* fix(ui): show sidebar copy confirmation only on a successful write
The sidebar account menu's copy button switched to the checkmark
synchronously, before the clipboard write settled, so it confirmed a
copy that never happened when navigator.clipboard was undefined on
non-secure origins or when writeText rejected. The handler now guards
navigator.clipboard, awaits the write, and flips to the checkmark only
on success
Also updates the header accent emoji in the same menu
* refactor(ui): extract a shared CopyButton for the sidebar account menu
The copy-icon-to-checkmark pattern was hand-rolled in several places,
including the sidebar account menu whose private copy button held the
false-confirmation bug. Extract a single canonical CopyButton into
components/shared, built on the Button primitive with a guarded and
awaited clipboard write so the checkmark appears only on a real
success, and have SidebarAccountMenu consume it
The success and failure-mode coverage now lives in the shared
component's own test; the sidebar test keeps one case asserting the
email row is wired to it
* feat(ui): add redesigned sidebar account menu
Introduce SidebarAccountMenu, a sidebar-only account/logout menu built on
shadcn Popover/Switch/Badge/Separator/Button, and wire it into leftnav in
place of the shared UserDropdown. The panel has a LiteLLM header with the
bouncing moon and a clickable version tag, Tier/Role/Email/User ID rows
with copy actions, the five display toggles, and Logout.
UserDropdown is left untouched so the control-plane / chat navbar keeps
its existing menu. The version tag links to the same release notes page
as the navbar tag, and the bouncing icon reuses the existing header
animation gated by the Hide Bouncing Icon toggle.
* test(ui): point account-menu e2e specs at the migrated sidebar menu
The sidebar account menu moved from an antd Dropdown to a Base UI popover
(SidebarAccountMenu), so the login, logout, proxy-logout-url, and internal
user identity specs were still waiting on antd-era locators
(.ant-dropdown, the popupRender wrapper class, the user-dropdown-panel test
id, and a menuitem-role Logout). Point them at the new panel test id
(sidebar-account-menu-panel) and the button-role Logout instead. The logout
behavior is unchanged since both menus call the same useLogout handler.
