Update workflow configuration

{
  "singlePromptConfig": {
    "prompt": "You are a helpful AI assistant that can help users with various tasks.",
    "tools": [
      {
        "name": "end_call",
        "description": "End the conversation when the user is satisfied",
        "transferNumber": "+1234567890",
        "url": "https://api.example.com/orders",
        "method": "GET",
        "headers": {
          "Authorization": "Bearer TOKEN",
          "Content-Type": "application/json"
        },
        "headersArray": [
          {
            "key": "Authorization",
            "value": "Bearer TOKEN"
          }
        ],
        "queryParams": [
          {
            "key": "id",
            "value": "{{order_id}}"
          }
        ],
        "requestBody": "{\"customer_id\": \"{{customer_id}}\"}",
        "responseVariables": [
          {
            "variableName": "orderStatus",
            "jsonPath": "$.data.status"
          }
        ],
        "auth": {
          "token": "ORDER_API_TOKEN",
          "name": "X-API-Key",
          "value": "SEARCH_API_KEY"
        },
        "variablesExtractionSchema": [
          {
            "name": "customer_name",
            "description": "The customer's full name",
            "values": [
              "satisfied",
              "unsatisfied",
              "neutral"
            ]
          }
        ],
        "knowledgeBaseId": "60d0fe4f5311236168a109ca",
        "fillerPhrases": [
          "Let me check that for you",
          "One moment please"
        ]
      }
    ],
    "toolRefs": [
      "tool_ab12cd34ef56gh78ij90kl12"
    ]
  }
}