Send a kafka event when no orchestrators available

[mjh1]

So that we can track this in a dashboard more easily

[codecov]

Codecov Report

❌ Patch coverage is 0% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 31.58526%. Comparing base (4044283) to head (711e531).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
server/ai_process.go	0.00000%	11 Missing ⚠️

Additional details and impacted files

@@                 Coverage Diff                 @@
##              master       #3709         +/-   ##
===================================================
- Coverage   31.59467%   31.58526%   -0.00941%     
===================================================
  Files            157         157                 
  Lines          47527       47538         +11     
===================================================
- Hits           15016       15015          -1     
- Misses         31617       31628         +11     
- Partials         894         895          +1     

Files with missing lines	Coverage Δ
server/ai_process.go	1.65975% <0.00000%> (-0.01529%)	⬇️

... and 3 files with indirect coverage changes

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Files with missing lines	Coverage Δ
server/ai_process.go	1.65975% <0.00000%> (-0.01529%)	⬇️

... and 3 files with indirect coverage changes

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