fix(logging): circular JSON errors in Winston logs by summarizing HTTP/Axios objects

[elaine-mattos]

Description

After the recent logging changes in PR #1340, Winston started throwing Converting circular structure to JSON errors when logging HTTP requests/responses or Axios errors. This was caused by req, res, and config objects containing circular references that cannot be stringified directly.

Changes made

1. Introduced a new sanitizeMeta Winston format to safely summarize log metadata.
2. Summarizes the following objects instead of logging them directly:
   • req → only logs { method, url, requestId, correlationId }
   • res → only logs { statusCode }
   • config (Axios request config) → only logs { method, url, headers['X-Api-Key'] }
3. Generic request/response aliases are replaced with "[request omitted]" / "[response omitted]" when no req/res exist.
4. Keeps stack traces and main error message intact.

Log examples

Before this fix:

2026-01-02T16:55:40.936Z [error]: SvcRequestFailure: /status/toolsranperday Converting circular structure to JSON
Exception: 
Error: SvcRequestFailure: /status/toolsranperday Converting circular structure to JSON
    --> starting at object with constructor 'ClientRequest'
    |     property 'res' -> object with constructor 'IncomingMessage'
    --- property 'req' closes the circle
GET /status/toolsranperday 500 31.963 ms

After this fix:

2026-01-02T16:52:49.612Z [error]: Status service failed for toolsranperday Request failed with status code 404
{
  "name": "AxiosError",
  "code": "ERR_BAD_REQUEST",
  "config": {
    "method": "post",
    "url": "https://api.applicationinsights.io/v1/apps/<APP_ID>/query",
    "headers": {
      "Accept": "application/json, text/plain, */*",
      "Content-Type": "application/json; charset=utf-8",
      "User-Agent": "clearlydefined.io crawler",
      "X-Api-Key": "<REDACTED>",
      "Content-Length": "349",
      "Accept-Encoding": "gzip, compress, deflate, br"
    }
  },
  "request": "[request omitted]",
  "response": "[response omitted]",
  "status": 404,
  "statusCode": 404,
  "stack": "AxiosError: Request failed with status code 404\n    at async callFetch (...) \n    at async StatusService._toolsranperday (...) \n    at async StatusService.get (...) \n    at async getRequests (...)"
}