The ephemeral pane used to be a third arm of the Folders tab, reachable only
through a folder-open icon buried in the tree rail — one arm of one mode of
one tab. It also HID the folder browser while it was open. Neither survives
the media this pane is about to hold (a CD, a SACD image).
Row 1 of the header now carries two menus, both `CardMenu` (the shared menu
surface, no new component):
- `Open`, always present, is the one door for every medium. Only "Open
folder…" is wired here; the disc entries land with their readers.
- `Refresh` replaces the Plex-only re-sync icon (#573). Rows are APPENDED
per configured source rather than rendered disabled, so a user with no
media servers sees local folders and nothing else. It needed no new Rust:
`plexAvailable`, `mediaHasJellyfin`, `mediaHasSubsonic`, `syncPlex()`,
`mediaSync()` and the settings' own "library-scan" all already existed.
The ephemeral session becomes a tab of its own, present only while a session
is. Two failure modes are handled because the tab can VANISH under the user:
closing the session falls back to Albums instead of leaving `activeTab` on a
tab with no body, and opening one navigates to it — while the pane was an arm
of Folders that was implicit, and with a tab of its own, opening a folder from
Albums would otherwise do nothing visible.
`load_tab_impl` gains an "ephemeral" arm: nothing to load (the session is in
memory), but without the arm every switch to the tab logged "unknown tab",
which is what a real routing bug looks like.
Driven under Xvfb, not inferred: both menus open, the gated rows match the
configured servers, opening lands on the tab, the badges read DSD64, closing
removes the tab and falls back to Albums, and the folder tree is now visible
WITH a session open.
cc
vicrodh
cb4c03ca46