feat: v2.7.7 — File Explorer on workspaces and the user's home, clone with per-user git identity

- File Explorer (Files in the sidebar, /files; also from a workspace's Files
  tab, portalled so no panel clips it), laid out like GNOME Files: places
  (Home, workspaces, Trash), Back/Forward/Up, path bar, search, icon grid with
  image thumbnails or list, labelled New/Upload, selection action bar, hidden
  files behind Ctrl+H, right-click menus and the usual keys.
  Make, rename, move, copy (within a workspace, between workspaces, home ↔
  workspace), delete into a per-account trash restorable for 7 days, streamed
  upload of files and whole folders (≤ 500 MB a batch, Replace / Keep both /
  Skip on a taken name), download a file or a zip of anything.
  server/lib/file-explorer.js, /api/lanes/:id/fs/*, /api/homes/:who/fs/*.
- The user's home: every dot entry at its top stays hidden and refused
  (also via a symlink, download, zip or as a copy source); an admin may view
  other users' homes read-only, audited.
- write-as learns move/copy (re-run `sudo agenthub server install-system`).
- Hardening: a write to a workspace re-checks its owner by the live role;
  S3 keeps its server.conf if the file stops reading and a tmux call never
  falls back to the host's server; the AI Proxy gateway marks what it relays
  and the dashboard refuses it; a NUL in a pane's argv/env is refused.
- OpenAPI for the new routes (server/openapi-extra/files.js); docs (API,
  SERVER-MODE, CLAUDE.md) updated.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

client/src/components/Sidebar.tsx

@@ -56,6 +56,7 @@ import { useDialog } from "../hooks/useDialog";
 import {
   LayoutDashboard,
   FolderOpen,
+  HardDrive,
   BarChart3,
   Settings,
   Wifi,
@@ -88,6 +89,8 @@ function isUpdatePayload(x: unknown): x is UpdateStatusPayload {
 const NAV_KEYS = [
   { to: "/", icon: LayoutDashboard, key: "nav:dashboard" },
   { to: "/sessions", icon: FolderOpen, key: "nav:sessions" },
+  // The file manager (FilesPage): browse, upload and download workspace files.
+  { to: "/files", icon: HardDrive, key: "nav:files" },
 ] as const;
 
 const STORAGE_KEY = "sidebar-collapsed";

client/src/components/lanes/LaneChangesPanel.tsx

@@ -102,7 +102,7 @@ import {
   Sparkles,
   Trash2,
   UnfoldVertical,
-  Upload,
+  FolderOpen,
 } from "lucide-react";
 import { api, gitTarget } from "../../lib/api";
 import { pasteToLane } from "../../lib/panePaste";
@@ -123,6 +123,7 @@ import {
   type LaneDiffChange,
 } from "./LaneDiffView";
 import { LaneConflictView } from "./LaneConflictView";
+import { FileExplorer } from "./FileExplorer";
 import { ContextMenu, MenuItem, MenuSeparator, useContextMenu } from "../ContextMenu";
 import { MarkdownPreview, isMarkdown } from "../MarkdownPreview";
 import { LaneGitHeader, useLaneGitFacts } from "./LaneGitHeader";
@@ -1639,6 +1640,14 @@ export function LaneChangesPanel({
               {t("changes.uploadHere")}
             </MenuItem>
           )}
+          {treeCtx.menu.item.dir && (
+            <MenuItem
+              testId="lane-changes-menu-explorer"
+              onSelect={pick(treeCtx.close, () => setExplorer({ path: treeCtx.menu!.item.path }))}
+            >
+              {t("changes.openInExplorer")}
+            </MenuItem>
+          )}
           <MenuItem onSelect={pick(treeCtx.close, () => copy(treeCtx.menu!.item.path))}>
             {t("changes.copyPath")}
           </MenuItem>
@@ -1888,7 +1897,11 @@ export function LaneChangesPanel({
   // upload only creates, into the folder it was asked for ("" = the root).
   const uploadInput = useRef<HTMLInputElement>(null);
   const uploadDir = useRef("");
-  const [uploading, setUploading] = useState(false);
+  const [, setUploading] = useState(false);
+  // The File Explorer (the toolbar button where Upload was); the tree is
+  // re-read when it closes after changing anything.
+  const [explorer, setExplorer] = useState<{ path: string } | null>(null);
+  const explorerChanged = useRef(false);
   const download = (path: string) => {
     const a = document.createElement("a");
     a.href = api.lanes.gitDownloadUrl(target, path);
@@ -2121,9 +2134,24 @@ export function LaneChangesPanel({
           aria-label={t("changes.quickOpen")}
           className="w-full rounded border border-border bg-surface-1 px-2 py-1 font-mono text-[11px] text-fg-primary"
         />
-        <IconButton label={t("changes.upload")} disabled={uploading} onClick={() => pickUpload("")}>
-          <Upload className="h-3.5 w-3.5" />
+        <IconButton label={t("changes.openExplorer")} onClick={() => setExplorer({ path: "" })}>
+          <FolderOpen className="h-3.5 w-3.5" />
         </IconButton>
+        <FileExplorer
+          open={!!explorer}
+          laneId={laneId}
+          session={session}
+          source={source}
+          initialPath={explorer?.path ?? ""}
+          onChanged={() => (explorerChanged.current = true)}
+          onClose={() => {
+            setExplorer(null);
+            if (explorerChanged.current) {
+              explorerChanged.current = false;
+              void rereadAll();
+            }
+          }}
+        />
         <input
           ref={uploadInput}
           type="file"

