Browse Shell
Two-pane master and detail shell. mobileActivePane switches between list and detail at ≤ --bp-md.
Master/detail: fixed-width sidebar + scrollable detail (Accounts, Budget, Spending). Sets
data-browse-shell; dashboard pairs with Page.Container variant="accounts" (main[data-browse-page] + flex in globals.css). Default sidebar is 420px (Accounts); sidebarWidth="narrow" is 280px (Budget month rail). At ≤768px, pass mobileActivePane="sidebar" | "detail" to switch between list and detail (Accounts); omit to stack panes, or hide the rail and provide a month Select (Spending/Budget). Resize this preview narrow to see the default stack fallback.Detail pane content