feat(web-awesome): virtual scrolling for test results tree#684
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…t mode Render only visible rows (~30 items) instead of all 500+ DOM nodes. Uses a lightweight custom virtualizer (no external dependency) with per-item height measurement and scroll-based window computation. The VirtualTreeList component replaces the recursive Tree in split mode, driven by a new flatVirtualRows computed signal that pre-flattens the filtered tree with full rendering data (name, status, duration, etc.). Group expand/collapse and subtree toggle are fully supported.
…st and flattenTreeWithData tests
…web-commons in TrSteps
…tid in VirtualTree
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Summary
Treecomponent in the test results panel with a flat virtual list (VirtualTreeList) that renders only visible rows (~20-30 DOM nodes instead of 500+)[data-tree-scroll-container]ancestor)treeSubtreeToggleClassfromweb-componentsso the virtual list reuses the same CSS module class for the hover animationisSubtreeFirstLevelOnlyOpeneddirectly from@allurereport/web-commonsinstead of through a re-export chainNew files
VirtualTree/useVirtualList.tsResizeObserver.VirtualTree/VirtualTreeList.tsxVirtualTree/GroupHeader.tsxVirtualTree/EnvHeader.tsxstores/virtualTree.tsflatVirtualRowscomputed signal — flattensfilteredTreeinto a flat array with full rendering dataTests
test/stores/virtualTree.test.ts— 16 tests forflattenTreeWithData: depths, expand/collapse, idPrefix, leaf/group data, edge casestest/components/VirtualTree/useVirtualList.test.ts— 12 tests for the hook: visible window, scroll shifts,scrollToIndex, height measurement, external scroll container, count-change cache clear