Add Storybook stories for the new brewery detail page components

web/frontend/stories/CommentItem.stories.tsx

@@ -0,0 +1,56 @@
+import type { Meta, StoryObj } from '@storybook/react-vite';
+import { expect, fn, userEvent, within } from 'storybook/test';
+import CommentItem from '../app/features/breweries/components/CommentItem';
+import type { FillerComment } from '../app/features/breweries/utils/filler-brewery-detail';
+
+const commentItemDescription = `A single comment row on the brewery detail page: avatar initials, username/star/timestamp, body, and a per-comment like toggle.`;
+
+const comment: FillerComment = {
+    id: '1',
+    user: 'malt_kettle',
+    initials: 'MK',
+    rating: 5,
+    time: '2 days ago',
+    text: 'The barrel-aged flanders red is worth the trip alone.',
+    likes: 12,
+    liked: false,
+};
+
+const meta = {
+    title: 'Breweries/CommentItem',
+    component: CommentItem,
+    tags: ['autodocs'],
+    args: {
+        onToggleLike: fn(),
+    },
+    parameters: {
+        layout: 'padded',
+        docs: {
+            description: {
+                component: commentItemDescription,
+            },
+        },
+    },
+} satisfies Meta<typeof CommentItem>;
+
+export default meta;
+type Story = StoryObj<typeof meta>;
+
+export const Unliked: Story = {
+    args: { comment },
+    play: async ({ args, canvasElement }) => {
+        const canvas = within(canvasElement);
+        await expect(canvas.getByText('malt_kettle')).toBeInTheDocument();
+        const likeButton = canvas.getByRole('button', { name: /12 likes/i });
+        await userEvent.click(likeButton);
+        await expect(args.onToggleLike).toHaveBeenCalledWith('1');
+    },
+};
+
+export const Liked: Story = {
+    args: { comment: { ...comment, liked: true } },
+    play: async ({ canvasElement }) => {
+        const canvas = within(canvasElement);
+        await expect(canvas.getByRole('button', { name: /13 likes/i })).toBeInTheDocument();
+    },
+};