암호 키 유무에 따른 자동 리다이렉션 구현

src/routes/+layout.svelte

@@ -1,6 +1,22 @@
 <script lang="ts">
+  import { onMount } from "svelte";
+  import { goto } from "$app/navigation";
+  import { getKeyPairFromIndexedDB } from "$lib/indexedDB";
+  import { keyPairStore } from "$lib/stores";
   import "../app.css";
+
   let { children } = $props();
+
+  onMount(async () => {
+    const { pubKey, privKey } = await getKeyPairFromIndexedDB();
+    if (pubKey && privKey) {
+      keyPairStore.set({ publicKey: pubKey, privateKey: privKey });
+    } else if (!["/auth", "/key/generate"].some((path) => location.pathname.startsWith(path))) {
+      await goto(
+        "/key/generate?redirect=" + encodeURIComponent(location.pathname + location.search),
+      );
+    }
+  });
 </script>
 
 {@render children()}