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/ajv/dist/runtime/equal.js

@@ -0,0 +1,7 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+// https://github.com/ajv-validator/ajv/issues/889
+const equal = require("fast-deep-equal");
+equal.code = 'require("ajv/dist/runtime/equal").default';
+exports.default = equal;
+//# sourceMappingURL=equal.js.map