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/zod-to-json-schema/dist/esm/getRelativePath.js

@@ -0,0 +1,8 @@
+export const getRelativePath = (pathA, pathB) => {
+    let i = 0;
+    for (; i < pathA.length && i < pathB.length; i++) {
+        if (pathA[i] !== pathB[i])
+            break;
+    }
+    return [(pathA.length - i).toString(), ...pathB.slice(i)].join("/");
+};