added robots.txt and ai.txt

src/routes/+layout.svelte

@@ -5,6 +5,10 @@
 	let { children } = $props();
 </script>
 
+<svelte:head>
+    <meta name="robots" content="noai, noimageai">
+</svelte:head>
+
 <div class="waters"></div>
 <div class="all-content-container">
     <Header />