Structural cleanup

- Rename src/store/ -> src/context/ (store implies Redux, this is React Context)
- Rename services/api.jsx -> api.js (file contains no JSX)
- Delete unused Vite boilerplate: src/assets/, App.css
- Update all imports accordingly

src/main.jsx

@@ -2,7 +2,7 @@ import { StrictMode } from 'react'
 import { createRoot } from 'react-dom/client'
 import './index.css'
 import App from './App.jsx'
-import { CardProvider } from './store/CardContext'  // <-- import your context provider
+import { CardProvider } from './context/CardContext'
 
 createRoot(document.getElementById('root')).render(
   <StrictMode>