Task 5.25: Dashboard-System — GET /api/v1/dashboard/widgets, DashboardWidgetLoader, DashboardGrid with drag-and-drop, 3 example widgets (RecentContacts, TasksSummary, CalendarUpcoming), updated Dashboard.tsx, i18n, 6 tests

app/main.py

@@ -30,6 +30,7 @@ from app.routes import (
     auth,
     contact_folders,
     contacts,
+    dashboard,
     entity_history,
     groups,
     health,
@@ -293,6 +294,7 @@ def create_app() -> FastAPI:
     app.include_router(notifications.router)
     app.include_router(contacts.router)
     app.include_router(contact_folders.router)
+    app.include_router(dashboard.router)
     app.include_router(entity_history.router)
     app.include_router(import_export.router)
     app.include_router(plugins.router)