Refactor SvelteKit app to unified webhook relay with WebSocket support

Co-authored-by: lukeslakemail <lukeslakemail@gmail.com>

sveltekit-app/svelte.config.js

@@ -1,4 +1,4 @@
-import adapter from '@sveltejs/adapter-auto';
+import adapter from '@sveltejs/adapter-node';
 import { vitePreprocess } from '@sveltejs/vite-plugin-svelte';
 
 /** @type {import('@sveltejs/kit').Config} */
@@ -11,7 +11,12 @@ const config = {
 		// adapter-auto only supports some environments, see https://kit.svelte.dev/docs/adapter-auto for a list.
 		// If your environment is not supported or you settled on a specific environment, switch out the adapter.
 		// See https://kit.svelte.dev/docs/adapters for more information about adapters.
-		adapter: adapter()
+		adapter: adapter(),
+		
+		// Enable WebSocket support
+		alias: {
+			$lib: './src/lib'
+		}
 	}
 };