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/refs/json-schema-2019-09/index.ts

@@ -0,0 +1,28 @@
+import type Ajv from "../../core"
+import type {AnySchemaObject} from "../../types"
+import * as metaSchema from "./schema.json"
+import * as applicator from "./meta/applicator.json"
+import * as content from "./meta/content.json"
+import * as core from "./meta/core.json"
+import * as format from "./meta/format.json"
+import * as metadata from "./meta/meta-data.json"
+import * as validation from "./meta/validation.json"
+
+const META_SUPPORT_DATA = ["/properties"]
+
+export default function addMetaSchema2019(this: Ajv, $data?: boolean): Ajv {
+  ;[
+    metaSchema,
+    applicator,
+    content,
+    core,
+    with$data(this, format),
+    metadata,
+    with$data(this, validation),
+  ].forEach((sch) => this.addMetaSchema(sch, undefined, false))
+  return this
+
+  function with$data(ajv: Ajv, sch: AnySchemaObject): AnySchemaObject {
+    return $data ? ajv.$dataMetaSchema(sch, META_SUPPORT_DATA) : sch
+  }
+}