Verifies the Gitea instance, token and scopes, registers or reuses the aegis-gitea-mcp OAuth app, generates missing secrets and writes a 0600 env file from the template. Prints client configs and deployment snippets without any secret value.
Adds the pydantic-settings Settings with validated GITEA_URL, OAuth scopes
and toolsets, the argparse CLI skeleton, catalog.model, identity and
GiteaAPIError. Test fixtures now isolate env, cwd and state paths in tmp.