swamp-extension-quality and swamp-extension-publish skills don't guide zod import map resolution for scorer

Description

When publishing an extension that uses zod with a bare specifier import (import { z } from "zod") mapped via deno.json, the swamp.club scorer fails with:

deno doc failed (code 1): Warning Import "zod" not a dependency
  hint: If you want to use the npm package, try running `deno add npm:zod`
error: Failed resolving 'zod' from 'file:<redacted>

The root cause is that deno.json is not included in the published tarball by default, so the scorer's deno doc --lint sandbox cannot resolve the bare "zod" specifier.

Expected Skill Guidance

The swamp-extension-quality and swamp-extension-publish skills should explicitly advise:

1. If the extension uses zod (which the bundler treats specially — not inlined), add deno.json to additionalFiles: in manifest.yaml so the scorer's sandbox has the import map.
2. Inline npm: specifiers are blocked by the swamp linter (no-import-prefix rule), so the bare specifier + import map approach is the only valid path — but it only works if deno.json is in the tarball.

Workaround Applied

Added deno.json to additionalFiles: in manifest.yaml. This resolved the scorer failure.

Environment

• swamp version: 20260424.000956.0-sha.25668e08
• OS: macOS 26.4.1