Pass canonical identity to action policy resolution

[chubes4]

Summary

• Pass canonical workspace, user_id, acting_user_id, agent_id, agent_slug, and session/request identifiers into action-policy resolution from ToolExecutor.
• Keep Data Machine job/flow metadata namespaced under datamachine while preserving client_context for client-specific details.
• Preserve canonical agent identity even when no persisted Data Machine agent config exists, without triggering fallback registered-agent lookups.

Closes #2438.

Tests

• php -l inc/Engine/AI/Actions/ActionPolicyResolver.php && php -l inc/Engine/AI/Tools/ToolExecutor.php && php -l tests/Unit/AI/Tools/ToolExecutorValidationTest.php
• vendor/bin/phpcs inc/Engine/AI/Actions/ActionPolicyResolver.php inc/Engine/AI/Tools/ToolExecutor.php tests/Unit/AI/Tools/ToolExecutorValidationTest.php
• homeboy lint --path /Users/chubes/Developer/data-machine@fix-action-policy-context --extension wordpress --changed-only
• homeboy test --path /Users/chubes/Developer/data-machine@fix-action-policy-context --extension wordpress

Note: full homeboy lint --path /Users/chubes/Developer/data-machine@fix-action-policy-context --extension wordpress reports an unrelated existing PHPCS finding in inc/Core/FilesRepository/MediaValidator.php for deprecated finfo_close(); changed-file lint passes.

AI assistance

• AI assistance: Yes
• Tool(s): OpenCode (GPT-5.5)
• Used for: Inspecting the Data Machine/Agents API action-policy boundary, drafting the implementation, adding focused tests, and running 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 9525289

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/26786154877

Test

✅ test — passed

• 798 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 9525289

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/26786154877

Audit

✅ audit — passed

• audit — 407 finding(s)
• Total: 407 finding(s)

Deep dive: homeboy audit data-machine --changed-since 9525289

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/26786154877

Tooling versions

• Homeboy CLI: homeboy 0.216.2+cf2ee011
• Extension: wordpress from https://github.com/Extra-Chill/homeboy-extensions
• Extension revision: 477fc192
• Action: unknown@unknown