feat: add Placeholder story with beta labeling

Author: pomfrida

documentation/how-to/BETA_RELEASE_GUIDE.md

@@ -78,28 +78,27 @@ import { Placeholder } from '@equinor/eds-core-react/next'
 
 ## Viewing Beta Components in Storybook
 
-Beta components are **visible in production Storybook** under the **"EDS 2.0"** section with "next" badges. This allows everyone to:
+Beta components are **visible in production Storybook** under the **"EDS 2.0 (beta)"** section. This allows everyone to:
 
 - 👀 See what's coming in EDS 2.0
 - 📖 Read documentation and API specs
 - 🎨 View design implementations
 - 💬 Provide feedback before stable release
 
-### Storybook Labeling Tips
+### Storybook Naming Convention
 
-Add a visual indicator in story titles so teams immediately know the component is in beta:
+Use the `EDS 2.0 (beta)` prefix in story titles so teams immediately know the component is in beta:
 
 ```typescript
 // In component stories
 export default {
   title: 'EDS 2.0 (beta)/Inputs/Button',
-  parameters: {
-    badges: ['beta', 'next'],
-  },
+  component: Button,
+  tags: ['beta'],
 }
 ```
 
-Use consistent naming (e.g., `EDS 2.0 (beta)`) so search groups every beta story together.
+The `(beta)` suffix in the title provides a clear visual indicator in the sidebar, and the `tags` property enables filtering.
 
 **To actually use these components**, you must install the beta version:
 

packages/eds-core-react/.storybook/preview.mjs

@@ -11,6 +11,7 @@ const preview = {
           'Introduction',
           'EdsProvider',
           'EDS 2.0 (beta)',
+          ['About', '*'],
           'Data Display',
           'Feedback',
           'Inputs',
@@ -26,6 +27,6 @@ const preview = {
     },
   },
 
-  tags: ['autodocs']
+  tags: ['autodocs'],
 }
 export default preview

packages/eds-core-react/src/components/next/Placeholder/Placeholder.stories.tsx

@@ -0,0 +1,37 @@
+import { Placeholder, PlaceholderProps } from './Placeholder'
+import { StoryFn, Meta } from '@storybook/react-vite'
+
+const meta: Meta<typeof Placeholder> = {
+  title: 'EDS 2.0 (beta)/Placeholder',
+  component: Placeholder,
+  tags: ['beta'],
+  parameters: {
+    docs: {
+      description: {
+        component: `
+**⚠️ Beta Component** - This component is under active development and may have breaking changes.
+
+\`\`\`bash
+npm install @equinor/eds-core-react@beta
+\`\`\`
+
+\`\`\`tsx
+import { Placeholder } from '@equinor/eds-core-react/next'
+\`\`\`
+
+This is a placeholder component for testing the \`/next\` entry point.
+It will be removed once real EDS 2.0 components are added.
+        `,
+      },
+    },
+  },
+}
+
+export default meta
+
+export const Introduction: StoryFn<PlaceholderProps> = (args) => {
+  return <Placeholder {...args} />
+}
+Introduction.args = {
+  text: 'Hello from EDS 2.0!',
+}