[Ship: Env & Modes] Exercise verify-step is wrong — Vite loads .env.local in ALL modes, so build won't fall back to .env

Hey guys, if you're doing the exercise, the instructions are actually a bit misleading based on how Vite works. The exercise says to use `.env.local` and expects the production build to fall back to `.env`. But in Vite, `.env.local` overrides EVERYTHING—both dev and build. So if you use `.env.local`, your production build will still end up with your localhost URL. To make it work the way the exercise actually wants you to, just do this: Change the local filename from `.env.local` to `.env.development.local` This forces the localhost URL to only load during `npm run dev`. Then when you run `npm run build`, it'll properly switch over to the production URL in your `.env`. Save yourselves the headache and change the filename!