For Optimize cloud deployments, we should create a liveness probe endpoint that can be used to determine whether Optimize should be restarted. It should be available without authentication at /api/healthz.

ATs:

• The health probe can be accessed at /api/healthz
• We add it to our API documentation
• We add its usage to our technical documentation

Hints:

• We should check with SRE what the expected status codes are
• The definition of "live" needs to also be determined. Maybe it is just whether or not the application is running