Initial commit: WrestleDesk full project

- Django backend with DRF (clubs, wrestlers, trainers, exercises, templates, trainings, homework, locations, leistungstest)
- Next.js 16 frontend with React, Shadcn UI, Tailwind
- JWT authentication
- Full CRUD for all entities
- Calendar view for trainings
- Homework management system
- Leistungstest tracking

backend/trainings/admin.py

@@ -0,0 +1,22 @@
+import unfold
+from unfold.admin import ModelAdmin as UnfoldModelAdmin
+from django.contrib import admin
+from .models import Training, Attendance
+
+
+@admin.register(Training)
+class TrainingAdmin(UnfoldModelAdmin):
+    list_display = ['date', 'start_time', 'group', 'location', 'is_completed']
+    list_filter = ['group', 'is_completed', 'date']
+    search_fields = ['notes']
+    readonly_fields = ['created_at', 'updated_at']
+    raw_id_fields = ['location', 'template']
+    filter_horizontal = ['trainers']
+    date_hierarchy = 'date'
+
+
+@admin.register(Attendance)
+class AttendanceAdmin(UnfoldModelAdmin):
+    list_display = ['training', 'wrestler', 'created_at']
+    list_filter = ['training']
+    raw_id_fields = ['training', 'wrestler']