[codex] Update Ghost skill install copy

[nahiyankhan]

Summary

Updates stale Ghost install and command-discovery copy so it points agents at the current .ghost/fingerprint/ package layout instead of the retired direct fingerprint.yml / checks.yml shape.

Details

• Updates post-install guidance in install/install.sh to describe prose.yml, inventory.yml, composition.yml, and enforcement/checks.yml.
• Updates the ghost init discovery summary and regenerates the docs CLI manifest.
• Adds a patch changeset for @anarchitecture/ghost.

Validation

• pnpm check:install-bundle
• pnpm check:cli-manifest
• pnpm exec vitest run packages/ghost/test/skill-bundle-manifest.test.ts
• Pre-commit hook: pnpm check
• Pre-push hook: pnpm build, pnpm check, pnpm test

[nahiyankhan]

🤖 Follow-up update: removed the legacy-named skill path and old skill guidance from this PR.

What changed after the initial PR body:

• The shipped Ghost skill bundle no longer includes references/map.md or references/survey.md; install bundle check now expects 11 files.
• Public help/docs no longer label a legacy command group or advertise direct-fingerprint workflows as the new path.
• Local install was moved to /Users/nahiyan/.agents/skills/ghost, and /Users/nahiyan/.agents/skills/ghost-fingerprint was removed.

Validation: pre-push passed pnpm build, pnpm check, and full pnpm test.