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

frontend/shadcn.json

@@ -0,0 +1 @@
+{"componentLib":"radix","style":"default","baseColor":"zinc","cssVariables":true,"tailwindConfigFile":"tailwind.config.ts","usingCssVars":true}