src copy from Markus

tatort/src/app.d.ts

@@ -1,13 +1,14 @@
-// See https://svelte.dev/docs/kit/types#app.d.ts
+// See https://kit.svelte.dev/docs/types#app
 // for information about these interfaces
 declare global {
 	namespace App {
 		// interface Error {}
-		// interface Locals {}
+		interface Locals {
+			user: any
+		}
 		// interface PageData {}
-		// interface PageState {}
 		// interface Platform {}
 	}
 }
 
-export {};
+export { };