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/lanes/WorkspaceHome.tsx

@@ -776,6 +776,16 @@ function HomeBody({
             {t("tree.showMore", { count: Math.min(sessionTotal - sessions.length, RECENT_PAGE) })}
           </button>
         )}
+        {recentLimit > RECENT_PAGE && sessionTotal > RECENT_PAGE && (
+          <button
+            type="button"
+            data-testid="workspace-recents-less"
+            onClick={() => setRecentLimit(RECENT_PAGE)}
+            className="ml-3 mt-1 text-xs text-fg-muted hover:text-fg-primary"
+          >
+            {t("tree.showLess")}
+          </button>
+        )}
         <div className="mt-2">
           <SessionFold
             testId={`workspace-archived-${lane.id}`}
@@ -923,6 +933,7 @@ function HomeBody({
               }}
             />
           </div>
+          <p className="mt-1 text-xs text-fg-muted">{t("home.contextSnapshot")}</p>
           {files.length === 0 ? (
             <button
               type="button"