Merge lane/auftraege in feature/craftvia-mvp

Konflikte gelöst: Header mit Suche (L2) und Glocke (L6), Audit-Labels vereinigt
(ohne doppeltes sync_operation), Navigation mit Benachrichtigungen und Auftragsvorlagen.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

src/lib/nav.ts

@@ -11,6 +11,7 @@ import {
   Bell,
   History,
   Mail,
+  ListChecks,
   type LucideIcon,
 } from "lucide-react";
 import type { ModuleKey } from "@/lib/modules";
@@ -53,6 +54,7 @@ export const NAV_ITEMS: readonly NavItem[] = [
   { href: "/reports", label: "reports", icon: FileText, module: "reports", permissions: ["report:read"], section: "main" },
   { href: "/documents", label: "documents", icon: FolderOpen, module: "documents", permissions: ["document:read"], section: "main" },
   { href: "/notifications", label: "notifications", icon: Bell, module: "notifications", permissions: ["notification:read"], section: "main" },
+  { href: "/settings/order-types", label: "templates", icon: ListChecks, permissions: ["settings:templates"], section: "admin" },
   { href: "/settings", label: "settings", icon: Settings, permissions: ["tenant:manage"], section: "admin" },
   { href: "/settings/email", label: "email", icon: Mail, module: "notifications", permissions: ["tenant:manage"], section: "admin" },
   { href: "/settings/audit", label: "audit", icon: History, permissions: ["audit:read"], section: "admin" },