Fix pipeline batch parent finalization

[chubes4]

Summary

• Rechecks pipeline batch parent completion after the final batch chunk so fully terminal children cannot leave the parent stuck in processing with no future scheduler owner.
• Makes jobs liveness batch-aware by counting pipeline batch chunk actions and active child jobs as scheduler paths instead of reporting them as no_scheduler_path.
• Covers the missed-finalization gap with a focused batch scheduler unit test and updates the liveness smoke test for batch ownership.

Fixes #2180.

Verification

• php -l inc/Abilities/Engine/PipelineBatchScheduler.php
• php -l inc/Cli/Commands/JobsCommand.php
• php -l tests/Unit/Abilities/Engine/PipelineBatchSchedulerTest.php && php -l tests/job-liveness-cli-smoke.php
• php tests/job-liveness-cli-smoke.php
• vendor/bin/phpcs inc/Abilities/Engine/PipelineBatchScheduler.php inc/Cli/Commands/JobsCommand.php tests/Unit/Abilities/Engine/PipelineBatchSchedulerTest.php tests/job-liveness-cli-smoke.php
• homeboy test --path /Users/chubes/Developer/data-machine@fix-issue-2180-child-finalization --extension wordpress --filter PipelineBatchSchedulerTest passed: 1288 tests, 1285 passed, 3 skipped.

Notes

• vendor/bin/phpunit tests/Unit/Abilities/Engine/PipelineBatchSchedulerTest.php could not run because vendor/bin/phpunit is not present in this checkout; Homeboy WP Codebox was used for PHPUnit verification.
• homeboy lint --path /Users/chubes/Developer/data-machine@fix-issue-2180-child-finalization --extension wordpress --force-hot still reports pre-existing admin React lint findings outside the touched files.

AI assistance

• AI assistance: Yes
• Tool(s): OpenCode (openai/gpt-5.5)
• Used for: Investigating issue Investigate processing child jobs with no scheduler path #2180, drafting the generic Data Machine fix, adding targeted coverage, and running local verification. Chris remains responsible for review and merge.

[homeboy-ci]

Homeboy Results — data-machine

Lint

✅ lint — passed

ℹ️ Full options: homeboy docs commands/lint
Deep dive: homeboy lint data-machine --changed-since 40cc9b1

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/26310484908

Test

✅ test — passed

• 41 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 40cc9b1

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/26310484908

Audit

✅ audit — passed

• dead_code — 151 finding(s)
• requested_detectors — 126 finding(s)
• intra-method-duplication — 66 finding(s)
• repeated_literal_shape — 13 finding(s)
• field_patterns — 9 finding(s)
• Taxonomy — 5 finding(s)
• structural — 5 finding(s)
• Abilities — 4 finding(s)
• Flow — 4 finding(s)
• File — 2 finding(s)
• Total: 395 finding(s)

Deep dive: homeboy audit data-machine --changed-since 40cc9b1

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/26310484908

Tooling versions

• Homeboy CLI: homeboy 0.197.2+51ec8b6b
• Extension: wordpress from https://github.com/Extra-Chill/homeboy-extensions
• Extension revision: dd23ee80
• Action: unknown@unknown