Stop abandoned cleanup on zero-yield pages

[chubes4]

Summary

• Stop abandoned cleanup classifier paging when a page scans rows but produces no cleanup metadata writes/removals.
• Return the existing no-progress continuation evidence so operators see the stop reason and next same-stage command without being encouraged into budget-burning loops.
• Add smoke coverage for the abandoned cleanup path, not just active-no-signal drain.

Closes #859.

Tests

• No syntax errors detected in inc/Workspace/WorkspaceAbandonedCleanupOrchestrator.php
• No syntax errors detected in tests/smoke-abandoned-cleanup-orchestrator.php
• abandoned cleanup orchestrator smoke passed
• workspace compact output test passed.
• workspace safe cleanup orchestrator test passed
• worktree-active-no-signal-triage-preview: ok

AI assistance

• AI assistance: Yes
• Tool(s): openai/gpt-5.5 via OpenCode
• Used for: Investigated the cleanup continuation flow, implemented the minimal orchestrator change, added regression coverage, and ran targeted verification.

[homeboy-ci]

Homeboy Results — data-machine-code

Lint

✅ lint — passed

ℹ️ Full options: homeboy docs commands/lint
Deep dive: homeboy lint data-machine-code --changed-since 0e0f22e

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/28675089338

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 Save test baseline: homeboy test data-machine-code --baseline
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 0e0f22e

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/28675089338

Audit

✅ audit — passed

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

Deep dive: homeboy audit data-machine-code --changed-since 0e0f22e

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/28675089338

Tooling versions

• Homeboy CLI: homeboy 0.280.13+89fee93c89fb+cdfee44
• Extension: wordpress from https://github.com/Extra-Chill/homeboy-extensions
• Extension revision: 9eefae72
• Action: unknown@unknown