- Add page title (h1) to all main pages for consistent hierarchy
- Wrap page content in container/content div structure
- Handle 404 error for unsupported OAuth excluded models API
- Add cache price input field in usage page model pricing
- Add upgrade required i18n messages for older CPA versions
- Import mixins in page-level SCSS modules
- Add useModelsStore with 30s cache for model list to reduce API calls
- Refactor SystemPage to use cached models from store
- Shorten ConfigPage search placeholder to prevent text truncation