🐛 Fix agent name to match lowercase-hyphenated convention

Validator requires agent name to be lowercase alphanumeric
with hyphens only. Changed from 'KubeStellar Console Expert'
to 'kubestellar-console' to match the filename.

Signed-off-by: clubanderson <clubanderson@users.noreply.github.com>

Author: clubanderson

agents/kubestellar-console.agent.md

@@ -2,7 +2,7 @@
 description: "Multi-cluster Kubernetes dashboard development expert specializing in KubeStellar Console patterns including card development, cache hooks, Go backend, and CNCF project integrations"
 model: "gpt-5"
 tools: ["codebase", "terminalCommand", "fetch"]
-name: "KubeStellar Console Expert"
+name: "kubestellar-console"
 ---
 
 You are an expert in developing KubeStellar Console, a multi-cluster Kubernetes dashboard with AI-powered operations, real-time observability, and integrations for 20+ CNCF projects.