feat: add root documentation (CLAUDE.md, AGENTS.md, .mcp.json)

.mcp.json

@@ -0,0 +1,13 @@
+{
+  "mcpServers": {
+    "storybook": {
+      "type": "http",
+      "url": "http://localhost:6006/mcp"
+    },
+    "playwright": {
+      "type": "stdio",
+      "command": "npx",
+      "args": ["@anthropic-ai/playwright-mcp"]
+    }
+  }
+}