[meta] do not publish .claude

[Avicennasis]

Adds .claude to publishConfig.ignore, following the same approach as 816c9e2 for .gitmodules.

As noted in #338 and #341, resolve@1.22.12 ships .claude/settings.local.json and .claude/notes.md in the published tarball. In #341 you mentioned that explicitly adding .claude to .npmignore would be a viable solution — since .npmignore here is generated by npmignore --auto from publishConfig.ignore, this adds it there.

2.0.0-next.7 happens to be clean, so this is purely defensive for future publishes (and would cover the 1.x line if backported).

Verified locally: planted a dummy .claude/settings.local.json in the working tree; with this change, npm pack --dry-run (via the prepack npmignore step) excludes it.

Refs #338. Refs #341.

[ljharb]

there's no need for this; i added a feature to npm itself so it can be globally npmignored, and there's no danger of publishing .claude files anyways.