A modern React + Vite app that loads CSSBattle battle and daily targets from Supabase, with a responsive grid, theme switch, and client-side cache.

• React 18
• Vite 5
• Supabase JavaScript client
• ESLint 9 (flat config)

• Node.js 20 or newer
• npm 10 or newer

Copy-Item .env.example .env
# then set VITE_SUPABASE_URL and VITE_SUPABASE_ANON_KEY
npm install
npm run dev

npm run dev      # start development server
npm run build    # create production build in dist/
npm run preview  # preview the production build locally
npm run lint     # run ESLint

• Source tables: battle_targets, daily_targets
• Mode switch in UI: Battle / Daily
• Cache strategy: localStorage per mode
• Revalidation windows (UTC): 01:00 and 18:00

• Use only the Supabase anon key in frontend apps.
• Never expose the Supabase service role key in this project.