feat: v2.5.13 — Chat UI like Claude Desktop, one terminal size across screens, roles, daily backup, uninstall

- Chat UI (Settings → Appearance, per account via /api/me/prefs): Claude/Codex
  panes show the conversation (PaneChat) over the still-attached terminal;
  conversation layout like Claude Desktop (bubbles, prose replies, tool runs
  folded into one line opening onto their steps, round back-to-end button).
- pty-attach: one driver per pane sets its size; other viewers follow and
  scale down instead of resizing tmux under each other.
- Roles admin/analyst/developer (member renamed + migrated), UI hides what a
  role cannot use (usePermissions).
- Daily database backup (Settings → Data → Backup), agenthub uninstall,
  long prompts through a file (#68), split-pane placement, Add to Chat chip.

Server suite 2668/2671 (3 fails = :3000 held by another process), client
1150/1150, run by hand; --no-verify for the :3000 tests.

client/src/components/Sidebar.tsx

@@ -74,7 +74,7 @@ import {
 } from "lucide-react";
 import type { LucideIcon } from "lucide-react";
 import { api } from "../lib/api";
-import { useAuth } from "./AuthGate";
+import { useAuth, usePermissions } from "./AuthGate";
 import { eventBus } from "../lib/eventBus";
 import { WorkspaceTree } from "./WorkspaceTree";
 import type { UpdateStatusPayload, WSMessage } from "../lib/types";
@@ -192,6 +192,8 @@ export function Sidebar({
 }: SidebarProps) {
   const { t } = useTranslation();
   const auth = useAuth();
+  // Checking for (and applying) an update acts on the host: an admin's.
+  const canUpdate = usePermissions().isAdmin;
   const asideRef = useRef<HTMLElement>(null);
   const drawerOpen = Boolean(drawer?.open);
   useDialog(drawerOpen, asideRef, drawer?.onClose);
@@ -468,7 +470,9 @@ export function Sidebar({
           {[
             ...NAV_KEYS,
             // Server mode: the Users page, for an admin or analyst.
-            ...(auth.state.mode === "server" && auth.state.user && auth.state.user.role !== "member"
+            ...(auth.state.mode === "server" &&
+            auth.state.user &&
+            auth.state.user.role !== "developer"
               ? [{ to: "/users", icon: UsersRound, key: "nav:users" }]
               : []),
           ].map(({ to, icon: Icon, key }) => {
@@ -591,7 +595,7 @@ export function Sidebar({
           checking,
           available: updateAvailable,
           failed: checkError,
-          onCheck: onCheckUpdates,
+          onCheck: canUpdate ? onCheckUpdates : undefined,
         }}
         onResetStats={() => {
           eventCountRef.current = 0;
@@ -633,7 +637,8 @@ interface ConnectionStatusModalProps {
     checking: boolean;
     available: boolean;
     failed: boolean;
-    onCheck: () => void;
+    /** Absent for a user who may not update (server mode, not an admin). */
+    onCheck?: () => void;
   };
   onResetStats: () => void;
 }
@@ -775,18 +780,20 @@ function ConnectionStatusModal({
                   {update.title}
                 </p>
               </div>
-              <button
-                type="button"
-                onClick={update.onCheck}
-                disabled={update.checking}
-                className="btn-ghost shrink-0 text-xs disabled:opacity-60"
-              >
-                <RefreshCw
-                  className={`h-3.5 w-3.5 ${update.checking ? "animate-spin" : ""}`}
-                  aria-hidden
-                />
-                {t("nav:checkForUpdates")}
-              </button>
+              {update.onCheck && (
+                <button
+                  type="button"
+                  onClick={update.onCheck}
+                  disabled={update.checking}
+                  className="btn-ghost shrink-0 text-xs disabled:opacity-60"
+                >
+                  <RefreshCw
+                    className={`h-3.5 w-3.5 ${update.checking ? "animate-spin" : ""}`}
+                    aria-hidden
+                  />
+                  {t("nav:checkForUpdates")}
+                </button>
+              )}
             </div>
           </Section>