feat(kaisertisch): implement Kaisertisch tournament functionality with model, routes, and controller

backend/server.js

@@ -21,6 +21,7 @@ import {
 import authRoutes from './routes/authRoutes.js';
 import clubRoutes from './routes/clubRoutes.js';
 import diaryRoutes from './routes/diaryRoutes.js';
+import kaisertischRoutes from './routes/kaisertischRoutes.js';
 import memberRoutes from './routes/memberRoutes.js';
 import participantRoutes from './routes/participantRoutes.js';
 import activityRoutes from './routes/activityRoutes.js';
@@ -339,6 +340,7 @@ app.use('/api/auth', authRoutes);
 app.use('/api/clubs', clubRoutes);
 app.use('/api/clubmembers', memberRoutes);
 app.use('/api/diary', diaryRoutes);
+app.use('/api/kaisertisch', kaisertischRoutes);
 app.use('/api/participants', participantRoutes);
 app.use('/api/activities', activityRoutes);
 app.use('/api/membernotes', memberNoteRoutes);