Fix split-cache stale worker lock reclaim

[chubes4]

Summary

• complete stale worker lock reclaim for cases where delete/add leaves the local snapshot unlocked while the persistent option still blocks add_option()
• replace the option whenever the post-delete snapshot is not actively held by another worker
• add smoke coverage for the split-cache stale option path observed on intelligence.horse

Verification

• php tests/worker-lock-smoke.php
• homeboy lint --path /Users/chubes/Developer/data-machine@fix-stale-worker-lock-cache-split --extension wordpress --file inc/Cli/WorkerLock.php --errors-only

Runtime context

Follow-up to #2355. The live intelligence.horse worker still saw a stale lock but exited locked because add_option failed while the post-delete snapshot no longer reported stale.

AI assistance

• AI assistance: Yes
• Tool(s): OpenCode (GPT-5.5)
• Used for: Diagnosed the remaining live stale lock reclaim edge case, drafted the lock acquisition fix and smoke coverage, and ran targeted verification for Chris to review.

[homeboy-ci]

Homeboy Results — data-machine

Lint

✅ lint — passed

ℹ️ Full options: homeboy docs commands/lint
Deep dive: homeboy lint data-machine --changed-since b2904ac

Artifacts and drill-down

• CI results artifact: homeboy-ci-results-data-machine-lint-quality-Linux-node24 contains immediate command JSON for this action invocation.
• Observation artifact: homeboy-observations-data-machine-lint-quality-Linux-node24 contains exported Homeboy run history for deeper queries.
• Drill-down: download the observation artifact, then run homeboy runs import <dir>, homeboy runs list, and homeboy runs findings <run-id>.
• Artifacts are attached to the workflow run: https://github.com/Extra-Chill/data-machine/actions/runs/26608005684

Test

✅ test — passed

• 102 passed

ℹ️ Auto-fix lint issues: homeboy refactor data-machine --from lint --write
ℹ️ Collect coverage: homeboy test data-machine --coverage
ℹ️ Save test baseline: homeboy test data-machine --baseline
ℹ️ Pass args to test runner: homeboy test -- [args]
ℹ️ Full options: homeboy docs commands/test
Deep dive: homeboy test data-machine --changed-since b2904ac

Artifacts and drill-down

• CI results artifact: homeboy-ci-results-data-machine-test-quality-Linux-node24 contains immediate command JSON for this action invocation.
• Observation artifact: homeboy-observations-data-machine-test-quality-Linux-node24 contains exported Homeboy run history for deeper queries.
• Drill-down: download the observation artifact, then run homeboy runs import <dir>, homeboy runs list, and homeboy runs findings <run-id>.
• Artifacts are attached to the workflow run: https://github.com/Extra-Chill/data-machine/actions/runs/26608005684

Audit

✅ audit — passed

• requested_detectors — 3 finding(s)
• Total: 3 finding(s)

Deep dive: homeboy audit data-machine --changed-since b2904ac

Artifacts and drill-down

• CI results artifact: homeboy-ci-results-data-machine-audit-quality-Linux-node24 contains immediate command JSON for this action invocation.
• Observation artifact: homeboy-observations-data-machine-audit-quality-Linux-node24 contains exported Homeboy run history for deeper queries.
• Drill-down: download the observation artifact, then run homeboy runs import <dir>, homeboy runs list, and homeboy runs findings <run-id>.
• Artifacts are attached to the workflow run: https://github.com/Extra-Chill/data-machine/actions/runs/26608005684

Tooling versions

• Homeboy CLI: homeboy 0.201.3+2ddde1dc
• Extension: wordpress from https://github.com/Extra-Chill/homeboy-extensions
• Extension revision: 059d2aae
• Action: unknown@unknown