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.

bin/agenthub.js

@@ -1498,7 +1498,23 @@ async function cmdStop() {
     );
     return;
   }
-  const { killed } = await post("/api/settings/quit");
+  const res = await post("/api/settings/quit", undefined, { allowError: true });
+  if (res?.status) {
+    // Server mode: a shell on the host carries no login, and Quit is an admin's.
+    if (res.data?.error?.code === "EAUTH" || res.data?.error?.code === "EADMIN") {
+      console.error(
+        `${c.red("✖ This dashboard runs in server mode: Quit needs an admin login.")}\n` +
+          "  Log in as an admin and use Settings → System → Quit AgentHub, or stop its service:\n" +
+          `    ${c.bold("sudo systemctl stop agenthub")}        ${c.dim("# system unit (one Linux user per account)")}\n` +
+          `    ${c.bold("systemctl --user stop agenthub")}     ${c.dim("# per-user unit")}`
+      );
+    } else {
+      const msg = res.data?.error?.message || `HTTP ${res.status}`;
+      console.error(c.red(`✖ POST /api/settings/quit → ${msg}`));
+    }
+    process.exit(1);
+  }
+  const { killed } = res;
   const deadline = Date.now() + 15_000;
   while ((await serverIsUp()) && Date.now() < deadline) {
     await new Promise((r) => setTimeout(r, 250));
@@ -1512,6 +1528,36 @@ async function cmdStop() {
   );
 }
 
+/**
+ * Uninstall AgentHub (scripts/uninstall.js): without `--yes` it only lists what
+ * would go. Needs no server — it is the thing being removed.
+ */
+function cmdUninstall(flags) {
+  const settingsEnv = require(path.join(REPO_ROOT, "server", "lib", "settings-env.js"));
+  settingsEnv.loadEnvFiles({ owned: [path.join(REPO_ROOT, ".env")] });
+  const uninstall = require(path.join(REPO_ROOT, "scripts", "uninstall.js"));
+  if (flags.yes !== true) {
+    const steps = uninstall.plan();
+    if (!steps.length) return console.log(`${c.dim("○")} Nothing of AgentHub's is left here`);
+    console.log(c.bold("agenthub uninstall --yes would:"));
+    for (const s of steps) {
+      console.log(`  ${c.red("✖")} ${s.label}`);
+      for (const i of s.items) console.log(c.dim(`      ${i}`));
+    }
+    console.log(
+      c.dim(
+        "  Kept: the AI tools' own conversations, workspace worktrees and branches, your repos."
+      )
+    );
+    console.error(c.red("Nothing was removed. Re-run with --yes: agenthub uninstall --yes"));
+    process.exitCode = 1;
+    return;
+  }
+  const r = uninstall.run({ onLine: (l) => console.log(l) });
+  console.log(c.dim(`Log: ${r.log}`));
+  if (!r.ok) process.exitCode = 1;
+}
+
 /**
  * Installs/removes a systemd `--user` service (Linux) or a LaunchAgent
  * (macOS) so the dashboard survives reboots without anything (Claude Code
@@ -2785,6 +2831,11 @@ const COMMAND_GROUPS = [
         "",
         "Quit: close every workspace terminal and stop the server until `agenthub start`",
       ],
+      [
+        "uninstall",
+        "[--yes]",
+        "Remove AgentHub from this machine, its database included (lists first without --yes)",
+      ],
       [
         "service",
         "install|uninstall|status [--port N]",
@@ -2798,7 +2849,7 @@ const COMMAND_GROUPS = [
       [
         "users",
         "list|add|passwd|role|disable|enable|assign|audit [name]",
-        "Server mode's accounts (add: --role admin|analyst|member)",
+        "Server mode's accounts (add: --role admin|analyst|developer)",
       ],
       [
         "accounts",
@@ -3940,7 +3991,7 @@ async function cmdUsers(sub, positional, flags) {
       return;
     case "add": {
       need();
-      const role = typeof flags.role === "string" ? flags.role : "member";
+      const role = typeof flags.role === "string" ? flags.role : "developer";
       const user = await auth.createUser(name, await newPassword(`Password for ${name}`), role);
       console.log(`${c.green("✔")} ${user.username} added (${user.role})`);
       return;
@@ -3984,7 +4035,7 @@ async function cmdUsers(sub, positional, flags) {
     default:
       console.error(
         c.red(
-          "✖ Usage: agenthub users list | add <name> [--role admin|analyst|member] | passwd <name> | role <name> <role> | disable <name> | enable <name> | assign <workspace id> <name> | audit [--limit N]"
+          "✖ Usage: agenthub users list | add <name> [--role admin|analyst|developer] | passwd <name> | role <name> <role> | disable <name> | enable <name> | assign <workspace id> <name> | audit [--limit N]"
         )
       );
       process.exitCode = 1;
@@ -4061,6 +4112,8 @@ async function runCommand(argv) {
       return cmdStart(flags);
     case "stop":
       return cmdStop();
+    case "uninstall":
+      return cmdUninstall(flags);
     case "service":
       return cmdService(positional[0], flags);
     case "server":