client/src/components/lanes/__tests__/FileExplorer.test.tsx

@@ -0,0 +1,257 @@
+/**
+ * @file Tests for the workspace File Explorer modal: it lists a folder and
+ * opens sub-folders, makes a folder inline, deletes into the Trash without a
+ * confirm, copies in one workspace and pastes into another (`fromLane`),
+ * asks Replace / Keep both / Skip when an upload's name is taken, refuses a
+ * batch over 500 MB before sending anything, and restores from the Trash.
+ * @author Nguyễn Ngọc Trí Vĩ <vinnt@smartgift.vn>
+ */
+import { describe, it, expect, vi, beforeEach } from "vitest";
+import { fireEvent, render, screen, waitFor, within } from "@testing-library/react";
+import userEvent from "@testing-library/user-event";
+import { FileExplorer } from "../FileExplorer";
+import { api, type FsListing } from "../../../lib/api";
+import { toast } from "../../../lib/toast";
+
+vi.mock("../../../lib/api", () => ({
+  gitTarget: (lane: number, session?: string | null) => (session ? { lane, session } : lane),
+  isHomePlace: (p: unknown) => typeof p === "object" && p !== null && "home" in p,
+  api: {
+    lanes: {
+      list: vi.fn(),
+      gitDownloadUrl: (t: number, p: string) => `/api/lanes/${t}/git/download?path=${p}`,
+    },
+    files: {
+      homes: vi.fn(),
+      downloadUrl: (t: unknown, p: string) => `/dl/${JSON.stringify(t)}/${p}`,
+      list: vi.fn(),
+      mkdir: vi.fn(),
+      newFile: vi.fn(),
+      rename: vi.fn(),
+      move: vi.fn(),
+      copy: vi.fn(),
+      remove: vi.fn(),
+      trash: vi.fn(),
+      restore: vi.fn(),
+      purge: vi.fn(),
+      upload: vi.fn(),
+      zipUrl: (t: number, ps: string[]) => `/api/lanes/${t}/fs/zip?p=${ps.join("&p=")}`,
+    },
+  },
+}));
+vi.mock("../../../lib/toast", () => ({
+  toast: { success: vi.fn(), error: vi.fn(), info: vi.fn() },
+}));
+
+const root: FsListing = {
+  path: "",
+  parent: null,
+  truncated: false,
+  entries: [
+    { name: "src", path: "src", type: "dir", size: null, mtime: 0 },
+    { name: "a.txt", path: "a.txt", type: "file", size: 12, mtime: 0 },
+  ],
+};
+const src: FsListing = {
+  path: "src",
+  parent: "",
+  truncated: false,
+  entries: [{ name: "x.js", path: "src/x.js", type: "file", size: 2, mtime: 0 }],
+};
+
+beforeEach(() => {
+  vi.clearAllMocks();
+  vi.mocked(api.lanes.list).mockResolvedValue({
+    lanes: [
+      { id: 1, title: "one", cwd: "/w/one" },
+      { id: 2, title: "two", cwd: "/w/two" },
+    ],
+    counts: {},
+  } as never);
+  vi.mocked(api.files.list).mockImplementation(async (_t, p = "") => (p === "src" ? src : root));
+  vi.mocked(api.files.trash).mockResolvedValue({ items: [] });
+  vi.mocked(api.files.homes).mockResolvedValue({
+    homes: [
+      { id: "me", label: "An", readOnly: false },
+      { id: "bob", label: "Bob", readOnly: true },
+    ],
+  });
+});
+
+const open = () => render(<FileExplorer open laneId={1} onClose={vi.fn()} onChanged={vi.fn()} />);
+const row = (name: string) =>
+  screen.getAllByTestId("fx-row").find((r) => r.textContent?.includes(name))!;
+
+describe("FileExplorer", () => {
+  it("hides dot files until Ctrl+H, like the Linux file manager", async () => {
+    vi.mocked(api.files.list).mockResolvedValue({
+      ...root,
+      entries: [
+        ...root.entries,
+        { name: ".env.example", path: ".env.example", type: "file", size: 1, mtime: 0 },
+      ],
+    });
+    open();
+    await screen.findByText("a.txt");
+    expect(screen.queryByText(".env.example")).toBeNull();
