Function FetchManifestFromGitHub

FetchManifestFromGitHub(
    repoUrl: string,
    version: string,
    options: GitHubClientOptions,
    subpath?: string,
): Promise<ManifestFetchResult>
Fetches the mj-app.json manifest from a GitHub repository at a specific tag.
Parameters
- repoUrl: string
  GitHub repository URL (may include an in-repo subpath for multi-app repos)
- version: string
  Tag/version to fetch (e.g., 'v1.2.0'). If not provided, fetches from default branch.
- options: GitHubClientOptions
  GitHub client options (auth token, etc.)
- Optionalsubpath: string
  Optional in-repo directory the app lives under. When omitted, falls back to any subpath embedded in repoUrl. Empty/undefined → manifest at repo root.
Returns Promise<ManifestFetchResult>
The raw manifest JSON string or error details
- Defined in packages/OpenApp/Engine/src/github/github-client.ts:251