POST /ai/portfolio/performance HTTP/1.1
Host: api.glowb.com
Content-Type: application/json

{
  "snsData": [...],
  "campaigns": [...]
}

curl -X POST "https://api.glowb.com/ai/portfolio/performance" \
  -H "Content-Type: application/json" \
  -d '{
    "snsData": [...],
    "campaigns": [...]
  }'

const response = await fetch('/ai/portfolio/performance', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    snsData: [...],
    campaigns: [...]
  })
});
const performanceText = await response.json();