Pagination

{
  "data": [...],
  "has_more": true,
  "next_cursor": "cus_abc123"
}

# First page
curl -X GET "https://api.stigg.io/api/v1/customers?limit=10" \
  -H "X-API-KEY: your-api-key"

# Next page
curl -X GET "https://api.stigg.io/api/v1/customers?limit=10&starting_after=cus_abc123" \
  -H "X-API-KEY: your-api-key"

# Filter customers by email
curl -X GET "https://api.stigg.io/api/v1/customers?email=user@example.com" \
  -H "X-API-KEY: your-api-key"

# Filter subscriptions by status
curl -X GET "https://api.stigg.io/api/v1/subscriptions?status=active" \
  -H "X-API-KEY: your-api-key"