Adding initial lp profitable check to invariant

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 80.84%. Comparing base (bfce9e3) to head (8b4f30a).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1434 +/- ## ========================================== + Coverage 80.76% 80.84% +0.07% ========================================== Files 104 104 Lines 6447 6447 ========================================== + Hits 5207 5212 +5 + Misses 1240 1235 -5 ``` | [Flag](https://app.codecov.io/gh/delvtech/agent0/pull/1434/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=delvtech) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/delvtech/agent0/pull/1434/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=delvtech) | `80.84% <100.00%> (+0.07%)` | :arrow_up: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=delvtech#carryforward-flags-in-the-pull-request-comment) to find out more.

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