Slack Error Notification Handler

[
  {
    "data": {
      "nodeType": "integration"
    },
    "event": "node_start",
    "nodeId": "eb305364-de39-4b9e-ad6e-eea54ebf712d",
    "timestamp": 1780870663043
  },
  {
    "data": {
      "service": "slack",
      "resolved": true
    },
    "event": "credential_access",
    "nodeId": "_context",
    "timestamp": 1780870663043
  },
  {
    "data": {
      "url": "https://slack.com/api/conversations.history?channel=C0B6WTD21QX&limit=5",
      "method": "GET"
    },
    "event": "http_fetch",
    "nodeId": "_context",
    "timestamp": 1780870663043
  },
  {
    "data": {
      "status": 200
    },
    "event": "slack.read",
    "nodeId": "integration",
    "timestamp": 1780870663317
  },
  {
    "data": {
      "mode": "read",
      "status": "ok",
      "service": "slack",
      "latencyMs": 274,
      "operation": "read"
    },
    "event": "integration_call",
    "nodeId": "integration",
    "timestamp": 1780870663317
  },
  {
    "data": {
      "status": "ok",
      "nodeType": "integration"
    },
    "event": "node_end",
    "nodeId": "eb305364-de39-4b9e-ad6e-eea54ebf712d",
    "timestamp": 1780870663317
  },
  {
    "data": {
      "nodeType": "trigger"
    },
    "event": "node_start",
    "nodeId": "9babcea6-ac7c-4a75-bd4c-f3d6a54c0ec7",
    "timestamp": 1780870663322
  },
  {
    "data": {
      "kind": "n8n-nodes-base.errorTrigger"
    },
    "event": "seeded",
    "nodeId": "trigger",
    "timestamp": 1780870663322
  },
  {
    "data": {
      "status": "ok",
      "nodeType": "trigger"
    },
    "event": "node_end",
    "nodeId": "9babcea6-ac7c-4a75-bd4c-f3d6a54c0ec7",
    "timestamp": 1780870663322
  },
  {
    "data": {
      "nodeType": "set"
    },
    "event": "node_start",
    "nodeId": "134acca3-d4a7-485c-ab45-5a2721ed6a2c",
    "timestamp": 1780870663325
  },
  {
    "data": {
      "inputKeys": [],
      "mergeKeys": [
        "string"
      ]
    },
    "event": "merged",
    "nodeId": "set",
    "timestamp": 1780870663325
  },
  {
    "data": {
      "status": "ok",
      "nodeType": "set"
    },
    "event": "node_end",
    "nodeId": "134acca3-d4a7-485c-ab45-5a2721ed6a2c",
    "timestamp": 1780870663325
  },
  {
    "data": {
      "nodeType": "passthrough"
    },
    "event": "node_start",
    "nodeId": "error-ae938e5e",
    "timestamp": 1780870663326
  },
  {
    "data": {},
    "event": "noOp",
    "nodeId": "passthrough",
    "timestamp": 1780870663326
  },
  {
    "data": {
      "status": "ok",
      "nodeType": "passthrough"
    },
    "event": "node_end",
    "nodeId": "error-ae938e5e",
    "timestamp": 1780870663326
  }
]