Create a Linear issue

curl -X POST https://app.dacard.ai/api/linear/create-issue \
  -H "Authorization: Bearer $DACARD_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "teamId": "lin_team_xyz",
    "title": "Audit the onboarding email cadence",
    "description": "Day 7 email is opening 38% but click-through is 4%. Worth a copy pass.",
    "labelIds": ["lbl_dac_coaching"]
  }'