Add unit test: show --json includes structured audit (present & absent)

[SorraTheOrc]

Ensure returns a typed JSON object with 'workItem' and includes an 'audit' object (time, author, text) when present and omits the 'audit' key when audit is undefined/null. Include tests for both presence and absence cases. Reference: WL-0MMRJM03Q0BG25IG

[SorraTheOrc]

OpenCode

Added test tests/cli/show-json-audit.test.ts validating 'wl show --json' includes structured audit when present and omits audit key when absent. Commit 5544bc9.

[SorraTheOrc]

OpenCode

Also updated src/commands/helpers.ts to ensure concise/normal human audit excerpts use redactAuditText consistently (commit e1996ff).

[SorraTheOrc]

worklog

Closed with reason: PR #1167 opened with tests and helpers update (see commit e1996ff, 5544bc9)