* Vertical history strip: left of the browser, compact rows, hollow-circle marker, collapsed rail hover
* Vertical history strip: seam handle to expand and collapse names, drag to resize with snap
* Vertical history strip: no empty gap below the transport
* Show the history seam arrow only on hover (#2028)
* claim: #2021
* Redesign the Assistant chat panel with shared UI components
* Show Assistant in the shared floating panel shell
* Extend floating Assistant to viewport height and shift navigation
* Dock Assistant before history and match docking preview bounds
* Align Assistant top margin with floating shell cards
* Extract a shared panel drag grip
* Rebuild responsive history sizing and three-way docking
* Share browser and History collapse hover styling
* Show the History title as soon as its text fits
* Animate stacked browser and History expansion and collapse
* Make panel folding responsive and independent of frame delays
* Let folding panel contents shrink continuously to header height
* Use four explicit History transport actions in every layout
* Resize the shared Browser and History column from either card
* claim: shared compact-mode containers (#2029)
* Centralize layout-aware UI containers and enforce their use
* Keep docked Assistant at the outer edge beside tool sheets
* Use shared surface policy for Assistant tool space
* Let tool sheets drag over shell panels while avoiding Assistant
* Update Parameters drag bounds assertion for shell overlap
* Keep dragged tool sheets below ribbon and workspace selector
* Enforce universal UI containers in mandatory repository checks
* Remove legacy report windows and require shared window composition
* Remove retired UI styling and require shared controls
* claim: compact layout preference (#2029)
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Co-authored-by: bherbruck <brennen.herbruck@gmail.com>
Nathan Dane