+    fireEvent.keyDown(screen.getByTestId("fx-list"), { key: "h", ctrlKey: true });
+    expect(await screen.findByText(".env.example")).toBeInTheDocument();
+  });
+
+  it("shows a labelled action bar for a selection, and goes Back after opening a folder", async () => {
+    const user = userEvent.setup();
+    open();
+    await screen.findByText("a.txt");
+    await user.click(row("a.txt"));
+    const bar = screen.getByTestId("fx-actionbar");
+    expect(within(bar).getByRole("button", { name: /Download/ })).toBeInTheDocument();
+    expect(within(bar).getByRole("button", { name: /Move to Trash/ })).toBeInTheDocument();
+    fireEvent.doubleClick(row("src"));
+    await screen.findByText("x.js");
+    await user.click(screen.getByRole("button", { name: "Back" }));
+    await waitFor(() => expect(api.files.list).toHaveBeenLastCalledWith(1, ""));
+  });
+
+  it("lists a folder and opens a sub-folder on double-click", async () => {
+    open();
+    expect(await screen.findByText("a.txt")).toBeInTheDocument();
+    fireEvent.doubleClick(row("src"));
+    expect(await screen.findByText("x.js")).toBeInTheDocument();
+    expect(api.files.list).toHaveBeenLastCalledWith(1, "src");
+  });
+
+  it("makes a folder inline", async () => {
+    vi.mocked(api.files.mkdir).mockResolvedValue({ path: "docs" });
+    const user = userEvent.setup();
+    open();
+    await screen.findByText("a.txt");
+    await user.click(screen.getByRole("button", { name: "New" }));
+    await user.click(screen.getByRole("menuitem", { name: "New folder" }));
+    const name = screen.getByLabelText("Name");
+    await user.clear(name);
+    await user.type(name, "docs{Enter}");
+    await waitFor(() => expect(api.files.mkdir).toHaveBeenCalledWith(1, "docs"));
+  });
+
+  it("deletes into the Trash without asking", async () => {
+    vi.mocked(api.files.remove).mockResolvedValue({ trashed: ["id1"] });
+    open();
+    await screen.findByText("a.txt");
+    fireEvent.click(row("a.txt"));
+    fireEvent.keyDown(screen.getByTestId("fx-list"), { key: "Delete" });
+    await waitFor(() => expect(api.files.remove).toHaveBeenCalledWith(1, ["a.txt"]));
+    expect(screen.queryByRole("alertdialog")).toBeNull();
+  });
+
+  it("copies here and pastes into another workspace", async () => {
+    vi.mocked(api.files.copy).mockResolvedValue({ copied: ["a.txt"] });
+    const user = userEvent.setup();
+    open();
+    await screen.findByText("a.txt");
+    fireEvent.click(row("a.txt"));
+    fireEvent.keyDown(screen.getByTestId("fx-list"), { key: "c", ctrlKey: true });
+    await user.click(await screen.findByRole("button", { name: "two" }));
+    await waitFor(() => expect(api.files.list).toHaveBeenLastCalledWith(2, ""));
+    await user.click(screen.getByRole("button", { name: /Paste 1 item/ }));
+    await waitFor(() =>
+      expect(api.files.copy).toHaveBeenCalledWith(2, ["a.txt"], "", {
+        fromLane: 1,
+        conflict: "fail",
+      })
+    );
+  });
+
+  it("asks about a taken name on upload, and sends the choice", async () => {
+    vi.mocked(api.files.upload)
+      .mockRejectedValueOnce(
+        Object.assign(new Error("taken"), { code: "EEXISTS", names: ["a.txt"] })
+      )
+      .mockResolvedValueOnce({ path: "a (1).txt" });
+    const user = userEvent.setup();
+    open();
+    await screen.findByText("a.txt");
+    const file = new File(["hi"], "a.txt");
+    await user.upload(screen.getByTestId("fx-upload-files"), file);
+    const ask = await screen.findByTestId("fx-conflict");
