Rename the coarse gate from role to permission, matching RBAC

examples/config/menu.ts

@@ -3,7 +3,7 @@
 // config/ ships empty; mount your own or copy this in. Absent config = built-in defaults.
 //
 // Brand the app and reorder/rename/group/hide nav nodes (by their `id`) across all plugins —
-// the override always wins, applied before the per-user role filter. Every field is
+// the override always wins, applied before the per-user permission filter. Every field is
 // optional; delete one to fall back to the default.
 // See src/ui/menu-config.ts (types), src/ui/nav.ts (NavOverride), README.md (The menu system).
 
@@ -20,7 +20,7 @@ export default defineMenu({
   // Operator override (rename → group → order → hide), keyed by node id.
   override: {
     // rename: { people: "Staff" },                                       // node id → new label
-    // groups: [{ id: "admin", label: "Admin", children: ["users", "roles"] }],
+    // groups: [{ id: "admin", label: "Admin", children: ["users", "permissions"] }],
     // order: ["people", "reports"],                                      // top-level order by id
     // hide: ["teams"],                                                    // remove nodes (any depth)
   },