Bulk import participants

curl -X POST "https://edushade.com/api/v1/admin/events/497f6eca-6276-4993-bfeb-53cbbbba6f08/participants/bulk/import" \
  -H "Content-Type: application/json" \
  -d '{
    "participants": [
      {
        "company": "EduTech Inc",
        "designation": "Product Manager",
        "email": "jane.smith@example.com",
        "metadata": {
          "experience_level": "intermediate",
          "interests": [
            "string"
          ]
        },
        "name": "Jane Smith",
        "phone": "+1234567892",
        "pricing_id": "123e4567-e89b-12d3-a456-426614174002",
        "utm_campaign": "bulk_invite",
        "utm_source": "email"
      }
    ],
    "skip_duplicates": true
  }'