feat: add AGENTS.md for all packages and apps (9 files)

apps/storybook/AGENTS.md

@@ -0,0 +1,24 @@
+# apps/storybook — Centralized Storybook
+
+Pulls stories from `packages/ui/src/**/*.stories.tsx`. Uses `@storybook/react-vite` with `@tailwindcss/vite` plugin.
+
+## Development
+
+```bash
+pnpm dev --filter @repo/storybook  # Starts on port 6006
+```
+
+## Configuration
+
+- `.storybook/main.ts` — Framework config, story globs, Tailwind vite plugin
+- `.storybook/preview.ts` — Global CSS import, control matchers
+
+## Story Organization
+
+Stories are organized by Atomic Design level via title:
+- `"Atoms/Button"`, `"Molecules/FormField"`, `"Organisms/DataTable"`
+
+## MCP
+
+When running, Storybook MCP is available at `http://localhost:6006/mcp`.
+Install `@storybook/addon-mcp` to enable.