- explorer row menu gains a download action (files only); the host route
serves raw bytes with Content-Disposition: attachment, binary-safe
- editor enables line numbers
- Tabs, the + menu, and empty-pane cards carry per-type icons (folder /
branch / terminal / code file); a terminal glyph joins the icon set
- Hovering an explorer row reveals an @文件 button at the far right that
appends @<relative path> to the composer draft (session-scoped input
service, space-separated append)
- Right-clicking a row opens a context menu: copy relative / absolute
path (writeClipboard + transient in-row "copied" label)
- Rows become div role=button (Enter/Space) to host the inner button;
relativeTo helper unit-tested
Explorer rows become the app's tree-row cell — 34px, radius 8, inset by
the scroll padding, 22px indent step, and the session-row mount fade —
and git rows get the same cell plus the proper selected fill
(interactive-bg-active). Icon buttons switch to the app's 28px circle
pattern (ui-workspace), headers settle at the 36px section rhythm, and
keyboard focus gets a visible ring everywhere per the styling policy,
with a prefers-reduced-motion block turning off the slides and fades.
- cwd resolution falls back (attached header → client summary cwd → process
cwd) across the JSON API, media route and terminal upgrade, so explorer/
git/terminal work from first paint instead of 'session ... has no working
directory' while the web client hydrates the session (refresh-only fix).
- terminal client threads the summary cwd into the WS URL and stops the
reconnect loop after three unreasoned failures, showing the close code
with a manual retry; a 1011+reason refusal already showed the reason.
- white screen: persisted state is structurally sanitized on load (malformed
shapes fall back to default) and the restored width is clamped to the
viewport; the layout margin is capped at the viewport; the client entry
wraps every lifecycle step in try/catch and pins a visible diagnostic bar
on load/mount/interception failure instead of failing silently.
- editor: textarea replaced with CodeMirror 6 — line wrapping, per-extension
syntax highlighting (js/ts/jsx/tsx, json, python, html, css, xml, yaml,
sql, java, c/c++, rust, go, php, shell, toml, nginx, dockerfile,
properties), one-dark theme, dirty dot + Ctrl/Cmd+S save kept.
- tests: +9 (cwd fallback chain over the API route, state sanitization,
language mapping); 36 pass, typecheck + build + vm materialize clean.
Host half (src/index.ts): /sidebar/api JSON API (session cwd, fs tree/read/
write, git status/diff/stage/commit/branch/log/show), /sidebar/file media
route, /sidebar/ws/terminal WebSocket over node-pty; routes share the /api
trust fence (Host-header loopback or connection.trustedHosts).
Client half (src/client): portal-mounted right panel with a per-session
split-pane workbench (recursive row/col splits, draggable dividers, tab
drag-move), tab bar with max-width 160px + plus-menu (explorer/git/terminal
multi-open rules), lazy file explorer rooted at the session cwd, editable
text editor (dirty dot, Ctrl/Cmd+S), image + Markdown preview, xterm
terminal with reconnect, and a VSCode-style git panel. Per-session state
persists to localStorage (dsh-sidebar:v1:<sessionId>). Intercepts the chat
turn-tail produced-files row (priority -1 chain entry) to open files in the
sidebar. UI styled with the dsh --dsw-* theme tokens and ui-primitives.
Build: tsdown emits the host lib plus the __ModuleLoader__ client bundle
(externals = module table words; xterm/css inlined). Tests: 19 unit + smoke
specs (pure state/tree/git parsers + real git/fs integration).
Menghuan1918