feat: Publish System Events for device discovery and profile scan progress

[jinlinGuan]

close #1611

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PR Checklist

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• 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?)

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Codecov Report

Attention: Patch coverage is 0% with 26 lines in your changes missing coverage. Please review.

Project coverage is 45.50%. Comparing base (a573d62) to head (3e6ea37).

Files	Patch %	Lines
internal/controller/http/discovery.go	0.00%	19 Missing ⚠️
pkg/service/service.go	0.00%	7 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1616      +/-   ##
==========================================
- Coverage   45.70%   45.50%   -0.21%     
==========================================
  Files          30       30              
  Lines        2958     2971      +13     
==========================================
  Hits         1352     1352              
- Misses       1501     1514      +13     
  Partials      105      105              

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[cloudxxx8]

LGTM