ai/live: Configure parameters from auth callback

[j0sh]

Adds a JSON schema for the auth callback, wires it up to the rest of the inference params and incorporates a couple more of the query strings. Take note of the field naming - pipeline and pipeline_params , happy to adjust those if preferred - eg, to match the existing model_id fields

Also some minor refactor to move the AI fields for aiRequestParams into its own struct to keep things tidy since I think we will be adding a bunch more things there later.

[codecov]

Codecov Report

Attention: Patch coverage is 4.83871% with 59 lines in your changes missing coverage. Please review.

Project coverage is 34.60438%. Comparing base (cf051dd) to head (22ebe6f).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
server/ai_mediaserver.go	0.00000%	42 Missing ⚠️
server/auth.go	21.42857%	9 Missing and 2 partials ⚠️
server/ai_live_video.go	0.00000%	5 Missing ⚠️
server/ai_process.go	0.00000%	1 Missing ⚠️

Additional details and impacted files

@@                 Coverage Diff                 @@
##              master       #3264         +/-   ##
===================================================
- Coverage   34.63487%   34.60438%   -0.03049%     
===================================================
  Files            136         136                 
  Lines          36316       36348         +32     
===================================================
  Hits           12578       12578                 
- Misses         23025       23055         +30     
- Partials         713         715          +2     

Files with missing lines	Coverage Δ
server/ai_process.go	0.61082% <0.00000%> (ø)
server/ai_live_video.go	0.00000% <0.00000%> (ø)
server/auth.go	63.82979% <21.42857%> (-4.77486%)	⬇️
server/ai_mediaserver.go	8.06452% <0.00000%> (-0.45130%)	⬇️

... and 1 file with indirect coverage changes

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Files with missing lines	Coverage Δ
server/ai_process.go	0.61082% <0.00000%> (ø)
server/ai_live_video.go	0.00000% <0.00000%> (ø)
server/auth.go	63.82979% <21.42857%> (-4.77486%)	⬇️
server/ai_mediaserver.go	8.06452% <0.00000%> (-0.45130%)	⬇️

... and 1 file with indirect coverage changes

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[eliteprox]

LGTM! Tested with local authwebhook values and works great

[j0sh]

MacOS builds are broken because of some brew thing, merging for now to unblock #3263