@better-auth/cli doesn't understand SvelteKit path aliases
When trying to run the CLI in my SvelteKit app, I get errors saying: 
ERROR [Better Auth]: [#better-auth]: Couldn't read your auth config. Error: Cannot find module '$app/environment', and similar, all referring to Svelte's fancy path aliases. Some of these can be worked around, by using process.env, for example. But some of them are just features of svelte that I'm using 