feat(web): shared loading skeleton recipes (List/Form/AppShell) + common.loading (#53)

web/src/components/ui/skeletons.stories.tsx

@@ -0,0 +1,23 @@
+import type { Meta, StoryObj } from '@storybook/react-vite'
+import { expect } from 'storybook/test'
+
+import { AppShellSkeleton, FormSkeleton, ListSkeleton } from './skeletons'
+
+const meta = {
+  component: ListSkeleton,
+  tags: ['ai-generated'],
+} satisfies Meta<typeof ListSkeleton>
+
+export default meta
+type Story = StoryObj<typeof meta>
+
+export const List: Story = {
+  render: () => <ListSkeleton rows={4} />,
+  play: async ({ canvas }) => {
+    await expect(canvas.getByRole('status')).toBeInTheDocument()
+  },
+}
+
+export const Form: Story = { render: () => <FormSkeleton /> }
+
+export const AppShellLoading: Story = { render: () => <AppShellSkeleton /> }