키 관리 로직을 Keyring으로 통합하여 하드코딩된 MEK 및 HSK 버전을 제거하고 Svelte Store를 Rune으로 대체

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/routes/(fullscreen)/client/pending/+page.svelte

@@ -3,25 +3,24 @@
   import { goto } from "$app/navigation";
   import { FullscreenDiv } from "#lib/components/atoms/index.js";
   import { TitledDiv } from "#lib/components/molecules/index.js";
-  import { clientKeyStore, masterKeyStore } from "#lib/stores/index.js";
-  import { generatePublicKeyFingerprint, requestMasterKeyDownload } from "./service";
+  import {
+    downloadMasterKeys,
+    generatePublicKeyFingerprint,
+    keyring,
+  } from "#lib/client/keys/index.js";
 
   import IconFingerprint from "~icons/material-symbols/fingerprint";
 
   let { data } = $props();
 
   let fingerprint = $derived(
-    $clientKeyStore
-      ? generatePublicKeyFingerprint($clientKeyStore.encryptKey, $clientKeyStore.verifyKey)
+    keyring.clientKeys
+      ? generatePublicKeyFingerprint(keyring.clientKeys.encryptKey, keyring.clientKeys.verifyKey)
       : undefined,
   );
 
   onMount(async () => {
-    if (
-      $masterKeyStore ||
-      ($clientKeyStore &&
-        (await requestMasterKeyDownload($clientKeyStore.decryptKey, $clientKeyStore.verifyKey)))
-    ) {
+    if (keyring.hasMasterKeys || (keyring.clientKeys && (await downloadMasterKeys()))) {
       await goto(data.redirectPath, { replace: true });
     }
   });