- centralize web search provider readiness and resolution logic
- fall back when the configured provider is unavailable or invalid
- allow native-search-capable models to use built-in search without the client tool
- simplify the tools page and add direct access to web search settings
- add backend, agent, and integration tests for the new selection behavior
- split the tools page into focused components and a shared hook
- add separate Tool Library and Web Search tabs
- refresh web search settings layout and localized copy
- make provider expansion keyboard accessible
- restore wrapping for long tool names in library cards
- allow custom styling for KeyInput
* feat(web): show disabled reasons in tooltips when buttons are disabled
- Add disabled reason tooltips for model card actions (set default, delete)
- Add disabled reason tooltips for marketplace skill card install button
- Add disabled reason display for chat input when disabled
- Add internationalization support for all disabled reasons (en/zh)
- Model card: Show specific reasons when set-default or delete buttons are disabled
- Marketplace skill card: Show specific reasons when install button is disabled
- Chat composer: Show reason text below input when input is disabled
* fix: show disabled action reasons via tooltips
* fix(web): restore accessible labels for model action tooltips
- forward refs through ScrollArea so logs can access the viewport
- keep logs pinned to the bottom only when the user is already near it
- apply import and className ordering cleanup across frontend components
- add backend APIs for searching and installing registry skills, including origin metadata and concurrency-safe workspace writes
- introduce /agent/hub as the default agent entry with marketplace search and install UI
- refactor the skills and tools pages with filtering, dialogs, detail views, import validation, and updated i18n
- expand backend tests for search, install, import, rollback, and concurrent requests
