fix(examples/sveltekit): use node provider with bun install

Railpack doesn't have a bun provider, but we can use node provider
and override the install command to use bun.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: robelest

examples/sveltekit/railpack.json

@@ -1,4 +1,12 @@
 {
 	"$schema": "https://schema.railpack.com",
-	"provider": "bun"
+	"provider": "node",
+	"packages": {
+		"bun": "latest"
+	},
+	"steps": {
+		"install": {
+			"commands": ["bun install"]
+		}
+	}
 }

examples/sveltekit/src/convex/auth.ts

@@ -6,7 +6,7 @@ import { query } from "./_generated/server";
 import { betterAuth } from "better-auth/minimal";
 import authConfig from "./auth.config";
 
-const siteUrl = process.env.SITE_URL!;
+const siteUrl = process.env.PUBLIC_CONVEX_SITE_URL!;
 
 export const authComponent = createClient<DataModel>(components.betterAuth);
 

examples/sveltekit/vite.config.ts

@@ -17,6 +17,10 @@ export default defineConfig({
 	},
 	resolve: {
 		dedupe: ["yjs", "lib0", "y-protocols"],
+		alias: {
+			// Stub the worker import during SSR (Node.js can't handle ?worker suffix)
+			"@trestleinc/replicate/worker?worker": "@trestleinc/replicate/worker",
+		},
 	},
 	server: {
 		headers: {