Expose ability tool projection helper

[chubes4]

Summary

• Adds datamachine_register_ability_tool() and the canonical datamachine_ability_tool_projections filter for ability-native model-tool projection.
• Keeps existing datamachine_ability_tools declarations working while feeding the same AbilityToolSource policy and execution path.
• Extends smoke coverage for helper registration, canonical projection filtering, legacy filter compatibility, policy filtering, and ability execution.

Fixes #2473

Tests

• php tests/ability-tool-source-smoke.php
• php tests/tool-source-registry-smoke.php
• php tests/tool-executor-ability-native-smoke.php
• php -l inc/Engine/AI/Tools/ability-tool-projections.php && php -l inc/Engine/AI/Tools/Sources/AbilityToolSource.php && php -l inc/bootstrap.php && php -l tests/ability-tool-source-smoke.php

AI assistance

• AI assistance: Yes
• Tool(s): OpenCode (openai/gpt-5.5)
• Used for: Inspected the existing tool/ability projection path, implemented the helper/filter surface and smoke coverage, and ran focused 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 32e1dcd

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/26892229735

Test

✅ test — passed

ℹ️ Auto-fix lint issues: homeboy refactor data-machine --from lint --write
ℹ️ Collect coverage: homeboy test data-machine --coverage
ℹ️ Pass args to test runner: homeboy test -- [args]
ℹ️ Full options: homeboy docs commands/test
Deep dive: homeboy test data-machine --changed-since 32e1dcd

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/26892229735

Audit

✅ audit — passed

• audit — 391 finding(s)
• Total: 391 finding(s)

Deep dive: homeboy audit data-machine --changed-since 32e1dcd

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/26892229735

Tooling versions

• Homeboy CLI: homeboy 0.219.1+1b5ec6b8
• Extension: wordpress from https://github.com/Extra-Chill/homeboy-extensions
• Extension revision: 471a6b73
• Action: unknown@unknown