1.x vec fix

[rainyl]

• fix: #227
• remove the dependency of flutter

[codecov-commenter]

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Codecov Report

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

Project coverage is 91.15%. Comparing base (ea281c2) to head (72b1033).

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #229 +/- ## ======================================= Coverage 91.15% 91.15% ======================================= Files 57 57 Lines 8480 8480 ======================================= Hits 7730 7730 Misses 750 750 ```

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