feat: update API client and remove unused services; enhance error handling and configuration

src/pages/AuthCallbackPage.tsx

@@ -20,15 +20,11 @@ export function AuthCallbackPage() {
           throw new Error('No authorization code received')
         }
 
-        console.log('Exchanging OAuth code for tokens...')
-        
         // Exchange the temporary code for proper auth cookies
         const result = await api.auth.exchangeOAuthToken({ code })
-        console.log('Token exchange successful:', result)
 
         // Now get the user info
         const user = await api.auth.getMe()
-        console.log('User info retrieved:', user)
         
         // Update auth context
         if (setUser) setUser(user)