Add isNotLoggedIn() utility to detect unauthenticated state and display
"Not logged in" message in both LogoV2 and CondensedLogo components.
Replace billing type with provider display name (e.g. "OpenAI", "AWS
Bedrock") when logged in. Subscribe to authVersion to re-render on
login/logout. Add third-party provider model options for OpenAI, Gemini,
Grok, Bedrock, Vertex, and Foundry. Disable biome formatter.
Add xAI Grok as a new API provider. Reuses OpenAI-compatible message/tool
converters and stream adapter with Grok-specific client and model mapping.
Default model mapping:
opus → grok-4.20-reasoning
sonnet → grok-3-mini-fast
haiku → grok-3-mini-fast
Users can customize mapping via:
- GROK_MODEL env var (override all)
- GROK_MODEL_MAP env var (JSON family map, e.g. {"opus":"grok-4"})
- GROK_DEFAULT_{FAMILY}_MODEL env vars
Activation: CLAUDE_CODE_USE_GROK=1 or modelType: "grok" in settings.json
Also integrates with /provider command for runtime switching.
