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/hono/dist/middleware/serve-static/path.js

@@ -0,0 +1,18 @@
+// src/middleware/serve-static/path.ts
+var defaultJoin = (...paths) => {
+  let result = paths.filter((p) => p !== "").join("/");
+  result = result.replace(/(?<=\/)\/+/g, "");
+  const segments = result.split("/");
+  const resolved = [];
+  for (const segment of segments) {
+    if (segment === ".." && resolved.length > 0 && resolved.at(-1) !== "..") {
+      resolved.pop();
+    } else if (segment !== ".") {
+      resolved.push(segment);
+    }
+  }
+  return resolved.join("/") || ".";
+};
+export {
+  defaultJoin
+};