Get a repo's community profile

Read a repository’s community-health percentage and which of GitHub’s standard community files it has.

Steps

Call get_community_profile with the repository’s owner and name:
```
get_community_profile { owner: "octocat", repo: "example" }
```
Read the health percentage and the file-presence flags off the response:
```
{
  "healthPercentage": 87,
  "description": "A repository doing repository things.",
  "hasReadme": true,
  "hasLicense": true,
  "hasContributing": true,
  "hasCodeOfConduct": false,
  "hasIssueTemplate": true,
  "hasPullRequestTemplate": true
}
```
Each has* field is true when GitHub reports that file as present for the repository (a plain boolean derived from GitHub’s files.* entries, not the file’s content). description is the repository description as GitHub’s community-profile endpoint reports it, and may be null.

missing_scope: no GitHub token was resolvable. Set GITHUB_TOKEN or run gh auth login.
github_api_error: check the message for the underlying HTTP status — a nonexistent or inaccessible owner/repo surfaces as a 404 here.