fix(viewer): actively cancel superseded PDF.js work on current parent - #445

fix(viewer): actively cancel superseded PDF.js work on current parent#445

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fix/viewer-generation-safe-renderingContextualWisdomLab/clearfolio:fix/viewer-generation-safe-renderingfrom

fix/viewer-active-pdfjs-cancellation-after-current-323-20260814ContextualWisdomLab/clearfolio:fix/viewer-active-pdfjs-cancellation-after-current-323-20260814Copy head branch name to clipboard