// Add to your agent's main loop
await fetch('/api/agents/heartbeat', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({
    agent_id: 'my-agent-001',
    name: 'My Agent',
    status: 'active',          // active | idle | error
    cost_today: 1.24,           // USD spent today
    actions_today: 142,         // actions performed
    last_action_description: 'Sent email to lead'
  })
})

curl -X POST /api/agents/heartbeat \
  -H "Content-Type: application/json" \
  -d '{
    "agent_id": "test-agent",
    "name": "Test Agent",
    "status": "active",
    "cost_today": 0.50,
    "actions_today": 10
  }'