refactor: Refine the discovery and scan logs

[cloudxxx8]

Close #1608

If your build fails due to your commit message not passing the build checks, please review the guidelines here: https://github.com/edgexfoundry/device-sdk-go/blob/main/.github/Contributing.md

PR Checklist

Please check if your PR fulfills the following requirements:

• I am not introducing a breaking change (if you are, flag in conventional commit message with BREAKING CHANGE: describing the break)
• I am not introducing a new dependency (add notes below if you are)
• I have added unit tests for the new feature or bug fix (if not, why?)
• I have fully tested (add details below) this the new feature or bug fix (if not, why?)
• I have opened a PR for the related docs change (if not, why?)

Testing Instructions

New Dependency Instructions (If applicable)

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

Attention: Patch coverage is 0% with 4 lines in your changes missing coverage. Please review.

Project coverage is 45.76%. Comparing base (5c2a377) to head (c1d0121).

Files	Patch %	Lines
internal/controller/http/discovery.go	0.00%	4 Missing ⚠️

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1609   +/-   ##
=======================================
  Coverage   45.76%   45.76%           
=======================================
  Files          30       30           
  Lines        2954     2954           
=======================================
  Hits         1352     1352           
  Misses       1497     1497           
  Partials      105      105           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[jinlinGuan]

LGTM