feat(ui): add Fluid spring primitives and workspace morph (#342) - #347
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Land QueryaSpring/controller plus FadeSlide, HoverSurface, SwitchingBody, and Stagger with broad widget coverage; wire empty↔connected via keep-alive switching body so shell state survives morphs under Full/Reduced/Off. Co-authored-by: Cursor <cursoragent@cursor.com>
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CI Flutter rejects ThemeData as a const constructor; keep the theme fallback coverage without const_with_non_const. Co-authored-by: Cursor <cursoragent@cursor.com>
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Jul 27, 2026
feat(ui): add Fluid spring primitives and workspace morph (#342)
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Summary
QueryaSpring/QueryaSpringController(interruptible retarget),QueryaFadeSlide,QueryaHoverSurface,QueryaSwitchingBody,QueryaStagger.QueryaSwitchingBodyso editor/shell state survives morphs.disableAnimations, retarget continuity, keep-alive, hover, and stagger.This lands Phase A of #342 and the empty↔connected slice of Phase B. Remaining shell morphing (tab indicator, dialogs, stagger on recent list, etc.) stays on the epic.
Linked issue
Refs #342
Checklist
flutter analyzeandflutter testpass locallydev(notmain, unless hotfix)Test plan
flutter test test/core/motion/ test/features/main_screen/workspace_panel_layout_test.dartMade with Cursor