On minimal window managers (fluxbox et al, the in-process XEmbed-tray
path) the WM neither centers small windows nor restores their position
across a hide -> show round-trip, so the main, Settings, and dialog
windows opened in the top-left corner instead of centered.
These windows are created Hidden, so Wails' Linux/GTK4 backend skips its
post-Show centering pass (gated on !Hidden) and InitialPosition has no
effect on an unrealized window. Re-center from Go after Show, gated on
the minimal-WM environment via a recenterOnShow predicate (set to
xembedTrayAvailable on Linux, nil on macOS/Windows where the WM handles
placement). centerWhenReady polls from a background goroutine until the
move actually lands -- Center() moves via raw X11, which no-ops while the
GdkSurface is still nil and GTK4 realizes it asynchronously after Show().
Also reorder xembed_host_linux.go so the static helpers (xembedTrayAvailable,
goMenuItemClicked) sit at the end, after the constructor and methods.
Extract helpers to bring three methods under the 20 cognitive-complexity
limit without changing behavior:
- DaemonFeed.statusStreamLoop: split out handleStatusRecvErr and emitStatus
- Tray.applyStatus: split out consumePendingConnectLogin and
refreshMenuItemsForStatus
- xembedHost.flattenMenu: split out menuItemFromLayout plus propString /
propBool / propInt32 dbusmenu property accessors
Removes the legacy fyne-based client/ui implementation and renames the
Wails replacement (client/ui-wails) to take its place at client/ui. Go
imports, frontend bindings, CI workflows, goreleaser configs and the
windows .syso icon path are updated to follow the rename.
