Model selector labels 'Default' but ships Sonnet — misleading UX

Summary

The /model command presents one option labelled Default, but the actual default selected at session start is Sonnet, not the model Anthropic recommends as default.

Current behaviour

• Opening a new Claude Code session auto-selects Sonnet 4.6
• Running /model shows an option labelled "Default"
• The label implies the currently-selected model is the recommended default — but it isn't

Expected behaviour

Either:

1. The model labelled "Default" should actually be selected by default when opening a new session, OR
2. The label should be renamed to remove the implication that it represents Anthropic's recommendation

Suggested improvement

Support a "model": "default" (or "model": "recommended") value in settings.json that resolves to whatever Anthropic currently recommends — so users can express "always use the recommended model" without pinning a specific version string that ages out.

Why it matters

Users who want to follow Anthropic's recommendation currently have no persistent way to do so without hardcoding a specific model ID. That forces a choice between manual session setup (run /model every time) or pinning a version that will eventually be outdated.