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/vocabularies/applicator/additionalProperties.d.ts

@@ -0,0 +1,6 @@
+import type { CodeKeywordDefinition, AddedKeywordDefinition, ErrorObject, AnySchema } from "../../types";
+export type AdditionalPropertiesError = ErrorObject<"additionalProperties", {
+    additionalProperty: string;
+}, AnySchema>;
+declare const def: CodeKeywordDefinition & AddedKeywordDefinition;
+export default def;