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/zod/src/v3/tests/generics.test.ts

@@ -0,0 +1,48 @@
+// @ts-ignore TS6133
+import { expect, test } from "vitest";
+
+import * as z from "zod/v3";
+import { util } from "../helpers/util.js";
+
+test("generics", () => {
+  async function stripOuter<TData extends z.ZodTypeAny>(schema: TData, data: unknown) {
+    return z
+      .object({
+        nested: schema, // as z.ZodTypeAny,
+      })
+      .transform((data) => {
+        return data.nested!;
+      })
+      .parse({ nested: data });
+  }
+
+  const result = stripOuter(z.object({ a: z.string() }), { a: "asdf" });
+  util.assertEqual<typeof result, Promise<{ a: string }>>(true);
+});
+
+// test("assignability", () => {
+//   const createSchemaAndParse = <K extends string, VS extends z.ZodString>(
+//     key: K,
+//     valueSchema: VS,
+//     data: unknown
+//   ) => {
+//     const schema = z.object({
+//       [key]: valueSchema,
+//     } as { [k in K]: VS });
+//     return { [key]: valueSchema };
+//     const parsed = schema.parse(data);
+//     return parsed;
+//     // const inferred: z.infer<z.ZodObject<{ [k in K]: VS }>> = parsed;
+//     // return inferred;
+//   };
+//   const parsed = createSchemaAndParse("foo", z.string(), { foo: "" });
+//   util.assertEqual<typeof parsed, { foo: string }>(true);
+// });
+
+test("nested no undefined", () => {
+  const inner = z.string().or(z.array(z.string()));
+  const outer = z.object({ inner });
+  type outerSchema = z.infer<typeof outer>;
+  z.util.assertEqual<outerSchema, { inner: string | string[] }>(true);
+  expect(outer.safeParse({ inner: undefined }).success).toEqual(false);
+});