feat(artifact): add /artifacts slash command entry

Co-Authored-By: glm-5.2 <zai-org@claude-code-best.win>

Author: claude-code-best

src/commands/artifacts/artifacts.tsx

@@ -0,0 +1,11 @@
+import * as React from 'react';
+import type { LocalJSXCommandOnDone } from 'src/types/command.js';
+import type { ToolUseContext } from 'src/Tool.js';
+import { ArtifactsMenu } from './ArtifactsMenu.js';
+import { extractArtifacts } from './scanner.js';
+
+export async function call(onDone: LocalJSXCommandOnDone, context: ToolUseContext): Promise<React.ReactNode> {
+  const messages = context.messages ?? [];
+  const artifacts = extractArtifacts(messages);
+  return <ArtifactsMenu artifacts={artifacts} onExit={onDone} />;
+}

src/commands/artifacts/index.ts

@@ -0,0 +1,13 @@
+import type { Command } from '../../commands.js'
+
+const artifacts = {
+  type: 'local-jsx',
+  name: 'artifacts',
+  description:
+    'List HTML artifacts uploaded to cloud-artifacts in this session',
+  isEnabled: () => true,
+  userFacingName: () => 'Artifacts',
+  load: () => import('./artifacts.js'),
+} satisfies Command
+
+export default artifacts