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/i18n/locales/en/sessions.json

@@ -8,7 +8,6 @@
   "filterError": "Error",
   "filterAbandoned": "Abandoned",
   "sessionCount": "{{count}} session recorded",
-  "sessionCount_plural": "{{count}} sessions recorded",
   "noSessions": "No sessions found",
   "noSessionsDesc": "Try adjusting your search or filters.",
   "noSessionsHint": "Start a Claude Code session with hooks installed to begin tracking.",
@@ -26,14 +25,12 @@
       "generic": "Claude Code is paused in this session until you respond in the terminal."
     },
     "failedLoad": "Failed to load session",
-    "loading": "Loading session...",
     "notFound": "Session not found",
     "backToSessions": "Back to Sessions",
     "agents": "Agents",
     "noAgents": "No agents recorded.",
     "unparented": "Unparented Subagents",
     "costBreakdown": "Cost Breakdown",
-    "eventTimeline": "Event Timeline",
     "noEvents": "No events recorded.",
     "conversation": "Conversation",
     "timeline": "Timeline ({{shown}}/{{total}})",
@@ -151,6 +148,8 @@
     "persistedOutput": "Persisted output",
     "taskNotification": "Task notification",
     "thinking": "Thinking",
+    "showMore": "Show more",
+    "showLess": "Show less",
     "chars_one": "{{formatted}} char",
     "chars_other": "{{formatted}} chars",
     "sender": {
@@ -181,6 +180,22 @@
       "statusError": "error",
       "statusOk": "ok",
       "statusPending": "pending"
+    },
+    "work": {
+      "commands_one": "ran {{count}} command",
+      "commands_other": "ran {{count}} commands",
+      "edits_one": "edited a file",
+      "edits_other": "made {{count}} edits",
+      "reads_one": "read a file",
+      "reads_other": "read {{count}} files",
+      "searches_one": "searched the code",
+      "searches_other": "ran {{count}} searches",
+      "web_one": "looked up the web",
+      "web_other": "made {{count}} web lookups",
+      "agents_one": "ran an agent",
+      "agents_other": "ran {{count}} agents",
+      "tools_one": "used a tool",
+      "tools_other": "used {{count}} tools"
     }
   },
   "overview": {