converted to proper npm sveltekit project

src/lib/toast.svelte.ts

@@ -0,0 +1,15 @@
+// Tiny shared toast controller. Import `toast` anywhere and call toast.show('...').
+class ToastController {
+	message = $state('');
+	visible = $state(false);
+	#timer: ReturnType<typeof setTimeout> | null = null;
+
+	show(msg: string, ms = 2200): void {
+		this.message = msg;
+		this.visible = true;
+		if (this.#timer) clearTimeout(this.#timer);
+		this.#timer = setTimeout(() => (this.visible = false), ms);
+	}
+}
+
+export const toast = new ToastController();