feat(ui): introduce PferdReiterEingabe, NennungenTabelle, and NennungsMaske components

- Added `PferdReiterEingabe` for horse and rider selection with search functionality and keyboard navigation.
- Implemented `NennungenTabelle` to display filtered registrations based on selected horse or rider.
- Introduced `NennungsMaske` to combine search, table, and competition views for streamlined user interaction.
- Extended types with `Veranstalter` interface and mock data for better context and integration.
- Documented ÖTO-compliant tournament structure for frontend reference.

Signed-off-by: Stefan Mogeritsch <stefan.mo.co@gmail.com>

docs/06_Frontend/FIGMA/Vision_03/src/app/routes.tsx

@@ -0,0 +1,48 @@
+import {createBrowserRouter} from 'react-router';
+import {Login} from './components/Login';
+import {AdminVerwaltung} from './components/Dashboard';
+import {TurnierErstellen} from './components/TurnierErstellen';
+import {TurnierAnsicht} from './components/TurnierAnsicht';
+import {VeranstalterAuswahl} from './components/VeranstalterAuswahl';
+import {NeuerVeranstalter} from './components/NeuerVeranstalter';
+import {VeranstalterUebersicht} from './components/VeranstalterUebersicht';
+import {VeranstalterProfil} from './components/VeranstalterProfil';
+
+export const router = createBrowserRouter([
+  {
+    path: '/',
+    Component: Login,
+  },
+  {
+    path: '/admin',
+    Component: AdminVerwaltung,
+  },
+  {
+    path: '/veranstalter/auswahl',
+    Component: VeranstalterAuswahl,
+  },
+  {
+    path: '/veranstalter/neu',
+    Component: NeuerVeranstalter,
+  },
+  {
+    path: '/veranstalter/:id',
+    Component: VeranstalterUebersicht,
+  },
+  {
+    path: '/veranstalter/:id/profil',
+    Component: VeranstalterProfil,
+  },
+  {
+    path: '/veranstaltung/:id',
+    Component: TurnierErstellen,
+  },
+  {
+    path: '/veranstaltung/:veranstaltungId/turnier/neu',
+    Component: TurnierAnsicht,
+  },
+  {
+    path: '/veranstaltung/:veranstaltungId/turnier/:nr',
+    Component: TurnierAnsicht,
+  },
+]);