Replaces HomeNav with a new SiteNav and associated CSS module, updating navigation structure and user menu. Removes legacy API client, downloader, user model, and UserContext in favor of a new AuthContext stub for future authentication logic. Also cleans up HeroCarousel and minor CSS fixes.
Updated the footer component and its styles for improved layout and clarity, including new contact and service sections. Removed unused pages: DonateShopPage, SkillsPage, and related CSS/JS files, and cleaned up routing in App.tsx. Also streamlined Home.module.css by merging introduction styles and removing redundant imports.
Introduces a new /api/choices/ endpoint for fetching model choices with multilingual labels. Updates Django models to use 'cz#' prefix for Czech labels. Adds OpenAPI client generation via orval, refactors frontend API structure, and provides documentation and helper scripts for dynamic choices and OpenAPI usage.
