Proposal: Add severity to maintenance

I am currently implementing openstatus into our customer portal. I want to manage the maintenances in openstatus and want our portal to act accordingly. That is, if a maintenance is active also display a banner or even lock access completely. As there are definitely maintenances with different scopes, a severity selection for a given maintenance would be very useful. I picture something like you've already done with the incidents:

• Operational: There is a maintenance under the hood, but it does not affect the access itself. This is a purely informational banner.
• Degraded: Portal is still available, but during maintenance there might be some (partial) failures. In general, everything should still work.
• Outage (or similar): The portal as a whole is closed down and every request will result in a 503.

This could either be configured at the maintenance or component level (but, for us personally most important at component level).