Summary

• Add an Authentication settings section for provider install/auth status, OpenClaw gateway config, and manual status refresh.
• Centralize provider availability logic so new-thread provider selection only shows ready providers and falls back predictably when a preferred provider is unavailable.
• Update the chat composer provider picker to use the filtered provider list and hide providers that are not selectable.
• Refresh provider health checks on demand instead of caching a startup snapshot.
• Add unit and browser coverage for provider availability and picker filtering.

Testing

• bun fmt
• bun lint
• bun typecheck
• bun run test