apps/web/src/browser/BrowserViewportResizeHandles.tsx       |   2 +-
 apps/web/src/browser/browserViewportLayout.test.ts          |  16 +--
 apps/web/src/browser/browserViewportLayout.ts               |   2 +-
 apps/web/src/browser/useBrowserViewportResize.test.tsx      | 124 +++++++++++++++++++++++
 apps/web/src/browser/useBrowserViewportResize.ts            |  28 ++++-
 apps/web/src/components/AppSidebarLayout.tsx                |   2 +-
 apps/web/src/components/ThreadTerminalDrawer.tsx            | 174 ++++++++++++++------------------
 apps/web/src/components/preview/PreviewPanelShell.tsx       |  12 ++-
 apps/web/src/components/preview/RightPanelResizeHandle.tsx  |  14 +--
 apps/web/src/components/preview/ThreadPreviewMiniPlayer.tsx |  91 +++++++++++++----
 apps/web/src/components/ui/sidebar.tsx                      |  68 +++++++++++--
 apps/web/src/hooks/useResizableWidth.test.tsx               | 112 +++++++++++++++++++-
 apps/web/src/hooks/useResizableWidth.ts                     |  36 ++++++-
 apps/web/src/hooks/useResizeDrag.ts                         |  48 +++++----
 14 files changed, 555 insertions(+), 174 deletions(-)