plugin-t3code tests could not spawn the local Windows oxlint executable (ENOENT)

Checklist

• This PR is small and focused
• I explained what changed and why
• I included before/after screenshots for any UI changes
• I included a video for animation/interaction changes

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Note

Low Risk
UI-only presentation logic in deriveWorkLogEntries with focused unit tests; no auth or data-path changes.

Overview
Fixes expanded command work-log rows that repeated the command string instead of showing stdout/provider output.

extractToolDetail now treats command executions specially: it ignores detail when it matches the extracted command, requires a known command before attaching output, and pulls text via new extractToolOutput (Codex aggregatedOutput, ACP rawOutput stdout/stderr, nested result/content, ACP text blocks via extractAcpTextContent), with exit-code suffix stripping. When there is no distinct output, detail is omitted so the row is command-only.

Adds session-logic.command-output.test.ts with regression cases for Codex, Claude ACP stdout, and silent commands.

^{Reviewed by Cursor Bugbot for commit c1189de. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Show command output instead of command text in work log entries

• Adds extractToolOutput in session-logic.ts to retrieve normalized output from tool/command executions, checking aggregatedOutput, stdout/stderr, and ACP content arrays in priority order, stripping trailing exit code markers.
• Updates extractToolDetail to prefer actual command output over echoing the command string, and returns null when no output is available instead of repeating the command.
• Adds extractAcpTextContent to collect non-empty text from ACP-style { type: 'content', content: { type: 'text', text } } entry arrays.
• Behavioral Change: work log entries for command activities now show output (or nothing) rather than the raw command text.

^{Macroscope summarized c1189de.}

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[macroscopeapp]

Approvability

Verdict: Needs human review

This PR adds new output extraction logic for displaying command results in the work log. While the changes are UI/display focused and well-tested, the author is new to this file and the extraction logic handles multiple payload formats, warranting human verification.

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