Add homepage metadata to package.json

[chenlinxi890-spec]

transform PR draft

Microbounty lead: charles-openclaw/charles-microbounties#3402

Upstream repository: https://github.com/ForbesLindesay/transform

Suggested branch:

codex/add-homepage-metadata

Commit message:

Add package homepage metadata

PR title:

Add homepage metadata to package.json

PR body:

Adds the npm `homepage` metadata field pointing to the public GitHub README:

```json
"homepage": "https://github.com/ForbesLindesay/transform#readme"

This gives npm clients and registry tooling a direct project landing page while leaving runtime code unchanged.

Validation:

• Parsed package.json locally with Python's JSON parser.
• Confirmed homepage is https://github.com/ForbesLindesay/transform#readme.

Notes:

- Metadata-only change.
- No runtime code, dependencies, API, or build behavior changed.
- No production testing, secrets, credentials, private data, scanning, or destructive action involved.
- Actual PR submission is still blocked by unavailable GitHub write tooling in this environment.