Rename skill to uiuxmax

uiuxmax/agents/openai.yaml

@@ -0,0 +1,4 @@
+interface:
+  display_name: "UI UX Pro Max"
+  short_description: "Match web UI requests to 39 demo prompts."
+  default_prompt: "Pick the closest demo prompt and adapt it to the requested website, then outline the UI structure and key sections."