feat(storybook): add Storybook 8 with Tailwind v4 pulling stories from @repo/ui

apps/storybook/.storybook/main.ts

@@ -0,0 +1,20 @@
+import type { StorybookConfig } from "@storybook/react-vite";
+
+const config: StorybookConfig = {
+  framework: "@storybook/react-vite",
+  stories: ["../../../packages/ui/src/**/*.stories.@(ts|tsx)"],
+  addons: ["@storybook/addon-essentials"],
+  docs: {
+    autodocs: "tag",
+  },
+  async viteFinal(config) {
+    const { mergeConfig } = await import("vite");
+    const tailwindPlugin = await import("@tailwindcss/vite");
+
+    return mergeConfig(config, {
+      plugins: [tailwindPlugin.default()],
+    });
+  },
+};
+
+export default config;

apps/storybook/.storybook/preview.ts

@@ -0,0 +1,15 @@
+import type { Preview } from "@storybook/react";
+import "../../../packages/ui/src/styles/globals.css";
+
+const preview: Preview = {
+  parameters: {
+    controls: {
+      matchers: {
+        color: /(background|color)$/i,
+        date: /Date$/i,
+      },
+    },
+  },
+};
+
+export default preview;

apps/storybook/package.json

@@ -4,8 +4,8 @@
   "version": "0.0.0",
   "type": "module",
   "scripts": {
-    "build": "echo 'placeholder'",
-    "dev": "echo 'placeholder'",
+    "build": "storybook build",
+    "dev": "storybook dev -p 6006",
     "lint": "eslint ."
   },
   "dependencies": {
@@ -13,6 +13,14 @@
   },
   "devDependencies": {
     "@repo/eslint-config": "workspace:*",
-    "@repo/typescript-config": "workspace:*"
+    "@repo/typescript-config": "workspace:*",
+    "@storybook/addon-essentials": "^8.6.0",
+    "@storybook/react-vite": "^8.6.0",
+    "@tailwindcss/vite": "^4.1.0",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
+    "storybook": "^8.6.0",
+    "tailwindcss": "^4.1.0",
+    "vite": "^6.3.0"
   }
 }