feat: onboard ollama as local agent in status board (#397)

Add ollama to the AGENT_STATUS_STUB in the 3D agent panel display.
Ollama runs LLMs locally (OpenAI-compatible API at localhost:11434),
so it is marked local: true — consistent with how claude is tagged.

Refs #397

app.js

@@ -4000,6 +4000,7 @@ const AGENT_STATUS_STUB = {
     { name: 'kimi',    status: 'working', issue: 'Portal system YAML registry (#5)', prs_today: 2, local: false },
     { name: 'groq',    status: 'idle',    issue: null,                              prs_today: 0, local: false },
     { name: 'grok',    status: 'dead',    issue: null,                              prs_today: 0, local: false },
+    { name: 'ollama',  status: 'idle',    issue: null,                              prs_today: 0, local: true  },
   ]
 };