* fix(providers): show Claude Ultra Code by capability
Expose Ultra Code for xhigh-capable Claude models and keep first-party Claude model metadata in one manifest so future model updates do not need scattered feature lists.
* fix(providers): preserve Claude fast mode aliases
Normalize versioned Claude model IDs through the manifest before checking fast-mode support so dated Opus IDs keep the same feature surface as their base model.
* fix(providers): keep Claude fast mode first-party
Anchor Claude model normalization so custom settings models that merely contain first-party IDs do not inherit manifest-only fast mode.
* fix(providers): preserve Claude runtime aliases
Keep Fast Mode capability checks strict to manifest IDs while allowing provider-form Claude runtime model strings to resolve known model metadata.
