fix: bug where policy default values are not passed into alzlib struct

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Project coverage is 45.84%. Comparing base (b4db945) to head (9fe04ff). Report is 19 commits behind head on main.

Files	Patch %	Lines
alzlib.go	0.00%	1 Missing and 1 partial :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #137 +/- ## ========================================== + Coverage 43.20% 45.84% +2.63% ========================================== Files 16 29 +13 Lines 1178 1481 +303 ========================================== + Hits 509 679 +170 - Misses 570 669 +99 - Partials 99 133 +34 ```

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