docs: fix TypeScript reducer argument examples

docs/docs/00200-core-concepts/00600-clients/00200-codegen.md

@@ -189,10 +189,10 @@ For example, a `create_user` reducer becomes:
 
 ```typescript
 // Call the reducer
-conn.reducers.createUser(name, email);
+conn.reducers.createUser({ name, email });
 
 // Register a callback to observe reducer invocations
-conn.reducers.onCreateUser((ctx, name, email) => {
+conn.reducers.onCreateUser((ctx, { name, email }) => {
   console.log(`User created: ${name}`);
 });
 ```

docs/docs/00200-core-concepts/00600-clients/00700-typescript-reference.md

@@ -1088,7 +1088,7 @@ function MyComponent() {
   return (
     <div>
       <p>Connected as: {identity?.toHexString()}</p>
-      <button onClick={() => conn?.reducers.createPlayer('Alice')}>
+      <button onClick={() => conn?.reducers.createPlayer({ name: 'Alice' })}>
         Create Player
       </button>
     </div>
@@ -1136,7 +1136,7 @@ import { useReducer } from 'spacetimedb/react';
 import { reducers } from './module_bindings';
 
 const createPlayer = useReducer(reducers.createPlayer);
-createPlayer('Alice');
+createPlayer({ name: 'Alice' });
 ```
 
 `useReducer` returns a function that calls the generated reducer. Calls made before the connection is ready are queued and flushed once the connection is established.