feat(admin): add is_expired field to PaymentAdmin for better payment visibility ✨

feat(admin): include expiry_date in DeviceAdmin for enhanced device management ✨

billing/admin.py

@@ -13,10 +13,16 @@ class PaymentAdmin(admin.ModelAdmin):
         "paid",
         "paid_at",
         "method",
+        "is_expired",
+        "expires_at",
         "created_at",
         "updated_at",
     )
 
+    @admin.display(boolean=True, description="Expired")
+    def is_expired(self, obj):
+        return obj.is_expired
+
 
 class TopupAdmin(admin.ModelAdmin):
     list_display = (