程序员阿江(Relakkes) 7e737cb4aa fix(desktop): restore tab bar window dragging
Electron handles custom draggable chrome through CSS app-region rules, not the old runtime startDragging path. Mark the tab strip and empty scroll gutter as native drag regions while keeping tab items and controls explicitly no-drag so tab reordering and close/tool buttons keep receiving pointer events.

Constraint: Electron drag regions swallow pointer events unless interactive children are marked no-drag
Rejected: Keep calling startDragging from the empty gutter | Electron desktopHost does not expose that as the active migration path
Confidence: high
Scope-risk: narrow
Directive: Do not mark tab items themselves as drag regions without revalidating tab reorder behavior
Tested: cd desktop && bun run test src/components/layout/TabBar.test.tsx --run
Tested: cd desktop && bun run lint
Tested: bun run check:desktop
2026-06-03 12:42:14 +08:00
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