Get backlog

curl -X GET "https://app.dacard.ai/api/backlog?productId=prod_abc&function=design" \
  -H "Authorization: Bearer $DACARD_API_KEY"

{
  "moves": [
    {
      "id": "mv_xyz",
      "title": "Hire a senior designer",
      "function": "design",
      "lifecycleStage": "specify",
      "status": "in_flight",
      "owner": { "userId": "user_a", "email": "founder@acme.com" },
      "effort": "M",
      "evidence": [...]
    }
  ]
}