Function renderFailureSummaryText

src/commands/test.ts:8284–8295

* §5.2 / M2.1 piece 3 — text renderer for `test failure summary`. * One-screen agent-readable triage card, no bundle. Mirrors * `renderFailureContextText`'s top section minus the bundle metadata * (no run id, no codeVersion, no evidence count, no videoUrl) so a * caller running `failure summary`

(s: CliFailureSummary)

 * confusing partial bundle.
 */
function renderFailureSummaryText(s: CliFailureSummary): string {
  const lines: string[] = [];
  lines.push(`testId:               ${s.testId}`);
  lines.push(`status:               ${s.status}`);
  if (s.failureKind !== null) lines.push(`failureKind:          ${s.failureKind}`);
  lines.push(`snapshotId:           ${s.snapshotId}`);
  lines.push(
    `rootCauseHypothesis:  ${s.rootCauseHypothesis ?? '— (analysis pipeline produced none)'}`,
  );
  appendFixTargetLines(lines, s.recommendedFixTarget, 'recommendedFixTarget: ');
  return lines.join('\n');
}

/**
 * If every non-null entry shares the same value, return it; otherwise