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.

server/__tests__/quit.test.js

@@ -2,7 +2,8 @@
  * @file Tests Quit AgentHub (issue #65, server/lib/quit.js and
  * POST /api/settings/quit): the stopped flag, stopping through the service
  * manager when a unit of ours runs the server (a SIGTERM would be restarted),
- * and the route killing every lane pane before it stops. tmux runs only in the
+ * and the route killing every lane pane before it stops; the uninstall route's
+ * confirm gate. tmux runs only in the
  * isolated server `npm run test:server` sets up.
  * @author Nguyễn Ngọc Trí Vĩ <vinnt@smartgift.vn>
  */
@@ -127,5 +128,16 @@ describe(
         execFileSync("tmux", ["kill-session", "-t", "not-ours"]);
       }
     });
+
+    // Never with `confirm: true` here: that runs scripts/uninstall.js for real.
+    it("refuses an uninstall without confirm: true", async () => {
+      const res = await fetch(`${base}/api/settings/uninstall`, {
+        method: "POST",
+        headers: { "content-type": "application/json" },
+        body: "{}",
+      });
+      assert.equal(res.status, 400);
+      assert.equal((await res.json()).error.code, "ECONFIRM");
+    });
   }
 );