fix(cli): rename mcp server section from expo to nuxt-ui in ruler addon

Author: AmanVarshney01

apps/cli/templates/addons/ruler/.ruler/ruler.toml.hbs

@@ -64,7 +64,7 @@ url = "https://mcp.chonkie.ai/better-auth/better-auth-builder/mcp"
 {{/if}}
 
 {{#if (includes frontend "nuxt")}}
-[mcp_servers.expo]
+[mcp_servers.nuxt-ui]
 url = "https://ui.nuxt.com/mcp"
 {{/if}}