Phase 5 Batch 5 Task 5.19: Report Generator Frontend-Oberfläche

- Created frontend/src/api/reports.ts: React Query hooks for templates, presets, generate
- Created frontend/src/pages/Reports.tsx: 3-column layout (template list, editor, generate)
- Preset quick-action buttons with format selection (PDF/Print/CSV/Excel)
- Template editor with Jinja2 code textarea, name, output format selector
- JSON data input for report parameters
- Download history tracking
- Route /reports registered in index.tsx (lazy-loaded)
- i18n keys added to de.json and en.json (reports section + nav.reports)
- 5 frontend tests: page render, template list, new template, select template, download history
- TSC: 0 new errors (2 pre-existing Dms.tsx errors only)

frontend/src/routes/index.tsx

@@ -39,6 +39,7 @@ const SettingsMcpPage = React.lazy(() => import('@/pages/SettingsMcp').then(m =>
 const AutomationDashboardPage = React.lazy(() => import('@/pages/AutomationDashboard').then(m => ({ default: m.AutomationDashboardPage })));
 const AgentDashboardPage = React.lazy(() => import('@/pages/AgentDashboard').then(m => ({ default: m.AgentDashboardPage })));
 const AutomationSettingsPage = React.lazy(() => import('@/pages/AutomationSettings').then(m => ({ default: m.AutomationSettingsPage })));
+const ReportsPage = React.lazy(() => import('@/pages/Reports').then(m => ({ default: m.ReportsPage })));
 
 /** Centered spinner fallback for lazy-loaded routes */
 function PageLoader() {
@@ -89,6 +90,7 @@ const router = createBrowserRouter([
       { path: '/ai-assistant', element: withSuspense(<AIAssistantPage />) },
       { path: '/automation', element: withSuspense(<AutomationDashboardPage />) },
       { path: '/agents', element: withSuspense(<AgentDashboardPage />) },
+      { path: '/reports', element: withSuspense(<ReportsPage />) },
       { path: '/profile', element: withSuspense(<SettingsProfilePage />) },
       {
         path: '/settings',