feat: `uconvert` and `ustrip`

[codecov[bot]]

Codecov Report

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

Project coverage is 96.62%. Comparing base (e0e7c5f) to head (62b25b3). Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #186 +/- ## ========================================== + Coverage 96.58% 96.62% +0.03% ========================================== Files 37 37 Lines 1464 1480 +16 ========================================== + Hits 1414 1430 +16 Misses 50 50 ```

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