Get assessment metadata

curl -X GET https://app.dacard.ai/api/assessment/metadata \
  -H "Authorization: Bearer $DACARD_API_KEY"

{
  "dimensions": [
    { "id": "decision_quality", "name": "Decision Quality", "function": "strategy" }
  ],
  "functions": ["strategy", "design", "development", "intelligence", "operations", "gtm"],
  "lifecycleStages": ["specify", "context", "orchestrate", "validate", "ship", "compound"],
  "segments": [
    { "key": "series_b_saas_30_100", "label": "Series B SaaS, 30-100 employees" }
  ],
  "signalTypes": ["github.deploy_frequency", "linear.cycle_time", "..."]
}