chore: update package dependencies to include @types/node and undici-types; refactor SHA-256 encryption implementation in App component

package-lock.json

@@ -10,6 +10,7 @@
       "dependencies": {
         "@melt-ui/svelte": "^0.86.6",
         "@skeletonlabs/skeleton": "^2.0.0",
+        "@types/node": "^24.0.3",
         "autoprefixer": "^10.4.17",
         "axios": "^1.6.7",
         "date-fns": "^4.1.0",
@@ -1023,6 +1024,14 @@
       "integrity": "sha512-w28IoSUCJpidD/TGviZwwMJckNESJZXFu7NBZ5YJ4mEUnNraUn9Pm8HSZm/jDF1pDWYKspWE7oVphigUPRakIQ==",
       "license": "MIT"
     },
+    "node_modules/@types/node": {
+      "version": "24.0.3",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-24.0.3.tgz",
+      "integrity": "sha512-R4I/kzCYAdRLzfiCabn9hxWfbuHS573x+r0dJMkkzThEa7pbrcDWK+9zu3e7aBOouf+rQAciqPFMnxwr0aWgKg==",
+      "dependencies": {
+        "undici-types": "~7.8.0"
+      }
+    },
     "node_modules/acorn": {
       "version": "8.14.1",
       "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.14.1.tgz",
@@ -2963,6 +2972,11 @@
         "node": ">=14.17"
       }
     },
+    "node_modules/undici-types": {
+      "version": "7.8.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.8.0.tgz",
+      "integrity": "sha512-9UJ2xGDvQ43tYyVMpuHlsgApydB8ZKfVYTsLDhXkFL/6gfkp+U8xTGdh8pMJv1SpZna0zxG1DwsKZsreLbXBxw=="
+    },
     "node_modules/update-browserslist-db": {
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/update-browserslist-db/-/update-browserslist-db-1.1.3.tgz",

package.json

@@ -20,6 +20,7 @@
   "dependencies": {
     "@melt-ui/svelte": "^0.86.6",
     "@skeletonlabs/skeleton": "^2.0.0",
+    "@types/node": "^24.0.3",
     "autoprefixer": "^10.4.17",
     "axios": "^1.6.7",
     "date-fns": "^4.1.0",

src/App.svelte

@@ -51,11 +51,15 @@
 
   // 添加 SHA-256 加密函数
   async function sha256(message: string): Promise<string> {
-    const msgBuffer = new TextEncoder().encode(message);
-    const hashBuffer = await crypto.subtle.digest('SHA-256', msgBuffer);
+  if (typeof window !== 'undefined' && window.crypto?.subtle) {
+    const hashBuffer = await crypto.subtle.digest('SHA-256', new TextEncoder().encode(message));
     const hashArray = Array.from(new Uint8Array(hashBuffer));
-    const hashHex = hashArray.map(b => b.toString(16).padStart(2, '0')).join('');
-    return hashHex;
+    return hashArray.map(b => b.toString(16).padStart(2, '0')).join('');
+  } else {
+    // Node.js 环境下用 Node 原生 crypto 模块
+    const { createHash } = await import('crypto');
+    return createHash('sha256').update(message).digest('hex');
+  }
   }
 
   // 初始化函数：检查认证状态