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/lib/vocabularies/next.ts

@@ -0,0 +1,8 @@
+import type {Vocabulary} from "../types"
+import dependentRequired from "./validation/dependentRequired"
+import dependentSchemas from "./applicator/dependentSchemas"
+import limitContains from "./validation/limitContains"
+
+const next: Vocabulary = [dependentRequired, dependentSchemas, limitContains]
+
+export default next