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.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "agenthub",
-  "version": "2.5.12",
+  "version": "2.5.13",
   "bin": {
     "agenthub": "bin/agenthub.js"
   },
@@ -72,9 +72,8 @@
   },
   "dependencies": {
     "@lydell/node-pty": "^1.2.0-beta.15",
-    "adm-zip": "^0.5.16",
+    "adm-zip": "^0.6.1",
     "cors": "^2.8.5",
-    "cross-spawn": "^7.0.6",
     "express": "^4.21.2",
     "multer": "^2.0.0",
     "redoc": "^2.5.3",