Add Open WebUI MCP tool registration hint to Done output

After install, remind users to add the MCP SSE URL in Open WebUI's
Admin → Settings → Tools panel (only shown when both MCP and WebUI
are selected).

https://claude.ai/code/session_012gDnantBmFTWZGCiKyjazx

laptop_full_setup.sh

@@ -1287,6 +1287,12 @@ if $INSTALL_AI; then
 fi
 echo ""
 if $INSTALL_AI; then
+    $SVC_MCP && $SVC_WEBUI && {
+        echo -e "  ${YELLOW}Add MCP to Open WebUI (one-time):${NC}"
+        echo "    Open WebUI → Admin → Settings → Tools → ＋"
+        echo "    URL:  http://$LOCAL_IP:8002/sse"
+        echo ""
+    }
     $SVC_MCP && { echo -e "  ${YELLOW}Add MCP to Claude Code:${NC}"; echo "    claude mcp add local http://$LOCAL_IP:8002/sse"; echo ""; }
     echo -e "  ${YELLOW}Add API tokens to:${NC}  $BASE/.env"
     $SVC_RAG && echo -e "  ${YELLOW}Drop PDFs into:${NC}     $BASE/papers/"