Add CLI search --needs-producer-review parsing tests

[SorraTheOrc]

Summary

This PR adds comprehensive CLI tests for the wl search --needs-producer-review flag to verify boolean parsing and default semantics.

Work Item

• WL-0MM2FAK151BCC3H5 - Add CLI needsProducerReview parsing tests

Changes

Tests Added (tests/cli/issue-status.test.ts)

Added 6 new test cases in a new describe('search --needs-producer-review parsing') block:

1. --needs-producer-review true - Verifies filtering returns only items with needsProducerReview: true
2. --needs-producer-review (no value) - Verifies default behavior treats omitted value as true
3. --needs-producer-review false - Verifies filtering returns only items with needsProducerReview: false
4. --needs-producer-review yes - Verifies human-friendly yes token behaves same as true
5. --needs-producer-review no - Verifies human-friendly no token behaves same as false
6. Invalid value handling - Verifies invalid values (e.g., maybe) are rejected with appropriate error

Test Approach

• Tests create items via CLI to ensure they exist in the SQLite database (required for search)
• Tests use --json output for deterministic assertions
• Tests verify correct item IDs are returned for each filter value

Acceptance Criteria Met

• Tests exist under tests/cli/ that verify --needs-producer-review true returns only items with needsProducerReview: true
• Tests verify --needs-producer-review false returns only items with needsProducerReview: false
• Tests verify yes/ no behave the same as true/false
• Tests verify omitted value defaults to true
• Tests verify invalid values are rejected
• Full project test suite passes (1474 tests)
• No production code changes (tests-only scope)

Related Work

• Parent: WL-0MLZVRB3501I5NSU - Add search filter test coverage
• Related: WL-0MNU8PN8J0046K9Q, WL-0MNU8PNNJ005U23Q - API-level test failures (referenced in work item)

Review Focus

• Test coverage completeness for all boolean parsing variants
• Test structure follows existing patterns in tests/cli/issue-status.test.ts
• No production code changes required

[SorraTheOrc]

All CI checks are passing

This PR is ready for review.

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