Recurse into dirty submodules when building the Git status so their
modified and untracked files appear as full-path entries, and add a
commit-pointer entry (with short SHAs) only when the recorded commit
actually moved. Route diffs whose path falls inside a submodule to run
in that submodule's working tree so real per-file diffs are shown.
The changed-file list groups these under the submodule: tree view keeps
the nested structure and marks the submodule root with a badge, list
view flattens them into one expandable group pinned above the ordinary
files. Depth 1 only; ignored files are excluded; the panel stays
read-only.
Covered by client tree/list-grouping tests, parser tests, and a
server test that drives a real temporary repository and submodule.
Extract the Git panel into a dedicated `workspace-git-panel` Lit component
(mirroring the Files panel) and add a segmented List/Tree toggle next to
Refresh.
Tree view builds an in-memory, collapsible directory tree from the changed
files, starts fully collapsed, and offers a single expand-all/collapse-all
button (visible only in tree view). List view keeps the existing flat,
full-path rows. The selected view mode persists in localStorage under
`pi-web.gitFileView`; per-directory expand state is intentionally ephemeral.
- gitFileViewPreference.ts: localStorage-backed view preference (+ test)
- gitFileTree.ts: pure flat-paths -> nested-tree builder (+ test)
- WorkspaceGitPanel.ts: the panel component with toggle + tree state
lzr