For the present, I have decided to treat the symptoms rather than the cause of this issue.
The temporary fix is as follows.
Reduce the implicit time delay by a factor of twenty by amending the Emscripten generated JavaScript file such that interval timing constant is changed from 10,000 to 500. Comment out the three error messages in the function addRunDependency. (Note:- depending on your choice of compilation flags, ‘10,000’ may actually appear as ‘1e4’.)
This allows the plugin to run satisfactorily under Photoshop 2024. It does not address the fact that there is a regression in this regard under Photoshop 2025. (Critical Issue: Photoshop 2025 Crashes When Using ... - Adobe Community - 14986114)