Ensure the Type Ahead experiment supports provider/model overrides and Guidelines

[dkotter]

What?

Ensure the Type Ahead experiment supports the ability to override the Provider and Model used from the developer settings and ensure any related Guidelines are pulled into the system instructions.

Why?

Recently merged in #151 but realized after the fact that there are a few new things we've implemented in other experiments that didn't exist when that PR was worked on, namely the ability to set the Provider and Model from our developer settings and integration with Guidelines. This PR updates both.

How?

• Use the set_provider_model_preference method to ensure our Provider and Model can be filtered by our developer settings
• Use the guideline_categories to ensure Guidelines are pulled in to the system instructions

Use of AI Tools

None

Testing Instructions

Same testing instructions from #151 for the most part, just ensuring the Type Ahead experiment still works

Changelog Entry

n/a, will be pulled from #151

[github-actions]

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[codecov]

Codecov Report

❌ Patch coverage is 22.22222% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 76.48%. Comparing base (56cef56) to head (20af03f).
⚠️ Report is 1 commits behind head on develop.

Files with missing lines	Patch %	Lines
includes/Abilities/Type_Ahead/Type_Ahead.php	22.22%	7 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop     #776      +/-   ##
=============================================
- Coverage      76.50%   76.48%   -0.03%     
- Complexity      1868     1869       +1     
=============================================
  Files             89       89              
  Lines           7985     7990       +5     
=============================================
+ Hits            6109     6111       +2     
- Misses          1876     1879       +3     

Flag	Coverage Δ
unit	76.48% <22.22%> (-0.03%)	⬇️

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[jeffpaul]

Provider/model selection appeared as expected, and adding in copy guidelines adjusted the type ahead text as expected