Route FS/git REST through the active profile, mount the remote folder picker
at app root, keep the project dialog open while picking, show a first-run
blank state, flip into grouped view on create, and constrain the picker scroll
area so Select stays reachable.
Let UI callers ask for folders/files without knowing remote-picker limits:
selectDesktopPaths now normalizes remote directory selection to a single folder
inside the facade. Project creation and composer context picking no longer branch
on remote mode; they route through desktop-fs helpers just like git callers route
through desktopGit(). Behavior unchanged except remote folder context now works
through the same backend picker path.
The new-project / add-folder dialog (PR #49037) picked folders via the
native Electron dialog (pickDefaultProjectDir), which only browses the
LOCAL machine. On a remote gateway that picks a path that doesn't exist
on the backend where sessions actually run.
Route pickProjectFolder() through selectDesktopPaths({directories,
multiple:false}) — the same remote-aware path the retired right-sidebar
picker used: local mode opens the native directory dialog, remote mode
browses the backend filesystem via the in-app RemoteFolderPicker. Seed
it with the backend's default cwd on remote so it opens somewhere useful.
