fix(console): stop offering the inert native OAuth catalog (#822) - #828

The new diff (docs split + types.ts comment) is accurate and aligned with the code. The README-to-connections.md split follows the 500-line Markdown cap. Both prior findings still stand: the connected-only tail can produce a tile with an empty name, and the empty-state message tells the operator that connected providers "still appear here" in a branch where, by construction, none can. (2 earlier finding(s) still open) Code retrieval was unavailable (model: openrouter embeddings returned 404 Not Found: {"error":{"message":"No allowed providers are available for the selected model. Providers serving openai/text-embedding-3-small: openai, azure, but your account's allowed-providers setting permits only: deepinfra, streamlake, digitalocean. To change your allowed providers, visit: https://openrouter.ai/settings/privacy.","code":404,"metadata":{"available_providers":["openai","azure"],"requested_pro), so this review saw the diff alone.

	Finding	Where
	Connected tail renders a blank-named tile when no local metadata exists	(pull request description)

connectedOnly.push({
  slug,
  name: tile?.name ?? "",
  description: tile?.description ?? "",
  logo: null,
  categories: [],
});