ci: add Homeboy release workflow and ZIP asset

[chubes4]

Summary

• Adds the standard Homeboy reusable workflow for audit, lint, test, conventional-release automation.
• Adds a build-release-asset follow-up job when Homeboy creates a release.
• Builds and uploads data-machine-code.zip with Composer production dependencies bundled for clean plugin installation.

Issue

• Fixes Publish vendor-bundled release artifact for public installability #407

Related PRs

• Data Machine companion PR: ci: publish vendor-bundled release ZIP data-machine#2031

Validation

• composer install --no-dev --optimize-autoloader --prefer-dist --no-interaction
• Locally staged and zipped dist/data-machine-code.zip, extracted it, and verified it contains data-machine-code.php, inc/, and vendor/autoload.php.
• Verified extracted ZIP excludes tests/, docs/, .github/, node_modules/, and phpstan-baseline.neon.
• ruby -e 'require "yaml"; YAML.load_file(".github/workflows/homeboy.yml")'

Notes

• homeboy audit reports existing repo-wide heuristic findings unrelated to this workflow-only change.
• homeboy lint reports existing repo-wide PHPCS findings unrelated to this workflow-only change.
• homeboy test currently fails before tests run in the local environment because the local dependency load is missing WP_Agent_Principal_Access_Store from Agents API/Data Machine bootstrap.

AI assistance

• AI assistance: Yes
• Tool(s): OpenCode (gpt-5.5)
• Used for: Added the Homeboy/release-asset workflow, validated the local ZIP contents, and drafted the PR description. Chris specified the issue, desired workflow shape, and release artifact requirements.

[homeboy-ci]

Homeboy Results — data-machine-code

Lint

✅ lint — passed

Deep dive: homeboy lint data-machine-code --changed-since aa7d970

Test

✅ test — passed

ℹ️ No impacted tests found for --changed-since aa7d970
ℹ️ Run full suite if needed: homeboy test data-machine-code
Deep dive: homeboy test data-machine-code --changed-since aa7d970

Audit

✅ audit — passed

Deep dive: homeboy audit data-machine-code --changed-since aa7d970

Tooling versions

• Homeboy CLI: homeboy 0.182.0+940ca9a
• Extension: wordpress from https://github.com/Extra-Chill/homeboy-extensions
• Extension revision: 25a2f3e
• Action: unknown@unknown