fix: authenticate admin system status endpoint

Author: DrAbdulmalek

app/routers/admin.py

@@ -1,9 +1,13 @@
 # app/routers/admin.py
 """Admin Router - Stub for future implementation"""
-from fastapi import APIRouter
+from fastapi import APIRouter, Depends
+
+from app.core.security import get_current_user
+from app.db.models.auth import User
 
 router = APIRouter()
 
+
 @router.get("/system-status")
-async def system_status():
+async def system_status(current_user: User = Depends(get_current_user)):
     return {"status": "healthy", "message": "Admin endpoints - coming soon"}