curl --request DELETE \
  --url https://{appid}.api-{region}.cometchat.io/v3/ai-agents/agent-builder/knowledge-base/uploads/{uniqueId} \
  --header 'apikey: <api-key>'

{
  "success": true,
  "message": "File and all associated data deleted successfully",
  "data": {
    "uploadId": "550e8400-e29b-41d4-a716-446655440000",
    "fileName": "document.pdf",
    "deletedFromAgents": true,
    "vectorsDeleted": true,
    "s3FileDeleted": true
  }
}