- add SSR-safe I18nProvider, Translate, locale hooks, catalog activation, and typed runtime APIs
- add consumer-owned Lingui configuration helpers and a CLI for locale creation, extraction, compilation, and project discovery
- add catalog read/write services plus a Vite development API plugin scoped to each consuming application
- add the portal-based I18nDevtool, message editor, dark-theme tracking, and standalone Message Studio
- document the consumer workflow and cover runtime, configuration, catalog, CLI, and Devtool behavior with tests
- add Base UI and shadcn primitives for overlays, forms, navigation, feedback, and data display
- add optimized DOM ripple hooks with ref composition and integrate the behavior into interactive controls
- add AnchoredSurface SVG geometry and arrow-aware popover, dropdown, and tooltip rendering
- extend responsive breakpoint and style utilities, declare component dependencies, and remove the redundant package ESLint config