Add deterministic GitHub issue label task

[chubes4]

Summary

• Adds a github_update_issue_labels system task for deterministic surgical issue label transitions.
• Lets the task infer the fetched GitHub issue from pipeline context when embedded after a fetch step.
• Updates GitHub ability smoke coverage and fixes a PHP 8.5 null-cast warning in agent provenance label handling.

Tests

• php tests/smoke-github-create-abilities.php
• php tests/smoke-github-issue-labels-task.php
• php tests/smoke-github-create-tools.php
• php -l inc/Abilities/GitHubAbilities.php && php -l inc/Tasks/GitHubIssueLabelsTask.php && php -l tests/smoke-github-create-abilities.php && php -l tests/smoke-github-issue-labels-task.php

AI assistance

• AI assistance: Yes
• Tool(s): OpenCode (GPT-5.5)
• Used for: Drafted the deterministic label task, smoke coverage, and test harness updates; Chris directed the determinism approach and remains responsible for review.

[homeboy-ci]

Homeboy Results — data-machine-code

Lint

✅ lint — passed

ℹ️ Full options: homeboy docs commands/lint
ℹ️ Save lint baseline: homeboy lint data-machine-code --baseline
Deep dive: homeboy lint data-machine-code --changed-since 9bb3663

Artifacts and drill-down

• CI results artifact: homeboy-ci-results-data-machine-code-lint-quality-Linux-node24 contains immediate command JSON for this action invocation.
• Observation artifact: homeboy-observations-data-machine-code-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-code/actions/runs/27097827801

Test

✅ test — passed

ℹ️ Auto-fix lint issues: homeboy refactor data-machine-code --from lint --write
ℹ️ Collect coverage: homeboy test data-machine-code --coverage
ℹ️ Pass args to test runner: homeboy test -- [args]
ℹ️ Full options: homeboy docs commands/test
Deep dive: homeboy test data-machine-code --changed-since 9bb3663

Artifacts and drill-down

• CI results artifact: homeboy-ci-results-data-machine-code-test-quality-Linux-node24 contains immediate command JSON for this action invocation.
• Observation artifact: homeboy-observations-data-machine-code-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-code/actions/runs/27097827801

Audit

✅ audit — passed

• audit — 14 finding(s)
• Total: 14 finding(s)

Deep dive: homeboy audit data-machine-code --changed-since 9bb3663

Artifacts and drill-down

• CI results artifact: homeboy-ci-results-data-machine-code-audit-quality-Linux-node24 contains immediate command JSON for this action invocation.
• Observation artifact: homeboy-observations-data-machine-code-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-code/actions/runs/27097827801

Tooling versions

• Homeboy CLI: homeboy 0.222.6+35fdfcb
• Extension: wordpress from https://github.com/Extra-Chill/homeboy-extensions
• Extension revision: ab112fd6
• Action: unknown@unknown