feat: v2.7.6 — edit users in one form, Settings → Account, display names, copy over plain HTTP

- Users page: one Edit user form (display name, email, role, active, a new or
  generated password, workspaces given or taken back, sign out everywhere),
  validated as a whole before anything is written (PATCH /api/users/:id,
  GET /api/users/:id); users.display_name/email added migration-safe.
- Settings → Account for every signed-in user: profile, own password (the
  current one required, this login kept), sign out other devices
  (/api/me/account, /api/me/password, /api/me/sign-out-others; login cookie
  only, never a pane token).
- Display names wherever a person is named (sidebar, workspace owner groups,
  Users page and audit log); owner_display_name / reader_display additive.
- Users page: admins add and remove Claude/Codex pool accounts.
- Folder browser: an admin with their own Linux account opens in their home;
  the "Server folder" tick opens the host's (never remembered).
- AI Proxy: "Config 9router" beside Add profile when 9router is installed,
  opened on the dashboard's own host (GET /api/ai-proxies/9router).
- Terminal: a tmux selection reaches the clipboard over plain HTTP too
  (writeClipboard's textarea fallback, focus handed back).
- Chat: a file the session touched outside the workspace previews
  (GET /api/sessions/:id/file).
- install-system: `!requiretty` only when visudo accepts it (sudo-rs on
  Ubuntu 25.10+ rejects the setting).
- openapi.yaml regenerated; docs (API, SERVER-MODE, LANES) updated.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

server/index.js

@@ -772,6 +772,18 @@ function startBackgroundServices() {
     }, HEAL_MS);
     if (healTimer.unref) healTimer.unref();
   }
+  // Claude pool logins (claude-pool.js, kind `login`): the server is the one
+  // holder that refreshes them, ahead of every member home it placed one in,
+  // and pushes the new pair there. Off with DASHBOARD_POOL_REFRESH_MS=0.
+  const POOL_REFRESH_MS = Number(process.env.DASHBOARD_POOL_REFRESH_MS ?? 60_000);
+  if (Number.isFinite(POOL_REFRESH_MS) && POOL_REFRESH_MS > 0) {
+    const poolTimer = setInterval(() => {
+      require("./lib/claude-pool")
+        .refreshLogins()
+        .catch((err) => console.warn("claude pool refresh failed:", err.message));
+    }, POOL_REFRESH_MS);
+    if (poolTimer.unref) poolTimer.unref();
+  }
   // Another dashboard on the same database (hooks reach only one of them)
   // moving a lane: re-broadcast it here. One pragma per beat when nothing
   // changed. Off with DASHBOARD_LANE_SYNC_MS=0.