feat(jstz_engine): implement `JsString` and `JsStr` wrappers#740

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johnyob wants to merge 2 commits intomainfrom ajob410@jstz-214-impl-jsstring-and-jsstr

+674

Commits on Feb 12, 2025

feat(jstz_engine): implement JsString and JsStrs
zcabter
committed

Commits on Feb 13, 2025

feat(jstz_engine): use rooted for js string instead
zcabter
committed