+    await user.click(within(ask).getByRole("button", { name: "Keep both" }));
+    await waitFor(() =>
+      expect(api.files.upload).toHaveBeenLastCalledWith(
+        1,
+        "a.txt",
+        file,
+        "keep",
+        expect.any(Function)
+      )
+    );
+  });
+
+  it("refuses a batch over 500 MB before sending anything", async () => {
+    open();
+    await screen.findByText("a.txt");
+    const big = new File(["x"], "big.bin");
+    Object.defineProperty(big, "size", { value: 600 * 1024 * 1024 });
+    fireEvent.change(screen.getByTestId("fx-upload-files"), { target: { files: [big] } });
+    await waitFor(() => expect(toast.error).toHaveBeenCalled());
+    expect(api.files.upload).not.toHaveBeenCalled();
+  });
+
+  it("restores from the Trash", async () => {
+    vi.mocked(api.files.trash).mockResolvedValue({
+      items: [
+        {
+          id: "abc12345",
+          name: "a.txt",
+          laneId: 1,
+          path: "a.txt",
+          isDir: false,
+          deletedAt: "2026-10-14T00:00:00Z",
+        },
+      ],
+    });
+    vi.mocked(api.files.restore).mockResolvedValue({ path: "a.txt", laneId: null });
+    const user = userEvent.setup();
+    open();
+    await screen.findByText("a.txt");
+    await user.click(screen.getByRole("button", { name: "Trash" }));
+    const trashRow = await screen.findByTestId("fx-trash-row");
+    await user.click(within(trashRow).getByRole("button", { name: /Restore/ }));
+    await waitFor(() => expect(api.files.restore).toHaveBeenCalledWith(1, "abc12345"));
+  });
+
+  it("opens the user's home from the sidebar, and pastes from it into a workspace", async () => {
+    vi.mocked(api.files.copy).mockResolvedValue({ copied: ["a.txt"] });
+    const user = userEvent.setup();
+    open();
+    await screen.findByText("a.txt");
+    await user.click(await screen.findByRole("button", { name: "Home" }));
+    await waitFor(() => expect(api.files.list).toHaveBeenLastCalledWith({ home: "me" }, ""));
+    fireEvent.click(row("a.txt"));
+    fireEvent.keyDown(screen.getByTestId("fx-list"), { key: "c", ctrlKey: true });
+    await user.click(screen.getByRole("button", { name: "one" }));
+    await waitFor(() => expect(api.files.list).toHaveBeenLastCalledWith(1, ""));
+    await user.click(screen.getByRole("button", { name: /Paste 1 item/ }));
+    await waitFor(() =>
+      expect(api.files.copy).toHaveBeenCalledWith(1, ["a.txt"], "", {
+        fromHome: "me",
+        conflict: "fail",
+      })
+    );
+  });
+
+  it("shows another user's home read-only: no New, Upload, Cut, Rename or Delete", async () => {
+    const user = userEvent.setup();
+    open();
+    await screen.findByText("a.txt");
+    await user.click(await screen.findByRole("button", { name: /Bob/ }));
+    expect(await screen.findByTestId("fx-readonly")).toBeInTheDocument();
+    expect(screen.queryByRole("button", { name: "New" })).toBeNull();
+    expect(screen.queryByRole("button", { name: "Upload" })).toBeNull();
+    await user.click(row("a.txt"));
+    const bar = screen.getByTestId("fx-actionbar");
+    expect(within(bar).getByRole("button", { name: /Download/ })).toBeInTheDocument();
+    expect(within(bar).getByRole("button", { name: /Copy/ })).toBeInTheDocument();
+    expect(within(bar).queryByRole("button", { name: /Cut|Rename|Move to Trash/ })).toBeNull();
+    fireEvent.keyDown(screen.getByTestId("fx-list"), { key: "Delete" });
+    expect(api.files.remove).not.toHaveBeenCalled();
+  });
+});