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/jtd/optionalProperties.ts

@@ -0,0 +1,15 @@
+import type {CodeKeywordDefinition} from "../../types"
+import type {KeywordCxt} from "../../compile/validate"
+import {validateProperties, error} from "./properties"
+
+const def: CodeKeywordDefinition = {
+  keyword: "optionalProperties",
+  schemaType: "object",
+  error,
+  code(cxt: KeywordCxt) {
+    if (cxt.parentSchema.properties) return
+    validateProperties(cxt)
+  },
+}
+
+export default def