ci: upgrade to Node.js 20 for native globalThis.crypto support

.github/workflows/release.yml

@@ -58,7 +58,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: '18'
+          node-version: '20'
           cache: 'npm'
 
       - name: Install dependencies

src/utils/crypto-adapter.ts

@@ -15,7 +15,7 @@ function getCrypto(): Crypto {
 		return window.crypto;
 	}
 
-	// Node.js/Electron environment - globalThis.crypto available in modern runtimes
+	// Node.js/Electron environment - globalThis.crypto available in Node 20+
 	if (typeof globalThis !== 'undefined' && globalThis.crypto) {
 		return globalThis.crypto;
 	}