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/i18n/locales/en.json

@@ -17,7 +17,8 @@
     "auditLog": "Audit Log",
     "settings": "Settings",
     "aiAssistant": "AI Assistant",
-    "mcpSettings": "MCP Settings"
+    "mcpSettings": "MCP Settings",
+    "reports": "Reports"
   },
   "auth": {
     "login": "Sign In",
@@ -967,5 +968,33 @@
       "tools": "Tools",
       "noTools": "No tools available"
     }
+  },
+  "reports": {
+    "title": "Reports",
+    "presetReports": "Preset Reports",
+    "templates": "Templates",
+    "newTemplate": "New Template",
+    "editTemplate": "Edit Template",
+    "selectTemplate": "Select a template",
+    "noTemplates": "No templates yet",
+    "templateName": "Template name",
+    "templateContent": "Jinja2 template content (HTML for PDF)",
+    "templateCreated": "Template created successfully",
+    "templateUpdated": "Template updated successfully",
+    "templateDeleted": "Template deleted",
+    "confirmDelete": "Delete this template?",
+    "errorNameRequired": "Name is required",
+    "errorContentRequired": "Template content is required",
+    "saveFailed": "Failed to save template",
+    "deleteFailed": "Failed to delete template",
+    "generate": "Generate",
+    "generateReport": "Generate Report",
+    "generated": "Report generated successfully",
+    "generateFailed": "Failed to generate report",
+    "jsonData": "Data (JSON)",
+    "invalidJson": "Invalid JSON data",
+    "selectTemplateHint": "Select a template from the list",
+    "downloadHistory": "Download History",
+    "noDownloads": "No downloads yet"
   }
 }