feat(cockpit): add preconfigured_alert_ids field and deprecate enable_managed_alerts

[jremy42]

…

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 298 lines in your changes missing coverage. Please review.
✅ Project coverage is 1.67%. Comparing base (3820105) to head (e1f847e).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
internal/services/cockpit/alert_manager.go	0.00%	157 Missing ⚠️
...ervices/cockpit/preconfigured_alert_data_source.go	0.00%	134 Missing ⚠️
internal/services/cockpit/helpers_cockpit.go	0.00%	6 Missing ⚠️
provider/sdkv2.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##           master   #3470      +/-   ##
=========================================
- Coverage    1.68%   1.67%   -0.01%     
=========================================
  Files         428     429       +1     
  Lines       46749   47008     +259     
=========================================
  Hits          787     787              
- Misses      45875   46134     +259     
  Partials       87      87              

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