fix: connect all new pages to router + navigation + backend API routes (Workstream, Wiki, Improvement, Onboarding, Dashboard, DSGVO), platform.py with 9 endpoints, tsc clean

frontend/src/components/layout/Sidebar.tsx

@@ -14,6 +14,7 @@ import {
   Reply, Forward, Paperclip, MoreVertical, RefreshCw, Download,
   Upload, Eye, EyeOff, Lock, Unlock, Clock, AlertCircle,
   CheckCircle, XCircle, Info, Loader2, Inbox, Send,
+  BookOpen, Lightbulb,
 } from 'lucide-react';
 
 const ICON_MAP: Record<string, React.ComponentType<{ className?: string }>> = {
@@ -24,7 +25,7 @@ const ICON_MAP: Record<string, React.ComponentType<{ className?: string }>> = {
   Plus, Edit, Filter, Star, Archive, Reply, Forward, Paperclip,
   MoreVertical, RefreshCw, Download, Upload, Eye, EyeOff, Lock,
   Unlock, Clock, AlertCircle, CheckCircle, XCircle, Info, Loader2,
-  Inbox, Send, ChevronRight,
+  Inbox, Send, ChevronRight, BookOpen, Lightbulb,
 };
 import { useMenuOrder } from '@/api/users';
 import { usePermission } from '@/hooks/usePermission';
@@ -53,6 +54,10 @@ function getIcon(name: string): React.ReactNode {
 const singleItems: NavSingleItem[] = [
   { to: '/dashboard', labelKey: 'nav.dashboard', icon: <Home className="w-5 h-5 flex-shrink-0" aria-hidden="true" strokeWidth={2} />, order: 0 },
   { to: '/contacts', labelKey: 'nav.contacts', icon: <Users className="w-5 h-5 flex-shrink-0" aria-hidden="true" strokeWidth={2} />, order: 10 },
+  { to: '/workstream', labelKey: 'nav.workstream', icon: <MessageSquare className="w-5 h-5 flex-shrink-0" aria-hidden="true" strokeWidth={2} />, order: 25 },
+  { to: '/wiki', labelKey: 'nav.wiki', icon: <BookOpen className="w-5 h-5 flex-shrink-0" aria-hidden="true" strokeWidth={2} />, order: 30 },
+  { to: '/improvement', labelKey: 'nav.improvement', icon: <Lightbulb className="w-5 h-5 flex-shrink-0" aria-hidden="true" strokeWidth={2} />, order: 90 },
+  { to: '/onboarding', labelKey: 'nav.onboarding', icon: <Sparkles className="w-5 h-5 flex-shrink-0" aria-hidden="true" strokeWidth={2} />, order: 95 },
 ];
 
 const bottomItems: NavSingleItem[] = [];

frontend/src/i18n/locales/de.json

@@ -19,7 +19,11 @@
     "aiAssistant": "KI Assistent",
     "mcpSettings": "MCP Einstellungen",
     "reports": "Reports",
-    "tasks": "Aufgaben"
+    "tasks": "Aufgaben",
+    "workstream": "Workstream",
+    "wiki": "Wiki",
+    "improvement": "Verbesserungen",
+    "onboarding": "Onboarding"
   },
   "auth": {
     "login": "Anmelden",

frontend/src/i18n/locales/en.json

@@ -19,7 +19,11 @@
     "aiAssistant": "AI Assistant",
     "mcpSettings": "MCP Settings",
     "reports": "Reports",
-    "tasks": "Tasks"
+    "tasks": "Tasks",
+    "workstream": "Workstream",
+    "wiki": "Wiki",
+    "improvement": "Improvements",
+    "onboarding": "Onboarding"
   },
   "auth": {
     "login": "Sign In",

frontend/src/pages/Onboarding.tsx

@@ -0,0 +1,26 @@
+/**
+ * OnboardingPage — Route wrapper for SetupWizard component.
+ * Renders the SetupWizard as a full-page dialog.
+ */
+
+import React, { useCallback } from 'react';
+import { useNavigate } from 'react-router-dom';
+import { SetupWizard } from '@/components/onboarding/SetupWizard';
+
+export function OnboardingPage() {
+  const navigate = useNavigate();
+
+  const handleClose = useCallback(() => {
+    navigate('/dashboard');
+  }, [navigate]);
+
+  const handleComplete = useCallback(() => {
+    navigate('/dashboard');
+  }, [navigate]);
+
+  return (
+    <SetupWizard open={true} onClose={handleClose} onComplete={handleComplete} />
+  );
+}
+
+export default OnboardingPage;

frontend/src/routes/index.tsx

@@ -88,6 +88,10 @@ const LogsOverviewPage = React.lazy(() => import('@/pages/logs/LogsOverview').th
 const LogsPlaceholderPage = React.lazy(() => import('@/pages/logs/LogsPlaceholder').then(m => ({ default: m.LogsPlaceholderPage })));
 const HelpApiDocsPage = React.lazy(() => import('@/pages/help/HelpApiDocs').then(m => ({ default: m.HelpApiDocsPage })));
 const ApiDocsPage = React.lazy(() => import('@/pages/ApiDocs').then(m => ({ default: m.ApiDocsPage })));
+const WorkstreamPage = React.lazy(() => import('@/pages/Workstream').then(m => ({ default: m.WorkstreamPage })));
+const WikiPage = React.lazy(() => import('@/pages/Wiki').then(m => ({ default: m.WikiPage })));
+const ImprovementCenterPage = React.lazy(() => import('@/components/improvement/ImprovementCenter').then(m => ({ default: m.ImprovementCenter })));
+const OnboardingPage = React.lazy(() => import('@/pages/Onboarding').then(m => ({ default: m.OnboardingPage })));
 
 /** Centered spinner fallback for lazy-loaded routes */
 function PageLoader() {
@@ -266,6 +270,10 @@ const router = createBrowserRouter([
       { path: '/tags', element: <PermissionRoute permission="tags:read">{withSuspense(<TagsPage />)}</PermissionRoute> },
       { path: '/api-docs', element: <PermissionRoute permission="settings:read">{withSuspense(<ApiDocsPage />)}</PermissionRoute> },
       { path: '/activity', element: <PermissionRoute permission="activity:read">{withSuspense(<ActivityTimelinePage />)}</PermissionRoute> },
+      { path: '/workstream', element: withSuspense(<WorkstreamPage />) },
+      { path: '/wiki', element: withSuspense(<WikiPage />) },
+      { path: '/improvement', element: withSuspense(<ImprovementCenterPage />) },
+      { path: '/onboarding', element: withSuspense(<OnboardingPage />) },
       { path: '/profile', element: withSuspense(<SettingsProfilePage />) },
       { path: '*', element: <ErrorBoundary>{<PluginRouteRenderer />}</ErrorBoundary> },
     ],