Report bundle artifact persist failures

[chubes4]

Summary

• Adds a structured persist_for_agent_result() path so bundle artifact persistence failures keep artifact context instead of collapsing to a boolean.
• Surfaces artifact type, ID, source path, and database write details in the rollback error message/log context.
• Adds regression coverage for artifact-level persistence diagnostics.

Evidence

• The wp-site-generator iterator still fails during datamachine/import-agent, but the current result only reports the generic rollback message: https://github.com/chubes4/wp-site-generator/actions/runs/26716301687
• This PR makes the next iterator result identify the exact artifact or database failure.

Verification

• php -l inc/Engine/Bundle/AgentBundleArtifactState.php
• php -l inc/Core/Agents/AgentBundler.php
• php -l inc/Core/Database/BundleArtifacts/InstalledBundleArtifacts.php
• php -l tests/Unit/Core/Agents/AgentBundlerImportTest.php
• git diff --check
• composer test (1307 passed, 3 skipped)

AI assistance

• AI assistance: Yes
• Tool(s): OpenCode (openai/gpt-5.5)
• Used for: Added artifact-level diagnostics for bundle import persistence failures and regression coverage.

[homeboy-ci]

Homeboy Results — data-machine

Lint

✅ lint — passed

ℹ️ Full options: homeboy docs commands/lint
Deep dive: homeboy lint data-machine --changed-since 37da7a1

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/26716723345

Test

✅ test — passed

• 17 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 37da7a1

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/26716723345

Audit

✅ audit — passed

• audit — 362 finding(s)
• Total: 362 finding(s)

Deep dive: homeboy audit data-machine --changed-since 37da7a1

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/26716723345

Tooling versions

• Homeboy CLI: homeboy 0.213.5+769995bf
• Extension: wordpress from https://github.com/Extra-Chill/homeboy-extensions
• Extension revision: 06cc67ae
• Action: unknown@unknown