fix: Add debounced Undo/Redo system to avoid character-by-character history

- Add debounced state updates for title and content (500ms delay)
- Immediate UI updates with delayed history saving
- Prevent one-letter-per-undo issue
- Add cleanup for debounce timers on unmount

mcp-server/node_modules/jose/dist/webapi/lib/cek.js

@@ -0,0 +1,19 @@
+import { JOSENotSupported } from '../util/errors.js';
+export function cekLength(alg) {
+    switch (alg) {
+        case 'A128GCM':
+            return 128;
+        case 'A192GCM':
+            return 192;
+        case 'A256GCM':
+        case 'A128CBC-HS256':
+            return 256;
+        case 'A192CBC-HS384':
+            return 384;
+        case 'A256CBC-HS512':
+            return 512;
+        default:
+            throw new JOSENotSupported(`Unsupported JWE Algorithm: ${alg}`);
+    }
+}
+export const generateCek = (alg) => crypto.getRandomValues(new Uint8Array(cekLength(alg) >> 3));