Serve Vite over HTTPS on :7081 using a certificate exported from dotnet dev-certs (scripts/dev-certs.ps1). Add an http launch profile on :5078 as the default backend and point the /api proxy at it, so dev runs on defaults without env vars.
Default language is English; detect the browser language (Polish -> pl, Ukrainian -> uk, otherwise en) and persist the user choice. Add full Ukrainian (Cyrillic) translations, a language switcher showing native endonyms, and keep vue-i18n, Vuetify locale, <html lang> and document.title in sync.
Add vue-router routes with accessible navigation (document title + focus management), Pinia session store, vue-i18n (PL/EN) and the default layout. Replace the landing page with routed views and remove the old MainView.
Add a SurrealDB service with a local IndexedDB-backed (indxdb://) connection for private, local-first data and an optional remote connection for sync. Initialize the local connection on app start and document the required VITE_* variables in .env.example.
Bump the client version to 0.0.1.
Add persisted theme mode (light, dark, system) with a header menu.
Rework the light and dark palettes for stronger contrast and drop the
high-contrast theme.
Rafał Tyński