skills: update buildspace skills for v1.5.0

[photon-action-bot]

Skills Update: buildspace v1.5.0

This PR updates skills documentation for buildspace based on the v1.5.0 release.

Release Notes

New Features

• Added OIDC Trusted Publishing for npm releases, with an NPM token fallback for projects that still need token-based publishing.
• Added a publish-command input so npm publishing workflows can use custom publish commands when needed.

Bug Fixes

• Fixed fallback dry-runs so they can run without requiring an NPM token.
• Kept the self-release Codex job on ubuntu-latest to avoid runner compatibility issues.

Improvement

• Made OIDC publishing opt-in, preserving least-privilege defaults for release workflows.
• Routed internal ubuntu-latest jobs through Blacksmith where available, while keeping ubuntu-latest as the fallback for external callers. 🚀

---

🤖 This PR was auto-generated by Claude Code via the update-skills action in buildspace.

---

^{Need help on this PR? Tag @codesmith with what you need. Autofix is disabled.}