react: rename ViewOptions to UseViewOptions, fix error types

Rename the React hook's ViewOptions to UseViewOptions to avoid a name
collision with the internal ViewOptions in view.ts. Use Ably.ErrorInfo
instead of plain Error for the view-unavailable guard in useView's
send/regenerate/edit callbacks.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: mschristensen

src/react/index.ts

@@ -6,5 +6,5 @@ export { useRegenerate } from './use-regenerate.js';
 export { useSend } from './use-send.js';
 export type { TreeHandle } from './use-tree.js';
 export { useTree } from './use-tree.js';
-export type { ViewHandle, ViewOptions } from './use-view.js';
+export type { UseViewOptions, ViewHandle } from './use-view.js';
 export { useView } from './use-view.js';

src/react/use-view.ts

@@ -14,7 +14,7 @@ import type { ActiveTurn, ClientTransport, SendOptions, TreeNode, View } from '.
 import { ErrorCode } from '../errors.js';
 
 /** Options for configuring the view's initial load behavior. */
-export interface ViewOptions {
+export interface UseViewOptions {
   /** Maximum number of older messages to load per page. Defaults to 100. */
   limit?: number;
 }
@@ -71,7 +71,7 @@ const resolveView = <TEvent, TMessage>(
  */
 export const useView = <TEvent, TMessage>(
   source: ClientTransport<TEvent, TMessage> | View<TEvent, TMessage> | null | undefined,
-  options?: ViewOptions | null,
+  options?: UseViewOptions | null,
 ): ViewHandle<TEvent, TMessage> => {
   const view = resolveView(source ?? undefined);