feat: RND-119: Add token usage in inference output

[niklub]

Adala table now contains the following system fields:

• _prompt_tokens
• _completion_tokens
• _total_cost_usd

and they're piped to the LSE resulthandler.

TODO need to update all tests again or add some kind of flag which only adds these fields when requested by server

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Commit https://github.com/HumanSignal/infra/commit/8f440f082b9545a49028a592c64ef072ea0fcb91 is created.

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Commit https://github.com/HumanSignal/infra/commit/d5ee8986f9b410ce707324493bb7be52b2eca902 is created.

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Commit https://github.com/HumanSignal/infra/commit/b0aa698fdcb3db0e5d8a076a3bf1e1dc4c37fa8a is created.

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Commit https://github.com/HumanSignal/infra/commit/61e89c98abfb515fdd87e17e8e921b48cc193cf0 is created.

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Commit https://github.com/HumanSignal/infra/commit/4fe5d1f6a1819db91e4c38718876a71f4ad893eb is created.

[niklub]

/git merge master

Workflow run
Successfully merged: 5 files changed, 133 insertions(+), 185 deletions(-)

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Commit https://github.com/HumanSignal/infra/commit/a3123a2cb25515ed7e4174acb62176a62b22cb56 is created.

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Commit https://github.com/HumanSignal/infra/commit/eca9fec610779a55a044929e0b3bfe6f2550a7ba is created.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 78.46154% with 14 lines in your changes missing coverage. Please review.

Project coverage is 61.57%. Comparing base (459fe95) to head (9c1d952).
Report is 7 commits behind head on master.

Files with missing lines	Patch %	Lines
adala/runtimes/_litellm.py	76.27%	14 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #183      +/-   ##
==========================================
+ Coverage   61.23%   61.57%   +0.34%     
==========================================
  Files          44       44              
  Lines        2030     2064      +34     
==========================================
+ Hits         1243     1271      +28     
- Misses        787      793       +6     

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Commit https://github.com/HumanSignal/infra/commit/d4bdadffdda7d05911b0b1e722ebe66029891443 is created.