完善老师页面，数据管理增加按key筛查

main/views.py

@@ -10,9 +10,7 @@ def home(request):
     if session_user_id is None:
         return redirect("/accounts/login/")
 
-    # Show user_id (prefer query param if present, but don't trust it)
-    user_id_qs = request.GET.get("user_id")
-    uid = user_id_qs or session_user_id
+    uid = session_user_id
     perm = request.session.get("permission")
     u = get_user_by_id(uid) if uid is not None else None
     if perm is None and uid is not None:
@@ -26,9 +24,11 @@ def home(request):
             perm = int(perm)
         except Exception:
             perm = 1
+    has_manage_key = bool((u or {}).get("manage_key") or [])
     context = {
         "user_id": uid,
         "username": (u or {}).get("username"),
         "is_admin": (int(perm) == 0),
+        "has_manage_key": has_manage_key,
     }
     return render(request, "main/home.html", context)