Returns a CSV file for one curated indicator.
Endpoint
GET /api/indicators/{slug}/download
Requires a signed-in Research or Pro account while paywalls are enabled. The source-rights compliance check still runs after plan access is verified.
Response
Successful responses are served as text/csv attachments with Cache-Control: no-store.
If the caller is signed out, the endpoint returns 401 authentication_required.
If the caller is signed in below Research, it returns 403 plan_required.