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/src/app/page.tsx

@@ -0,0 +1,25 @@
+"use client"
+
+import { useEffect } from "react"
+import { useRouter } from "next/navigation"
+import { useAuth } from "@/lib/auth"
+import { Loader2 } from "lucide-react"
+
+export default function HomePage() {
+  const router = useRouter()
+  const { token } = useAuth()
+
+  useEffect(() => {
+    if (token) {
+      router.push("/dashboard")
+    } else {
+      router.push("/login")
+    }
+  }, [token, router])
+
+  return (
+    <div className="min-h-screen flex items-center justify-center">
+      <Loader2 className="w-8 h-8 animate-spin text-muted-foreground" />
+    </div>
+  )
+}