Feature: add support for llama, refactor yaml service interface

[mariocandela]

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• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

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Closes #114

[codecov]

Codecov Report

Attention: Patch coverage is 95.58824% with 3 lines in your changes missing coverage. Please review.

Project coverage is 91.30%. Comparing base (0af1a05) to head (3ba605f).

Files	Patch %	Lines
plugins/llm-integration.go	95.00%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #115      +/-   ##
==========================================
- Coverage   92.17%   91.30%   -0.87%     
==========================================
  Files           5        5              
  Lines         230      276      +46     
==========================================
+ Hits          212      252      +40     
- Misses         12       16       +4     
- Partials        6        8       +2     

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