stratgy: add irr

[austin362667]

one-line time-series ranked negative return alpha with alpha-weighted assets (inventory & capital) position adjustment.

expressed as => ts_rank(-returns, 120) as our alpha, predictive signal, in order to compute next targeting position base.

[codecov[bot]]

Codecov Report

Merging #959 (beb1344) into main (29376de) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #959   +/-   ##
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  Coverage   20.12%   20.12%           
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  Files         413      413           
  Lines       31005    31005           
=======================================
  Hits         6240     6240           
  Misses      24165    24165           
  Partials      600      600           

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[bbgokarma-bot]

Hi @austin362667,

Well done! 871 BBG has been sent to your polygon wallet. Please check the following tx:

https://polygonscan.com/tx/0x6d5212db8200bc8a9aff88210c37b13defcaa6d82eaa5a5c357792086e75f2fa

Thank you for your contribution!