feat: add Supabase authentication context and routes

- Implemented Supabase authentication context in `supabase.tsx` for managing user login and logout.
- Created a new SVG logo file for branding.
- Set up main application entry point in `main.tsx` with router integration.
- Added web vitals reporting in `reportWebVitals.ts`.
- Generated route tree in `routeTree.gen.ts` for application routing.
- Established root route in `__root.tsx` with TanStack Router Devtools integration.
- Created authenticated route in `_authenticated.tsx` to protect routes.
- Developed planes route under authenticated section in `planes.tsx`.
- Implemented login route with form handling in `login.tsx`.
- Added index route with welcome message in `index.tsx`.
- Included basic styles in `styles.css`.
- Configured TypeScript settings in `tsconfig.json`.
- Set up Vite configuration with React and TanStack Router plugins in `vite.config.ts`.

src/routes/__root.tsx

@@ -0,0 +1,27 @@
+import { Outlet, createRootRouteWithContext } from '@tanstack/react-router'
+import { TanStackRouterDevtoolsPanel } from '@tanstack/react-router-devtools'
+import { TanstackDevtools } from '@tanstack/react-devtools'
+import type { SupabaseAuthState } from '@/auth/supabase'
+
+interface AuthContext {
+  auth: SupabaseAuthState
+}
+
+export const Route = createRootRouteWithContext<AuthContext>()({
+  component: () => (
+    <>
+      <Outlet />
+      <TanstackDevtools
+        config={{
+          position: 'bottom-left',
+        }}
+        plugins={[
+          {
+            name: 'Tanstack Router',
+            render: <TanStackRouterDevtoolsPanel />,
+          },
+        ]}
+      />
+    </>
+  ),
+})