Add facilities, contracts, orders, value lists, audit log, and desktop app modules

Extends omsorgCore with full CRUD for Facility/Contract/Order plus
configurable value lists and an audit trail, and wires the omsorgapp
frontend up to the new facilities, settings, and audit-log modules;
includes a sidebar active-nav-item highlight.

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

omsorgapp/src/components/Sidebar.jsx

@@ -9,7 +9,8 @@ import {
   FileText,
   BarChart3,
   Settings,
-  Bug
+  Bug,
+  ScrollText
 } from "lucide-react";
 import { useAuth } from "../app/AuthContext";
 import { isNavItemVisible } from "../app/navPermissions";
@@ -24,7 +25,8 @@ const menu = [
   { icon: FileText, label: "Rechnungen" },
   { icon: BarChart3, label: "Controlling" },
   { icon: Settings, label: "Einstellungen" },
-  { icon: Bug, label: "Debug" }
+  { icon: Bug, label: "Debug" },
+  { icon: ScrollText, label: "Audit-Log" }
 ];
 
 export default function Sidebar({