Add smoke test endpoint

[mjh1]

A new smoketest endpoint for use internally when verifying new pipelines.

[codecov]

Codecov Report

Attention: Patch coverage is 3.03030% with 64 lines in your changes missing coverage. Please review.

Project coverage is 33.62978%. Comparing base (3f3aef3) to head (81c9230).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
server/ai_mediaserver.go	3.03030%	63 Missing and 1 partial ⚠️

Additional details and impacted files

@@                 Coverage Diff                 @@
##              master       #3368         +/-   ##
===================================================
- Coverage   33.68632%   33.62978%   -0.05654%     
===================================================
  Files            141         141                 
  Lines          37490       37556         +66     
===================================================
+ Hits           12629       12630          +1     
- Misses         24139       24203         +64     
- Partials         722         723          +1     

Files with missing lines	Coverage Δ
server/ai_mediaserver.go	7.40103% <3.03030%> (-0.56014%)	⬇️

... and 1 file with indirect coverage changes

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Files with missing lines	Coverage Δ
server/ai_mediaserver.go	7.40103% <3.03030%> (-0.56014%)	⬇️

... and 1 file with indirect coverage changes

[gioelecerati]

LGTM