Support bmad-automator runtime copy in BMAD installer

[dickymoore]

Summary

Follow-up on bma-d/add-automator for a gap in the Automator source-root packaging.

BMAD-METHOD installs the Automator module from payload/.claude/skills, but the story automator skill expects its Python helper runtime inside the installed bmad-story-automator skill directory. This PR copies only the required Automator runtime directories from the cloned Automator repo into that installed skill:

• source/scripts -> bmad-story-automator/scripts
• source/src -> bmad-story-automator/src

Scope

Intentionally limited to bma source-root installs. This does not change:

• Codex install-target support
• Automator workflow wording
• registry metadata
• external module resolution
• generic source-root semantics

What this changes

• After installing the bma module payload, checks whether bmad-story-automator/SKILL.md exists in the target.

• If present, copies:

  • source/scripts into bmad-story-automator/scripts
  • source/src into bmad-story-automator/src

• Adds a regression test covering the source-root layout.

What this does not do

• Does not register bma in the marketplace.
• Does not update bmad-plugins-marketplace/registry/official.yaml.
• Does not attempt to define a general multi-agent packaging model.
• Does not change install behaviour for other modules.

Open question

Is this the desired place to handle the Automator runtime copy?

If bma is intended to be installable through the normal BMAD installer using the current bmad-automator package layout, this PR looks necessary.

If the marketplace package should instead be made install-shaped, with the runtime already included inside the module payload, then this special-case installer hook may be redundant.

Tests

• node test/test-installation-components.js
  • 373 passed, 0 failed
• Commit hook also ran the full BMAD test pipeline successfully:
  • npm run test:refs
  • npm run test:install
  • npm run test:urls
  • npm run test:channels
  • npm run lint
  • npm run lint:md
  • npm run format:check