Second pass on the remote-project flow: the project dialog and git cockpit were
remote-aware, but the composer's Add file/folder context picker still called the
native Electron picker directly. Route it through selectDesktopPaths so remote
sessions use the backend-aware picker instead of local disk paths; preserve local
multi-select behavior and keep remote folder selection single because the in-app
remote picker only supports one directory.
Also use readDesktopFileDataUrl for image previews so an already-known backend
image path can be read through /api/fs/read-data-url, and add focused coverage
for backend file-diff routing plus the plain-folder git init/worktree path.
After the folder picker fix, an added remote folder was still half-usable:
the desktop's git GUI (coding-rail status, worktree lanes, review pane,
branch switch, file diff) all ran Electron-local git on the USER's machine,
so against a remote-gateway repo they silently degraded to empty.
Mirror the whole surface over the dashboard REST API so it acts on the
BACKEND repo where sessions actually run:
- hermes_cli/web_git.py: git/gh logic (status, worktrees, branches, review
list/diff/stage/unstage/revert/commit/commit-context/push/ship-info/
create-pr, file-diff, worktree add/remove, branch switch) shelling to the
system git, mirroring the Electron ops' shapes.
- web_server.py: /api/git/* routes (same auth gate + _fs_path hardening as
/api/fs, executor-offloaded, mutations -> 400).
- apps/desktop desktop-git.ts: remote-aware facade exposing the same shape as
window.hermesDesktop.git; coding-status / review / projects / model /
desktop-fs route through desktopGit() so local stays Electron, remote hits
/api/git/*.
Tests: tests/hermes_cli/test_web_server_git.py (real repo: status counts,
review classification, diff incl. untracked all-add, stage+commit roundtrip,
worktree/branch lifecycle, commit-context, gh-absent ship-info, auth) and
desktop-git.test.ts (local vs remote routing, envelope unwrap, POST bodies).
