Add Codex Skin Pack Installer to recommended tools

[ChannelerH]

Adds Codex Skin Pack Installer to the recommended tools list so Codexia users can copy the setup command directly from the app.

Project link: https://github.com/ChannelerH/codex-skin-packs

Why it fits:

• It is a Codex plugin and standalone Skill for installing verified public-safe Codex desktop skin packs.
• The setup command uses the Codex plugin marketplace flow and then installs codex-skin-pack-installer@codex-skin-packs.
• The plugin stages release downloads, validates theme.json / background.png, and keeps restore guidance visible.

Validation:

• python3 -m json.tool src/assets/recommend.json
• Verified the setup command in an isolated HOME.
• bun run build

[chatgpt-codex-connector]

To use Codex here, create an environment for this repo.

[ChannelerH]

Reviewer note: I tightened the install flow behind this recommended-tool entry so Codexia users can try it with one standard command instead of reading a long gallery page.

Verification points:

• npx skills add ChannelerH/codex-skin-packs --skill codex-skin-pack-installer --global --agent codex --yes
• direct starter pack: Caishen Readable
• release zip downloads remain public
• restore guidance is visible before applying a skin

Live install page: https://codex-theme-gallery.howardhua.chatgpt.site/codex-skin-pack-installer?utm_source=milisp-codexia&utm_medium=pr-comment&utm_campaign=reviewer-verification

The repo is independent/unofficial and avoids private Codex screenshots.